Merge branch 'master' of https://github.com/RT-Thread/rt-thread into malloc

bsp/CME_M7/applications/startup.c

@@ -47,12 +47,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/avr32uc3b0/startup.c

@@ -30,8 +30,6 @@ int main(void)
 #endif
 
 	rt_hw_board_init();
-	rt_system_tick_init();
-	rt_system_object_init();
 	rt_system_timer_init();
 
 #ifdef RT_USING_HEAP

bsp/bf533/startup.c

@@ -35,12 +35,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/efm32/startup.c

@@ -102,12 +102,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/fh8620/platform/fh8620/iot_cam/startup.c

@@ -93,12 +93,6 @@ void rtthread_startup(void)
 	/* show version */
 	rt_show_version();
 
-	/* initialize tick */
-	rt_system_tick_init();
-
-	/* initialize kernel object */
-	rt_system_object_init();
-
 	/* initialize timer system */
 	rt_system_timer_init();
 

bsp/frdm-k64f/applications/startup.c

@@ -65,12 +65,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/gkipc/armv6/rtos_lib.c

@@ -1095,14 +1095,9 @@ U32 RTOS_InitKernel(U32 Heap_size)
     /* show version */
     //rt_show_version();
 
-    /* initialize tick */
-    //rt_system_tick_init();
     RTOS_HwTickInit();
     //rt_kprintf("set tick\n");
 
-    /* initialize kernel object */
-    rt_system_object_init();
-
     /* initialize timer system */
     rt_system_timer_init();
 

bsp/k210/.config

@@ -70,6 +70,8 @@ CONFIG_RT_VER_NUM=0x40003
 CONFIG_ARCH_CPU_64BIT=y
 # CONFIG_RT_USING_CPU_FFS is not set
 CONFIG_ARCH_RISCV=y
+CONFIG_ARCH_RISCV_FPU=y
+CONFIG_ARCH_RISCV_FPU_S=y
 CONFIG_ARCH_RISCV64=y
 # CONFIG_ARCH_CPU_STACK_GROWS_UPWARD is not set
 
@@ -150,8 +152,10 @@ CONFIG_RT_SERIAL_RB_BUFSZ=64
 # CONFIG_RT_USING_HWTIMER is not set
 # CONFIG_RT_USING_CPUTIME is not set
 # CONFIG_RT_USING_I2C is not set
+# CONFIG_RT_USING_PHY is not set
 CONFIG_RT_USING_PIN=y
 # CONFIG_RT_USING_ADC is not set
+# CONFIG_RT_USING_DAC is not set
 # CONFIG_RT_USING_PWM is not set
 # CONFIG_RT_USING_MTD_NOR is not set
 # CONFIG_RT_USING_MTD_NAND is not set
@@ -192,6 +196,7 @@ CONFIG_RT_USING_LIBC=y
 CONFIG_RT_USING_POSIX=y
 # CONFIG_RT_USING_POSIX_MMAP is not set
 # CONFIG_RT_USING_POSIX_TERMIOS is not set
+# CONFIG_RT_USING_POSIX_GETLINE is not set
 # CONFIG_RT_USING_POSIX_AIO is not set
 # CONFIG_RT_USING_MODULE is not set
 
@@ -262,7 +267,9 @@ CONFIG_ULOG_BACKEND_USING_CONSOLE=y
 #
 # IoT - internet of things
 #
+# CONFIG_PKG_USING_LORAWAN_DRIVER is not set
 # CONFIG_PKG_USING_PAHOMQTT is not set
+# CONFIG_PKG_USING_UMQTT is not set
 # CONFIG_PKG_USING_WEBCLIENT is not set
 # CONFIG_PKG_USING_WEBNET is not set
 # CONFIG_PKG_USING_MONGOOSE is not set
@@ -308,7 +315,7 @@ CONFIG_ULOG_BACKEND_USING_CONSOLE=y
 # CONFIG_PKG_USING_GAGENT_CLOUD is not set
 # CONFIG_PKG_USING_ALI_IOTKIT is not set
 # CONFIG_PKG_USING_AZURE is not set
-# CONFIG_PKG_USING_TENCENT_IOTHUB is not set
+# CONFIG_PKG_USING_TENCENT_IOT_EXPLORER is not set
 # CONFIG_PKG_USING_JIOT-C-SDK is not set
 # CONFIG_PKG_USING_UCLOUD_IOT_SDK is not set
 # CONFIG_PKG_USING_JOYLINK is not set
@@ -330,6 +337,9 @@ CONFIG_ULOG_BACKEND_USING_CONSOLE=y
 # CONFIG_PKG_USING_CAPNP is not set
 # CONFIG_PKG_USING_RT_CJSON_TOOLS is not set
 # CONFIG_PKG_USING_AGILE_TELNET is not set
+# CONFIG_PKG_USING_NMEALIB is not set
+# CONFIG_PKG_USING_AGILE_JSMN is not set
+# CONFIG_PKG_USING_PDULIB is not set
 
 #
 # security packages
@@ -338,6 +348,7 @@ CONFIG_ULOG_BACKEND_USING_CONSOLE=y
 # CONFIG_PKG_USING_libsodium is not set
 # CONFIG_PKG_USING_TINYCRYPT is not set
 # CONFIG_PKG_USING_TFM is not set
+# CONFIG_PKG_USING_YD_CRYPTO is not set
 
 #
 # language packages
@@ -372,7 +383,9 @@ CONFIG_ULOG_BACKEND_USING_CONSOLE=y
 # CONFIG_PKG_USING_CHINESE_FONT_LIBRARY is not set
 # CONFIG_PKG_USING_LUNAR_CALENDAR is not set
 # CONFIG_PKG_USING_BS8116A is not set
+# CONFIG_PKG_USING_GPS_RMC is not set
 # CONFIG_PKG_USING_URLENCODE is not set
+# CONFIG_PKG_USING_UMCN is not set
 
 #
 # system packages
@@ -396,6 +409,10 @@ CONFIG_ULOG_BACKEND_USING_CONSOLE=y
 # CONFIG_PKG_USING_SYSWATCH is not set
 # CONFIG_PKG_USING_SYS_LOAD_MONITOR is not set
 # CONFIG_PKG_USING_PLCCORE is not set
+# CONFIG_PKG_USING_RAMDISK is not set
+# CONFIG_PKG_USING_MININI is not set
+# CONFIG_PKG_USING_QBOOT is not set
+# CONFIG_PKG_USING_UCOSIII_WRAPPER is not set
 
 #
 # peripheral libraries and drivers
@@ -441,6 +458,7 @@ CONFIG_PKG_KENDRYTE_SDK_VERNUM=0x0055
 # CONFIG_PKG_USING_RPLIDAR is not set
 # CONFIG_PKG_USING_AS608 is not set
 # CONFIG_PKG_USING_RC522 is not set
+# CONFIG_PKG_USING_WS2812B is not set
 # CONFIG_PKG_USING_EMBARC_BSP is not set
 # CONFIG_PKG_USING_EXTERN_RTC_DRIVERS is not set
 # CONFIG_PKG_USING_MULTI_RTIMER is not set
@@ -450,6 +468,12 @@ CONFIG_PKG_KENDRYTE_SDK_VERNUM=0x0055
 # CONFIG_PKG_USING_PMS_SERIES is not set
 # CONFIG_PKG_USING_NUCLEI_SDK is not set
 # CONFIG_PKG_USING_CAN_YMODEM is not set
+# CONFIG_PKG_USING_LORA_RADIO_DRIVER is not set
+# CONFIG_PKG_USING_QLED is not set
+# CONFIG_PKG_USING_PAJ7620 is not set
+# CONFIG_PKG_USING_AGILE_CONSOLE is not set
+# CONFIG_PKG_USING_LD3320 is not set
+# CONFIG_PKG_USING_WK2124 is not set
 
 #
 # miscellaneous packages
@@ -486,6 +510,9 @@ CONFIG_PKG_KENDRYTE_SDK_VERNUM=0x0055
 # CONFIG_PKG_USING_VT100 is not set
 # CONFIG_PKG_USING_ULAPACK is not set
 # CONFIG_PKG_USING_UKAL is not set
+# CONFIG_PKG_USING_CRCLIB is not set
+# CONFIG_PKG_USING_THREES is not set
+# CONFIG_PKG_USING_2048 is not set
 CONFIG_BOARD_K210_EVB=y
 CONFIG_BSP_USING_UART_HS=y
 

bsp/k210/Kconfig

@@ -21,6 +21,7 @@ source "$PKGS_DIR/Kconfig"
 config BOARD_K210_EVB
     bool
     select ARCH_RISCV64
+    select ARCH_RISCV_FPU_S
     select PKG_USING_KENDRYTE_SDK
     select RT_USING_COMPONENTS_INIT
     select RT_USING_USER_MAIN

bsp/k210/rtconfig.h

@@ -48,6 +48,8 @@
 #define RT_VER_NUM 0x40003
 #define ARCH_CPU_64BIT
 #define ARCH_RISCV
+#define ARCH_RISCV_FPU
+#define ARCH_RISCV_FPU_S
 #define ARCH_RISCV64
 
 /* RT-Thread Components */

bsp/k210/rtconfig.py

@@ -38,7 +38,7 @@ if PLATFORM == 'gcc':
     OBJDUMP = PREFIX + 'objdump'
     OBJCPY  = PREFIX + 'objcopy'
 
-    DEVICE  = ' -mcmodel=medany -march=rv64imafdc -mabi=lp64d'
+    DEVICE  = ' -mcmodel=medany -march=rv64imafc -mabi=lp64f -fsingle-precision-constant'
     CFLAGS  = DEVICE + ' -fno-common -ffunction-sections -fdata-sections -fstrict-volatile-bitfields'
     AFLAGS  = ' -c' + DEVICE + ' -x assembler-with-cpp'
     LFLAGS  = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,_start -T link.lds'

bsp/lm3s8962/applications/startup.c

@@ -77,12 +77,6 @@ void rtthread_startup(void)
 	/* show version */
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/lm3s9b9x/applications/startup.c

@@ -77,12 +77,6 @@ void rtthread_startup(void)
 	/* show version */
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/lm4f232/applications/startup.c

@@ -77,12 +77,6 @@ void rtthread_startup(void)
 	/* show version */
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/lpc2148/applications/startup.c

@@ -52,12 +52,6 @@ void rtthread_startup(void)
     /* init board */
     rt_hw_board_init();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     rt_show_version();
 
     /* init timer system */

bsp/lpc2478/applications/startup.c

@@ -38,12 +38,6 @@ void rtthread_startup(void)
     /* init board */
     rt_hw_board_init();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     rt_show_version();
 
     /* init timer system */

bsp/lpc5410x/applications/startup.c

@@ -27,12 +27,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* initialize tick */
-    rt_system_tick_init();
-
-    /* initialize kernel object */
-    rt_system_object_init();
-
     /* initialize timer system */
     rt_system_timer_init();
 

bsp/lpc824/applications/startup.c

@@ -52,12 +52,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/m16c62p/applications/startup.c

@@ -48,13 +48,7 @@ void rtthread_startup(void)
 
 	/* show version */
 	rt_show_version();
-
-	/* init tick */
-	rt_system_tick_init();
-    
-	/* init kernel object */
-	rt_system_object_init();
-    
+        
 	/* init timer system */
 	rt_system_timer_init();
     

bsp/mb9bf500r/startup.c

@@ -44,12 +44,6 @@ void rtthread_startup(void)
 	/* show version */
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/microblaze/startup.c

@@ -55,12 +55,6 @@ void rtthread_startup(void)
 	
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/mini4020/applications/startup.c

@@ -49,12 +49,6 @@ void rtthread_startup()
 	/* show version */
 	rt_show_version();
 		
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/nios_ii/startup.c

@@ -45,12 +45,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/nrf51822/applications/startup.c

@@ -48,12 +48,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/nrf52832/applications/startup.c

@@ -48,12 +48,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/nrf5x/libraries/templates/nrf52x/applications/startup.c

@@ -48,12 +48,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/pic32ethernet/startup.c

@@ -35,12 +35,6 @@ void rtthread_startup(void)
 	/* show version */
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/rm48x50/application/startup.c

@@ -81,12 +81,6 @@ void rtthread_startup(void)
 	/* init board */
 	rt_hw_board_init();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	rt_show_version();
 
 	/* init timer system */

bsp/sam7x/applications/startup.c

@@ -82,12 +82,6 @@ void rtthread_startup(void)
 
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/samd21/applications/startup.c

@@ -68,12 +68,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/sep6200/application/startup.c

@@ -63,12 +63,6 @@ void rtthread_startup()
 	/* show version */
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/simulator/applications/startup.c

@@ -47,12 +47,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/stm32/libraries/HAL_Drivers/drv_sdio.c

@@ -7,7 +7,8 @@
  * Date           Author       Notes
  * 2018-06-22     tyx          first
  * 2018-12-12     balanceTWK   first version
- * 2019-06-11     WillianChan   Add SD card hot plug detection
+ * 2019-06-11     WillianChan  Add SD card hot plug detection
+ * 2020-11-09     whj4674672   fix sdio non-aligned access problem
  */
 
 #include "board.h"
@@ -366,7 +367,7 @@ static void rthw_sdio_request(struct rt_mmcsd_host *host, struct rt_mmcsd_req *r
 
     if (req->cmd != RT_NULL)
     {
-        memset(&pkg, 0, sizeof(pkg));
+        rt_memset(&pkg, 0, sizeof(pkg));
         data = req->cmd->data;
         pkg.cmd = req->cmd;
 
@@ -382,7 +383,7 @@ static void rthw_sdio_request(struct rt_mmcsd_host *host, struct rt_mmcsd_req *r
                 pkg.buff = cache_buf;
                 if (data->flags & DATA_DIR_WRITE)
                 {
-                    memcpy(cache_buf, data->buf, size);
+                    rt_memcpy(cache_buf, data->buf, size);
                 }
             }
         }
@@ -391,13 +392,13 @@ static void rthw_sdio_request(struct rt_mmcsd_host *host, struct rt_mmcsd_req *r
 
         if ((data != RT_NULL) && (data->flags & DATA_DIR_READ) && ((rt_uint32_t)data->buf & (SDIO_ALIGN_LEN - 1)))
         {
-            memcpy(data->buf, cache_buf, data->blksize * data->blks);
+            rt_memcpy(data->buf, cache_buf, data->blksize * data->blks);
         }
     }
 
     if (req->stop != RT_NULL)
     {
-        memset(&pkg, 0, sizeof(pkg));
+        rt_memset(&pkg, 0, sizeof(pkg));
         pkg.cmd = req->stop;
         rthw_sdio_send_command(sdio, &pkg);
     }

bsp/stm32/stm32f401-st-nucleo/README.md

@@ -1,4 +1,4 @@
-# STM32F401 Nucleo-64 BSP (Board Support Package) Execution Instruction
+# STM32F401 Nucleo-64 BSP Introduction
 
 [中文页](README_zh.md) |
 
@@ -33,9 +33,11 @@ The mainly-used **on-board resources** are shown as follows:
 - Common-used interface: USB, Arduino Uno, and ST morpho
 - Debug interface: ST-LINK/V2-1 
 
-For more details about this board, please refer to the ST official documentation: [STM32 Nucleo-64 development board with STM32F401RE MCU](https://www.st.com/zh/evaluation-tools/nucleo-f401re.html)
+#### For more details about this board, please refer to the [ST official documentation](https://www.st.com/zh/evaluation-tools/nucleo-f401re.html)
 
-## Peripheral Condition
+
+
+### Peripheral Condition
 
 Each peripheral supporting condition for this BSP is as follows:
 
@@ -45,11 +47,11 @@ Each peripheral supporting condition for this BSP is as follows:
 | UART                           | Support     | UART2                               |
 | SPI                            | Support     | SPI1                                |
 
-## Execution Instruction
 
-### Quickly Get Started
 
-This BSP provides MDK5 and IAR projects for developers. Also support GCC development environment Here's an example of the MDK5 development environment, to introduce how to run the system.
+## Quickly Get Started
+
+This BSP provides MDK5 and IAR projects for developers. Also support GCC development environment. Here's an example of the MDK5 development environment, to introduce how to run the system.
 
 #### Hardware Connection
 
@@ -57,7 +59,7 @@ Use a Type-A to Mini-B cable to connect the development board to the PC and turn
 
 #### Compile And Download
 
-Double-click the project.uvprojx file, to open the MDK5 project, compile and download the program to the board.
+Double-click the `project.uvprojx` file, to open the MDK5 project, compile and download the program to the board.
 
 > By default, the project uses ST_LINK simulator to download the program, when the ST_LINK connects the board, clicking the download button can download the program to the board.
 
@@ -93,8 +95,6 @@ This BSP only enables GPIO and serial port 2 by default. If need more advanced f
 
 According to the pin number specification, in the new stm32 bsp framework, the GPIO driver is managed in a sequential numbering manner.
 
-## Notes
-
 The pin serial number corresponds to the pin name as shown in the following table:
 
 | STM32 Pin Name | Pin Sequence Number |
@@ -104,3 +104,8 @@ The pin serial number corresponds to the pin name as shown in the following tabl
 | PC0 - PC15     | 32 - 47             |
 | PD0 - ...      | 48 - ...            |
 
+
+
+## Maintained By
+
+[shaoguoji](https://github.com/shaoguoji)  752147916@qq.com

bsp/stm32/stm32f412-st-nucleo/README.md

@@ -1,107 +1,88 @@
-# NUCLEO-F412ZG 开发板 BSP 说明
+# STM32F412-Nucleo BSP Introduction
 
-## 简介
+[中文](README_zh.md) 
 
-本文档为 RT-Thread 开发团队为 NUCLEO-F412ZG 开发板提供的 BSP (板级支持包) 说明。
+## MCU: STM32F412ZG @100MHz, 1024KB FLASH,  256KB RAM
 
-主要内容如下：
+STM32F412xE/G devices are based on the high-performance Arm® Cortex® -M4 32-bit RISC core operating at a frequency of up to 100 MHz. Their Cortex®-M4 core features a Floating point unit (FPU) single precision which supports all Arm single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.
 
-- 开发板资源介绍
-- BSP 快速上手
-- 进阶使用方法
+STM32F412xE/G devices belong to the STM32 Dynamic Efficiency™ product line (with products combining power efficiency, performance and integration) while adding a new innovative feature called Batch Acquisition Mode (BAM) allowing even more power consumption saving during data batching.
+STM32F412xE/G devices incorporate high-speed embedded memories (up to 1 Mbyte of Flash memory, 256 Kbytes of SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB buses, three AHB buses and a 32-bit multi-AHB bus matrix.
+All devices offer one 12-bit ADC, a low-power RTC, twelve general-purpose 16-bit timers, two PWM timers for motor control and two general-purpose 32-bit timers.
+They also feature standard and advanced communication interfaces:
+In addition, STM32F412xE/G devices embed advanced peripherals:
+STM32F412xE/G devices are offered in 7 packages ranging from 48 to 144 pins. The set of available peripherals depends on the selected package.
+The STM32F412xE/G operates in the -40 to +125 °C temperature range from a 1.7 (PDR OFF) to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.
+These features make the STM32F412xE/G microcontrollers suitable for a wide range of applications.
 
-通过阅读快速上手章节开发者可以快速地上手该 BSP，将 RT-Thread 运行在开发板上。在进阶使用指南章节，将会介绍更多高级功能，帮助开发者利用 RT-Thread 驱动更多板载资源。
+#### KEY FEATURES
 
-## 开发板介绍
+- Dynamic Efficiency Line with BAM (Batch Acquisition Mode)
+- Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Flash memory, frequency up to 100 MHz, memory protection unit, 125 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
+- Memories
+  - Up to 1 Mbyte of Flash memory
+  - 256 Kbyte of SRAM
+  - Flexible external static memory controller with up to 16-bit data bus: SRAM, PSRAM, NOR Flash memory
+  - Dual mode Quad-SPI interface
+- LCD parallel interface, 8080/6800 modes
+- Clock, reset and supply management
+  - 1.7 V to 3.6 V application supply and I/Os
+  - POR, PDR, PVD and BOR
+  - 4-to-26 MHz crystal oscillator
+  - Internal 16 MHz factory-trimmed RC
+  - 32 kHz oscillator for RTC with calibration
+  - Internal 32 kHz RC with calibration
+- Power consumption
+  - Run: 112 μA/MHz (peripheral off)
+  - Stop (Flash in Stop mode, fast wakeup time): 50 μA Typ @ 25 °C; 75 μA max @25 °C
+  - Stop (Flash in Deep power down mode, slow wakeup time): down to 18 μA @ 25 °C; 40 μA max @25 °C
+  - Standby: 2.4 μA @25 °C / 1.7 V without RTC; 12 μA @85 °C @1.7 V
+  - VBAT supply for RTC: 1 μA @25 °C
+- 1×12-bit, 2.4 MSPS ADC: up to 16 channels
+- 2xdigital filters for sigma delta modulator, 4xPDM interfaces, stereo microphone support
+- General-purpose DMA: 16-stream DMA
 
-探索者 NUCLEO-F412ZG 是意法半导体推出的一款基于 ARM Cortex-M4 内核的开发板，最高主频为 100Mhz，该开发板具有丰富的板载资源，可以充分发挥 STM32F411ZG 的芯片性能。
-
-开发板外观如下图所示：
-
-![board](figures/board.png)
-
-该开发板常用 **板载资源** 如下：
-
-- MCU：STM32F412ZG，主频 100MHz，1024KB FLASH ，256KB RAM。
-- 常用外设
-  - LED：3 个，USB communication (LD1), user LED (LD2), power LED (LD3) 。
-  - 按键，2 个，USER and RESET 。
-- 常用接口：USB 支持 3 种不同接口：虚拟 COM 端口、大容量存储和调试端口。
-- 调试接口，板载 ST-LINK/V2-1 调试器。
-
-开发板更多详细信息请参考意法半导体 [NUCLEO-F412ZG 开发板介绍](https://www.st.com/en/evaluation-tools/nucleo-f412zg.html)。
-
-## 外设支持
-
-本 BSP 目前对外设的支持情况如下：
-
-| **片上外设** | **支持情况** |               **备注**                |
-| :------------ | :----------: | :-----------------------------------: |
-| GPIO         |     支持     | PA0, PA1... PH1 ---> PIN: 0, 1...63 |
-| UART         |     支持     |              UART2,UART3            |
-| Onchip Flash |     支持     |                                     |
-|  USB Device  |     支持     |                                     |
-
-## 使用说明
-
-使用说明分为如下两个章节：
-
-- 快速上手
-
-    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
-
-- 进阶使用
-
-    本章节是为需要在 RT-Thread 操作系统上使用更多开发板资源的开发者准备的。通过使用 ENV 工具对 BSP 进行配置，可以开启更多板载资源，实现更多高级功能。
+- Up to 17 timers: up to twelve 16-bit timers, two 32-bit timers up to 100 MHz each with up to four IC/OC/PWM or pulse counter and quadrature (incremental) encoder input, two watchdog timers (independent and window), one SysTick timer
+- Debug mode
+  - Serial wire debug (SWD) & JTAG
+  - Cortex®-M4 Embedded Trace Macrocell™
+- Up to 114 I/O ports with interrupt capability
+  - Up to 109 fast I/Os up to 100 MHz
+  - Up to 114 five V-tolerant I/Os
+- Up to 17 communication interfaces
+  - Up to 4xI2C interfaces (SMBus/PMBus)
+  - Up to 4 USARTs (2x12.5 Mbit/s, 2x6.25 Mbit/s), ISO 7816 interface, LIN, IrDA, modem control)
+  - Up to 5 SPI/I2Ss (up to 50 Mbit/s, SPI or I2S audio protocol), out of which 2 muxed full-duplex I2S interfaces
+  - SDIO interface (SD/MMC/eMMC)
+  - Advanced connectivity: USB 2.0 full-speed device/host/OTG controller with PHY
+  - 2xCAN (2.0B Active)
+- True random number generator
+- CRC calculation unit
+- 96-bit unique ID
+- RTC: subsecond accuracy, hardware calendar
+- All packages are ECOPACK®2
 
 
-### 快速上手
 
-本 BSP 为开发者提供 MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
+## Read more
 
-#### 硬件连接
+|                          Documents                           |                         Description                          |
+| :----------------------------------------------------------: | :----------------------------------------------------------: |
+| [STM32_Nucleo-144_BSP_Introduction](../docs/STM32_Nucleo-144_BSP_Introduction.md) | How to run RT-Thread on STM32 Nucleo-144 boards (**Must-Read**) |
+| [STM32F412ZG ST Official Website](https://www.st.com/en/microcontrollers-microprocessors/stm32f412zg.html#documentation) |          STM32F412ZG datasheet and other resources           |
 
-使用 Type-A to Micro-B 线连接开发板和 PC 供电，红色 LED LD3 (PWR) 和 LD1 (COM) 会点亮。
 
-#### 编译下载
 
-双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+## Maintained By
 
-> 工程默认配置使用 ST-LINK 下载程序，点击下载按钮即可下载程序到开发板。
+[flybreak](https://github.com/guozhanxin)  g1171407708@163.com
 
-#### 运行结果
 
-下载程序成功之后，系统会自动运行，观察开发板上 LED 的运行效果，红色 LD3 和 LD1 常亮、蓝色 LD2 会周期性闪烁。
 
-USB 虚拟 COM 端口默认连接串口 3，在终端工具里打开相应的串口（115200-8-1-N），复位设备后，可以看到 RT-Thread 的输出信息:
+## Translated By
 
-```bash
- \ | /
-- RT -     Thread Operating System
- / | \     4.0.2 build Oct 20 2019
- 2006 - 2019 Copyright by rt-thread team
-msh >
-```
-### 进阶使用
+Meco Man @ RT-Thread Community
 
-此 BSP 默认只开启了 GPIO 和 串口 3 的功能，更多高级功能需要利用 ENV 工具对 BSP 进行配置，步骤如下：
-
-1. 在 BSP 下打开 env 工具。
-
-2. 输入 `menuconfig` 命令配置工程，配置好之后保存退出。
-
-3. 输入 `pkgs --update` 命令更新软件包。
-
-4. 输入 `scons --target=mdk5/iar` 命令重新生成工程。
-
-本章节更多详细的介绍请参考 [STM32 系列 BSP 外设驱动使用教程](../docs/STM32 系列 BSP 外设驱动使用教程. md)。
-
-## 注意事项
-
-暂无
-
-## 联系人信息
-
-维护人:
-
-- [flybreak](https://github.com/guozhanxin) ，邮箱：<g1171407708@163.com>
+> jiantingman@foxmail.com 
+>
+> https://github.com/mysterywolf

bsp/stm32/stm32f412-st-nucleo/README_zh.md

@@ -0,0 +1,107 @@
+# NUCLEO-F412ZG 开发板 BSP 说明
+
+## 简介
+
+本文档为 RT-Thread 开发团队为 NUCLEO-F412ZG 开发板提供的 BSP (板级支持包) 说明。
+
+主要内容如下：
+
+- 开发板资源介绍
+- BSP 快速上手
+- 进阶使用方法
+
+通过阅读快速上手章节开发者可以快速地上手该 BSP，将 RT-Thread 运行在开发板上。在进阶使用指南章节，将会介绍更多高级功能，帮助开发者利用 RT-Thread 驱动更多板载资源。
+
+## 开发板介绍
+
+探索者 NUCLEO-F412ZG 是意法半导体推出的一款基于 ARM Cortex-M4 内核的开发板，最高主频为 100Mhz，该开发板具有丰富的板载资源，可以充分发挥 STM32F411ZG 的芯片性能。
+
+开发板外观如下图所示：
+
+![board](figures/board.png)
+
+该开发板常用 **板载资源** 如下：
+
+- MCU：STM32F412ZG，主频 100MHz，1024KB FLASH ，256KB RAM。
+- 常用外设
+  - LED：3 个，USB communication (LD1), user LED (LD2), power LED (LD3) 。
+  - 按键，2 个，USER and RESET 。
+- 常用接口：USB 支持 3 种不同接口：虚拟 COM 端口、大容量存储和调试端口。
+- 调试接口，板载 ST-LINK/V2-1 调试器。
+
+开发板更多详细信息请参考意法半导体 [NUCLEO-F412ZG 开发板介绍](https://www.st.com/en/evaluation-tools/nucleo-f412zg.html)。
+
+## 外设支持
+
+本 BSP 目前对外设的支持情况如下：
+
+| **片上外设** | **支持情况** |               **备注**                |
+| :------------ | :----------: | :-----------------------------------: |
+| GPIO         |     支持     | PA0, PA1... PH1 ---> PIN: 0, 1...63 |
+| UART         |     支持     |              UART2,UART3            |
+| Onchip Flash |     支持     |                                     |
+|  USB Device  |     支持     |                                     |
+
+## 使用说明
+
+使用说明分为如下两个章节：
+
+- 快速上手
+
+    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
+
+- 进阶使用
+
+    本章节是为需要在 RT-Thread 操作系统上使用更多开发板资源的开发者准备的。通过使用 ENV 工具对 BSP 进行配置，可以开启更多板载资源，实现更多高级功能。
+
+
+### 快速上手
+
+本 BSP 为开发者提供 MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
+
+#### 硬件连接
+
+使用 Type-A to Micro-B 线连接开发板和 PC 供电，红色 LED LD3 (PWR) 和 LD1 (COM) 会点亮。
+
+#### 编译下载
+
+双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+
+> 工程默认配置使用 ST-LINK 下载程序，点击下载按钮即可下载程序到开发板。
+
+#### 运行结果
+
+下载程序成功之后，系统会自动运行，观察开发板上 LED 的运行效果，红色 LD3 和 LD1 常亮、蓝色 LD2 会周期性闪烁。
+
+USB 虚拟 COM 端口默认连接串口 3，在终端工具里打开相应的串口（115200-8-1-N），复位设备后，可以看到 RT-Thread 的输出信息:
+
+```bash
+ \ | /
+- RT -     Thread Operating System
+ / | \     4.0.2 build Oct 20 2019
+ 2006 - 2019 Copyright by rt-thread team
+msh >
+```
+### 进阶使用
+
+此 BSP 默认只开启了 GPIO 和 串口 3 的功能，更多高级功能需要利用 ENV 工具对 BSP 进行配置，步骤如下：
+
+1. 在 BSP 下打开 env 工具。
+
+2. 输入 `menuconfig` 命令配置工程，配置好之后保存退出。
+
+3. 输入 `pkgs --update` 命令更新软件包。
+
+4. 输入 `scons --target=mdk5/iar` 命令重新生成工程。
+
+本章节更多详细的介绍请参考 [STM32 系列 BSP 外设驱动使用教程](../docs/STM32 系列 BSP 外设驱动使用教程. md)。
+
+## 注意事项
+
+暂无
+
+## 联系人信息
+
+维护人:
+
+- [flybreak](https://github.com/guozhanxin) ，邮箱：<g1171407708@163.com>

bsp/stm32/stm32f413-st-nucleo/README.md

@@ -1,122 +1,88 @@
-# NUCLEO-F413ZH 开发板 BSP 说明
+# STM32F413-Nucleo BSP Introduction
 
-## 简介
+[中文](README_zh.md) 
 
-本文档为 RT-Thread 开发团队为 NUCLEO-F413ZH 开发板的 BSP (板级支持包) 说明。
+## MCU: STM32F413ZH @100MHz, 1.5 MB FLASH,  320KB RAM
 
-主要内容如下：
+The STM32F413xG/H devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 100 MHz. Their Cortex®-M4 core features a Floating point unit (FPU) single precision which supports all Arm single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.
 
-- 开发板资源介绍
-- BSP 快速上手
-- 进阶使用方法
+The STM32F413xG/H devices belong to the STM32F4 access product lines (with products combining power efficiency, performance and integration) while adding a new innovative feature called Batch Acquisition Mode (BAM) allowing to save even more power consumption during data batching.
+The STM32F413xG/H devices incorporate high-speed embedded memories (up to 1.5 Mbytes of Flash memory, 320 Kbytes of SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB buses, three AHB buses and a 32-bit multi-AHB bus matrix.
+All devices offer a 12-bit ADC, two 12-bit DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timer for motor control, two general-purpose 32-bit timers and a low power timer.
+They also feature standard and advanced communication interfaces.
 
-通过阅读快速上手章节开发者可以快速地上手该 BSP，将 RT-Thread 运行在开发板上。在进阶使用指南章节，将会介绍更多高级功能，帮助开发者利用 RT-Thread 驱动更多板载资源。
+#### KEY FEATURES
 
-## 开发板介绍
+- Dynamic Efficiency Line with eBAM (enhanced Batch Acquisition Mode)
+  - 1.7 V to 3.6 V power supply
+  - -40 °C to 85/105/125 °C temperature range
+- Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Flash memory, frequency up to 100 MHz, memory protection unit, 125 DMIPS/ 1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
+- Memories
+  - Up to 1.5 Mbytes of Flash memory
+  - 320 Kbytes of SRAM
+  - Flexible external static memory controller with up to 16-bit data bus: SRAM, PSRAM, NOR Flash memory
+  - Dual mode Quad-SPI interface
+- LCD parallel interface, 8080/6800 modes
+- Clock, reset and supply management
+  - 1.7 to 3.6 V application supply and I/Os
+  - POR, PDR, PVD and BOR
+  - 4-to-26 MHz crystal oscillator
+  - Internal 16 MHz factory-trimmed RC
+  - 32 kHz oscillator for RTC with calibration
+  - Internal 32 kHz RC with calibration
+- Power consumption
+  - Run: 112 μA/MHz (peripheral off)
+  - Stop (Flash in Stop mode, fast wakeup time): 42 μA Typ.; 80 μA max @25 °C
+  - Stop (Flash in Deep power down mode, slow wakeup time): 15 μA Typ.; 46 μA max @25 °C
+  - Standby without RTC: 1.1 μA Typ.; 14.7 μA max at @85 °C
+  - VBAT supply for RTC: 1 μA @25 °C
+- 2x12-bit D/A converters
+- 1×12-bit, 2.4 MSPS ADC: up to 16 channels
+- 6x digital filters for sigma delta modulator, 12x PDM interfaces, with stereo microphone and sound source localization support
+- General-purpose DMA: 16-stream DMA
 
-探索者 NUCLEO-F413ZH 是意法半导体推出的一款基于 ARM Cortex-M4 内核的开发板，最高主频为 100Mhz，该开发板具有丰富的板载资源，可以充分发挥 NUCLEO-F413ZH 的芯片性能。
-
-开发板外观如下图所示：
-
-![board](figures/board.png)
-
-该开发板常用 **板载资源** 如下：
-
-- MCU：STM32F413ZH，主频 100MHz，1536KB FLASH ，320KB RAM
-- 常用外设
-  - LED：8个，user LED (JP5跳帽需连接)(黄色，PB0，LD1；蓝色，PB7，LD2；红色，PB14，LD3), USB communication (LD4), over current (LD5), power LED (黄色，LD6), USB FAULT (LD7), VBUS (LD8)。
-  - 按键：2个，B1（USER，PC13），B2（RESET）
-- 常用接口：USB 支持 3 种不同接口：虚拟 COM 端口、大容量存储和调试端口等。
-- 调试接口，板载 ST-LINK/V2-1 调试器。
-
-开发板更多详细信息请参考意法半导体 [NUCLEO-F413ZH 开发板介绍](https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-mpu-eval-tools/stm32-mcu-mpu-eval-tools/stm32-nucleo-boards/nucleo-f413zh.html)。
-
-## 外设支持
-
-本 BSP 目前对外设的支持情况如下：
-
-| **板载外设** | **支持情况** | **备注**                              |
-| :------------ | :----------: | :-----------------------------------: |
-|STLINK TO USART|     支持    |                  UART3                 |
-
-| **片上外设** | **支持情况** |               **备注**                |
-| :------------ | :----------: | :-----------------------------------: |
-| GPIO         |     支持     |                                        |
-| UART         |     支持     |              UART2/3                   |
-| SPI          |     支持     |              SPI2                      |
-| I2C          |     支持     |              I2C1(软件模拟)            |
-| TIMER        |     支持     |              TIM11/13/14               |
-| PWM          |     支持     |              PWM2_CH4                  |
-| ADC          |     支持     |              ADC1_IN5                  |
-| RTC          |     支持     |     支持外部晶振和内部低速时钟         |
-| WDT          |     支持     |             独立看门狗                 |
-| Onchip Flash |     支持     |             片上Flash                  |
-| USB OTG_FS   |     支持     |         OTGFS as USB device            |
-| Onchip Flash |     支持     |             片上Flash                  |
-| USB Device   |     支持     |         OTGFS as USB device            |
-| RNG          |     支持     |       Random Number Generator          |
-| UDID         |     支持     |     Unique Device Identifier           |
-
-## 使用说明
-
-使用说明分为如下两个章节：
-
-- 快速上手
-
-    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
-
-- 进阶使用
-
-    本章节是为需要在 RT-Thread 操作系统上使用更多开发板资源的开发者准备的。通过使用 ENV 工具对 BSP 进行配置，可以开启更多板载资源，实现更多高级功能。
+- Up to 18 timers: up to twelve 16-bit timers, two 32-bit timers up to 100 MHz each with up to four IC/OC/PWM or pulse counter and quadrature (incremental) encoder input, two watchdog timers (independent and window), one SysTick timer, and a low-power timer
+- Debug mode
+  - Serial wire debug (SWD) & JTAG
+  - Cortex®-M4 Embedded Trace Macrocell™
+- Up to 114 I/O ports with interrupt capability
+  - Up to 109 fast I/Os up to 100 MHz
+  - Up to 114 five V-tolerant I/Os
+- Up to 24 communication interfaces
+  - Up to 4x I2C interfaces (SMBus/PMBus)
+  - Up to 10 UARTS: 4 USARTs / 6 UARTs (2 x 12.5 Mbit/s, 2 x 6.25 Mbit/s), ISO 7816 interface, LIN, IrDA, modem control)
+  - Up to 5 SPI/I2Ss (up to 50 Mbit/s, SPI or I2S audio protocol), out of which 2 muxed full-duplex I2S interfaces
+  - SDIO interface (SD/MMC/eMMC)
+  - Advanced connectivity: USB 2.0 full-speed device/host/OTG controller with PHY
+  - 3x CAN (2.0B Active)
+  - 1xSAI
+- True random number generator
+- CRC calculation unit
+- 96-bit unique ID
+- RTC: subsecond accuracy, hardware calendar
+- All packages are ECOPACK®2
 
 
-### 快速上手
 
-本 BSP 为开发者提供 MDK4、MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
+## Read more
 
-#### 硬件连接
+|                          Documents                           |                         Description                          |
+| :----------------------------------------------------------: | :----------------------------------------------------------: |
+| [STM32_Nucleo-144_BSP_Introduction](../docs/STM32_Nucleo-144_BSP_Introduction.md) | How to run RT-Thread on STM32 Nucleo-144 boards (**Must-Read**) |
+| [STM32F413ZH ST Official Website](https://www.st.com/zh/microcontrollers-microprocessors/stm32f413zh.html#documentation) |          STM32F413ZH datasheet and other resources           |
 
-使用 Type-A to Micro-B 线连接开发板和 PC 供电，黄色 LED LD6 (PWR) 和 LD4 (COM) 会点亮。
 
-#### 编译下载
 
-双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+## Maintained By
 
-> 工程默认配置使用 板载ST-LINK 仿真器下载程序，在通过 Micro USB线 连接开发板的基础上，点击下载按钮即可下载程序到开发板
+[flybreak](https://github.com/guozhanxin)  g1171407708@163.com
 
-#### 运行结果
 
-下载程序成功之后，系统会自动运行，在JP5跳帽连接时，观察开发板上LD1的运行效果，黄色LED会周期性闪烁。
 
-连接开发板对应串口到 PC , 在终端工具里打开相应的串口（115200-8-1-N），复位设备后，可以看到 RT-Thread 的输出信息:
+## Translated By
 
-```bash
- \ | /
-- RT -     Thread Operating System
- / | \     4.0.3 build Apr 28 2020
- 2006 - 2020 Copyright by rt-thread team
-msh >
-```
-### 进阶使用
+Meco Man @ RT-Thread Community
 
-此 BSP 默认只开启了 GPIO 和 UART3 的功能，更多高级功能需要利用 ENV 工具对 BSP 进行配置，步骤如下：
-
-1. 在 bsp 下打开 env 工具。
-
-2. 输入`menuconfig`命令配置工程，配置好之后保存退出。
-
-3. 输入`pkgs --update`命令更新软件包。
-
-4. 输入`scons --target=mdk4/mdk5/iar` 命令重新生成工程。
-
-本章节更多详细的介绍请参考 [STM32 系列 BSP 外设驱动使用教程](../docs/STM32系列BSP外设驱动使用教程.md)。
-
-## 注意事项
-
-暂无
-
-## 联系人信息
-
-维护人:
-
-- [flybreak](https://github.com/XYX12306) ，邮箱：<2669599387@qq.com>
+> jiantingman@foxmail.com 
+>
+> https://github.com/mysterywolf

bsp/stm32/stm32f413-st-nucleo/README_zh.md

@@ -0,0 +1,122 @@
+# NUCLEO-F413ZH 开发板 BSP 说明
+
+## 简介
+
+本文档为 RT-Thread 开发团队为 NUCLEO-F413ZH 开发板的 BSP (板级支持包) 说明。
+
+主要内容如下：
+
+- 开发板资源介绍
+- BSP 快速上手
+- 进阶使用方法
+
+通过阅读快速上手章节开发者可以快速地上手该 BSP，将 RT-Thread 运行在开发板上。在进阶使用指南章节，将会介绍更多高级功能，帮助开发者利用 RT-Thread 驱动更多板载资源。
+
+## 开发板介绍
+
+探索者 NUCLEO-F413ZH 是意法半导体推出的一款基于 ARM Cortex-M4 内核的开发板，最高主频为 100Mhz，该开发板具有丰富的板载资源，可以充分发挥 NUCLEO-F413ZH 的芯片性能。
+
+开发板外观如下图所示：
+
+![board](figures/board.png)
+
+该开发板常用 **板载资源** 如下：
+
+- MCU：STM32F413ZH，主频 100MHz，1536KB FLASH ，320KB RAM
+- 常用外设
+  - LED：8个，user LED (JP5跳帽需连接)(黄色，PB0，LD1；蓝色，PB7，LD2；红色，PB14，LD3), USB communication (LD4), over current (LD5), power LED (黄色，LD6), USB FAULT (LD7), VBUS (LD8)。
+  - 按键：2个，B1（USER，PC13），B2（RESET）
+- 常用接口：USB 支持 3 种不同接口：虚拟 COM 端口、大容量存储和调试端口等。
+- 调试接口，板载 ST-LINK/V2-1 调试器。
+
+开发板更多详细信息请参考意法半导体 [NUCLEO-F413ZH 开发板介绍](https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-mpu-eval-tools/stm32-mcu-mpu-eval-tools/stm32-nucleo-boards/nucleo-f413zh.html)。
+
+## 外设支持
+
+本 BSP 目前对外设的支持情况如下：
+
+| **板载外设** | **支持情况** | **备注**                              |
+| :------------ | :----------: | :-----------------------------------: |
+|STLINK TO USART|     支持    |                  UART3                 |
+
+| **片上外设** | **支持情况** |               **备注**                |
+| :------------ | :----------: | :-----------------------------------: |
+| GPIO         |     支持     |                                        |
+| UART         |     支持     |              UART2/3                   |
+| SPI          |     支持     |              SPI2                      |
+| I2C          |     支持     |              I2C1(软件模拟)            |
+| TIMER        |     支持     |              TIM11/13/14               |
+| PWM          |     支持     |              PWM2_CH4                  |
+| ADC          |     支持     |              ADC1_IN5                  |
+| RTC          |     支持     |     支持外部晶振和内部低速时钟         |
+| WDT          |     支持     |             独立看门狗                 |
+| Onchip Flash |     支持     |             片上Flash                  |
+| USB OTG_FS   |     支持     |         OTGFS as USB device            |
+| Onchip Flash |     支持     |             片上Flash                  |
+| USB Device   |     支持     |         OTGFS as USB device            |
+| RNG          |     支持     |       Random Number Generator          |
+| UDID         |     支持     |     Unique Device Identifier           |
+
+## 使用说明
+
+使用说明分为如下两个章节：
+
+- 快速上手
+
+    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
+
+- 进阶使用
+
+    本章节是为需要在 RT-Thread 操作系统上使用更多开发板资源的开发者准备的。通过使用 ENV 工具对 BSP 进行配置，可以开启更多板载资源，实现更多高级功能。
+
+
+### 快速上手
+
+本 BSP 为开发者提供 MDK4、MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
+
+#### 硬件连接
+
+使用 Type-A to Micro-B 线连接开发板和 PC 供电，黄色 LED LD6 (PWR) 和 LD4 (COM) 会点亮。
+
+#### 编译下载
+
+双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+
+> 工程默认配置使用 板载ST-LINK 仿真器下载程序，在通过 Micro USB线 连接开发板的基础上，点击下载按钮即可下载程序到开发板
+
+#### 运行结果
+
+下载程序成功之后，系统会自动运行，在JP5跳帽连接时，观察开发板上LD1的运行效果，黄色LED会周期性闪烁。
+
+连接开发板对应串口到 PC , 在终端工具里打开相应的串口（115200-8-1-N），复位设备后，可以看到 RT-Thread 的输出信息:
+
+```bash
+ \ | /
+- RT -     Thread Operating System
+ / | \     4.0.3 build Apr 28 2020
+ 2006 - 2020 Copyright by rt-thread team
+msh >
+```
+### 进阶使用
+
+此 BSP 默认只开启了 GPIO 和 UART3 的功能，更多高级功能需要利用 ENV 工具对 BSP 进行配置，步骤如下：
+
+1. 在 bsp 下打开 env 工具。
+
+2. 输入`menuconfig`命令配置工程，配置好之后保存退出。
+
+3. 输入`pkgs --update`命令更新软件包。
+
+4. 输入`scons --target=mdk4/mdk5/iar` 命令重新生成工程。
+
+本章节更多详细的介绍请参考 [STM32 系列 BSP 外设驱动使用教程](../docs/STM32系列BSP外设驱动使用教程.md)。
+
+## 注意事项
+
+暂无
+
+## 联系人信息
+
+维护人:
+
+- [flybreak](https://github.com/XYX12306) ，邮箱：<2669599387@qq.com>

bsp/stm32/stm32f429-st-disco/.config

@@ -135,6 +135,7 @@ CONFIG_RT_USING_I2C=y
 # CONFIG_RT_I2C_DEBUG is not set
 CONFIG_RT_USING_I2C_BITOPS=y
 # CONFIG_RT_I2C_BITOPS_DEBUG is not set
+# CONFIG_RT_USING_PHY is not set
 CONFIG_RT_USING_PIN=y
 # CONFIG_RT_USING_ADC is not set
 # CONFIG_RT_USING_DAC is not set
@@ -145,6 +146,11 @@ CONFIG_RT_USING_PIN=y
 # CONFIG_RT_USING_RTC is not set
 # CONFIG_RT_USING_SDIO is not set
 CONFIG_RT_USING_SPI=y
+# CONFIG_RT_USING_QSPI is not set
+# CONFIG_RT_USING_SPI_MSD is not set
+# CONFIG_RT_USING_SFUD is not set
+# CONFIG_RT_USING_ENC28J60 is not set
+# CONFIG_RT_USING_SPI_WIFI is not set
 # CONFIG_RT_USING_WDT is not set
 # CONFIG_RT_USING_AUDIO is not set
 # CONFIG_RT_USING_SENSOR is not set
@@ -164,11 +170,11 @@ CONFIG_RT_USING_SPI=y
 # POSIX layer and C standard library
 #
 CONFIG_RT_USING_LIBC=y
-CONFIG_RT_USING_PTHREADS=y
-CONFIG_PTHREAD_NUM_MAX=8
+# CONFIG_RT_USING_PTHREADS is not set
 CONFIG_RT_USING_POSIX=y
 # CONFIG_RT_USING_POSIX_MMAP is not set
 # CONFIG_RT_USING_POSIX_TERMIOS is not set
+# CONFIG_RT_USING_POSIX_GETLINE is not set
 # CONFIG_RT_USING_POSIX_AIO is not set
 # CONFIG_RT_USING_MODULE is not set
 
@@ -287,6 +293,9 @@ CONFIG_RT_USING_POSIX=y
 # CONFIG_PKG_USING_RT_CJSON_TOOLS is not set
 # CONFIG_PKG_USING_AGILE_TELNET is not set
 # CONFIG_PKG_USING_NMEALIB is not set
+# CONFIG_PKG_USING_AGILE_JSMN is not set
+# CONFIG_PKG_USING_PDULIB is not set
+# CONFIG_PKG_USING_BTSTACK is not set
 
 #
 # security packages
@@ -312,6 +321,7 @@ CONFIG_RT_USING_POSIX=y
 # CONFIG_PKG_USING_STEMWIN is not set
 # CONFIG_PKG_USING_WAVPLAYER is not set
 # CONFIG_PKG_USING_TJPGD is not set
+# CONFIG_PKG_USING_HELIX is not set
 
 #
 # tools packages
@@ -332,6 +342,7 @@ CONFIG_RT_USING_POSIX=y
 # CONFIG_PKG_USING_BS8116A is not set
 # CONFIG_PKG_USING_GPS_RMC is not set
 # CONFIG_PKG_USING_URLENCODE is not set
+# CONFIG_PKG_USING_UMCN is not set
 
 #
 # system packages
@@ -359,6 +370,8 @@ CONFIG_RT_USING_POSIX=y
 # CONFIG_PKG_USING_RAMDISK is not set
 # CONFIG_PKG_USING_MININI is not set
 # CONFIG_PKG_USING_QBOOT is not set
+# CONFIG_PKG_USING_UCOSIII_WRAPPER is not set
+# CONFIG_PKG_USING_PPOOL is not set
 
 #
 # peripheral libraries and drivers
@@ -409,6 +422,10 @@ CONFIG_RT_USING_POSIX=y
 # CONFIG_PKG_USING_QLED is not set
 # CONFIG_PKG_USING_PAJ7620 is not set
 # CONFIG_PKG_USING_AGILE_CONSOLE is not set
+# CONFIG_PKG_USING_LD3320 is not set
+# CONFIG_PKG_USING_WK2124 is not set
+# CONFIG_PKG_USING_LY68L6400 is not set
+# CONFIG_PKG_USING_DM9051 is not set
 
 #
 # miscellaneous packages
@@ -446,39 +463,10 @@ CONFIG_RT_USING_POSIX=y
 # CONFIG_PKG_USING_ULAPACK is not set
 # CONFIG_PKG_USING_UKAL is not set
 # CONFIG_PKG_USING_CRCLIB is not set
-
-#
-# Privated Packages of RealThread
-#
-# CONFIG_PKG_USING_CODEC is not set
-# CONFIG_PKG_USING_PLAYER is not set
-# CONFIG_PKG_USING_MPLAYER is not set
-# CONFIG_PKG_USING_PERSIMMON_SRC is not set
-# CONFIG_PKG_USING_JS_PERSIMMON is not set
-# CONFIG_PKG_USING_JERRYSCRIPT_WIN32 is not set
-
-#
-# Network Utilities
-#
-# CONFIG_PKG_USING_WICED is not set
-# CONFIG_PKG_USING_CLOUDSDK is not set
-# CONFIG_PKG_USING_POWER_MANAGER is not set
-# CONFIG_PKG_USING_RT_OTA is not set
-# CONFIG_PKG_USING_RDBD_SRC is not set
-# CONFIG_PKG_USING_RTINSIGHT is not set
-# CONFIG_PKG_USING_SMARTCONFIG is not set
-# CONFIG_PKG_USING_RTX is not set
-# CONFIG_RT_USING_TESTCASE is not set
-# CONFIG_PKG_USING_NGHTTP2 is not set
-# CONFIG_PKG_USING_AVS is not set
-# CONFIG_PKG_USING_ALI_LINKKIT is not set
-# CONFIG_PKG_USING_STS is not set
-# CONFIG_PKG_USING_DLMS is not set
-# CONFIG_PKG_USING_AUDIO_FRAMEWORK is not set
-# CONFIG_PKG_USING_ZBAR is not set
-# CONFIG_PKG_USING_MCF is not set
-# CONFIG_PKG_USING_URPC is not set
-# CONFIG_PKG_USING_BSAL is not set
+# CONFIG_PKG_USING_THREES is not set
+# CONFIG_PKG_USING_2048 is not set
+# CONFIG_PKG_USING_LWGPS is not set
+# CONFIG_PKG_USING_TENSORFLOWLITEMICRO is not set
 CONFIG_SOC_FAMILY_STM32=y
 CONFIG_SOC_SERIES_STM32F4=y
 

bsp/stm32/stm32f429-st-disco/board/linker_scripts/link.icf

@@ -5,7 +5,7 @@
 define symbol __ICFEDIT_intvec_start__ = 0x08000000;
 /*-Memory Regions-*/
 define symbol __ICFEDIT_region_ROM_start__ = 0x08000000;
-define symbol __ICFEDIT_region_ROM_end__   = 0x080FFFFF;
+define symbol __ICFEDIT_region_ROM_end__   = 0x081FFFFF;
 define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;
 define symbol __ICFEDIT_region_RAM_end__   = 0x2002FFFF;
 /*-Sizes-*/

bsp/stm32/stm32f429-st-disco/board/linker_scripts/link.lds

@@ -1,5 +1,5 @@
 /*
- * linker script for STM32F4xx with GNU ld
+ * linker script for STM32F429xx with GNU ld
  * bernard.xiong 2009-10-14
  */
 
@@ -7,7 +7,7 @@
 MEMORY
 {
     ROM (rx) : ORIGIN = 0x08000000, LENGTH = 2048k /* 2048KB flash */
-    RAM (rw) : ORIGIN = 0x20000000, LENGTH =  320k /* 320K sram */
+    RAM (rw) : ORIGIN = 0x20000000, LENGTH =  192k /* 192K sram */
 }
 ENTRY(Reset_Handler)
 _system_stack_size = 0x200;

bsp/stm32/stm32f429-st-disco/board/linker_scripts/link.sct

@@ -2,13 +2,13 @@
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x08000000 0x00100000  {    ; load region size_region
-  ER_IROM1 0x08000000 0x00100000  {  ; load address = execution address
+LR_IROM1 0x08000000 0x00200000  {    ; load region size_region
+  ER_IROM1 0x08000000 0x00200000  {  ; load address = execution address
    *.o (RESET, +First)
    *(InRoot$$Sections)
    .ANY (+RO)
   }
-  RW_IRAM1 0x20000000 0x00020000  {  ; RW data
+  RW_IRAM1 0x20000000 0x00030000  {  ; RW data
    .ANY (+RW +ZI)
   }
 }

bsp/stm32/stm32f429-st-disco/rtconfig.h

@@ -93,14 +93,13 @@
 #define RT_USING_I2C_BITOPS
 #define RT_USING_PIN
 #define RT_USING_SPI
+
 /* Using USB */
 
 
 /* POSIX layer and C standard library */
 
 #define RT_USING_LIBC
-#define RT_USING_PTHREADS
-#define PTHREAD_NUM_MAX 8
 #define RT_USING_POSIX
 
 /* Network */
@@ -162,12 +161,6 @@
 
 /* samples: kernel and components samples */
 
-
-/* Privated Packages of RealThread */
-
-
-/* Network Utilities */
-
 #define SOC_FAMILY_STM32
 #define SOC_SERIES_STM32F4
 

bsp/stm32/stm32f429-st-disco/stm32_rom.ld

@@ -1,13 +1,13 @@
 /*
- * linker script for STM32F10x with GNU ld
+ * linker script for STM32F429xx with GNU ld
  * bernard.xiong 2009-10-14
  */
 
 /* Program Entry, set to mark it as "used" and avoid gc */
 MEMORY
 {
-    CODE (rx) : ORIGIN = 0x08000000, LENGTH = 1024k /* 1024KB flash */
-    DATA (rw) : ORIGIN = 0x20000000, LENGTH =  128k /* 128K sram */
+    CODE (rx) : ORIGIN = 0x08000000, LENGTH = 2048k /* 1024KB flash */
+    DATA (rw) : ORIGIN = 0x20000000, LENGTH =  192k /* 128K sram */
 }
 ENTRY(Reset_Handler)
 _system_stack_size = 0x200;

bsp/stm32/stm32f429-st-disco/stm32_rom.sct

@@ -2,13 +2,13 @@
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x08000000 0x00100000  {    ; load region size_region
-  ER_IROM1 0x08000000 0x00100000  {  ; load address = execution address
+LR_IROM1 0x08000000 0x00200000  {    ; load region size_region
+  ER_IROM1 0x08000000 0x00200000  {  ; load address = execution address
    *.o (RESET, +First)
    *(InRoot$$Sections)
    .ANY (+RO)
   }
-  RW_IRAM1 0x20000000 0x00020000  {  ; RW data
+  RW_IRAM1 0x20000000 0x00030000  {  ; RW data
    .ANY (+RW +ZI)
   }
 }

bsp/stm32/stm32f429-st-disco/stm32f429_flash.icf

@@ -2,10 +2,10 @@
 /*-Editor annotation file-*/
 /* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
 /*-Specials-*/
-define symbol __ICFEDIT_intvec_start__ = 0x08000000;
+define symbol __ICFEDIT_intvec_start__ = 0x08000000;
 /*-Memory Regions-*/
-define symbol __ICFEDIT_region_ROM_start__ = 0x08000000;
-define symbol __ICFEDIT_region_ROM_end__   = 0x080FFFFF;
+define symbol __ICFEDIT_region_ROM_start__ = 0x08000000;
+define symbol __ICFEDIT_region_ROM_end__   = 0x081FFFFF;
 define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;
 define symbol __ICFEDIT_region_RAM_end__   = 0x2002FFFF;
 /*-Sizes-*/

bsp/stm32/stm32f446-st-nucleo/README.md

@@ -1,106 +1,84 @@
-# NUCLEO-F446ZE 开发板 BSP 说明
+# STM32F446-Nucleo BSP Introduction
 
-## 简介
+[中文](README_zh.md) 
 
-本文档为 NUCLEO-F446ZE 开发板的 BSP (板级支持包) 说明。
+## MCU: STM32F446ZE @180MHz, 512KB FLASH,  128KB RAM
 
-主要内容如下：
+The STM32F446xC/E devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 180 MHz. The Cortex-M4 core features a floating point unit (FPU) single precision supporting all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) that enhances application security.
 
-- 开发板资源介绍
-- BSP 快速上手
-- 进阶使用方法
+The STM32F446xC/E devices incorporate high-speed embedded memories (Flash memory up to 512 Kbytes, up to 128 Kbytes of SRAM), up to 4 Kbytes of backup SRAM, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.
+All devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers.
+They also feature standard and advanced communication interfaces.
 
-通过阅读快速上手章节开发者可以快速地上手该 BSP，将 RT-Thread 运行在开发板上。在进阶使用指南章节，将会介绍更多高级功能，帮助开发者利用 RT-Thread 驱动更多板载资源。
+#### KEY FEATURES
 
-## 开发板介绍
+- Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait state execution from Flash memory, frequency up to 180 MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
+- Memories
+  - 512 Kbytes of Flash memory
+  - 128 Kbytes of SRAM
+  - Flexible external memory controller with up to 16-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND Flash memories
+  - Dual mode QuadSPI interface
+- LCD parallel interface, 8080/6800 modes
+- Clock, reset and supply management
+  - 1.7 V to 3.6 V application supply and I/Os
+  - POR, PDR, PVD and BOR
+  - 4 to 26 MHz crystal oscillator
+  - Internal 16 MHz factory-trimmed RC (1% accuracy)
+  - 32 kHz oscillator for RTC with calibration
+  - Internal 32 kHz RC with calibration
+- Low power
+  - Sleep, Stop and Standby modes
+  - VBAT supply for RTC, 20×32 bit backup registers plus optional 4 KB backup SRAM
+- 3× 12-bit, 2.4 MSPS ADC: up to 24 channels and 7.2 MSPS in triple interleaved mode
+- 2× 12-bit D/A converters
+- General-purpose DMA: 16-stream DMA controller with FIFOs and burst support
+- Up to 17 timers: 2x watchdog, 1x SysTick timer and up to twelve 16-bit and two 32-bit timers up to 180 MHz, each with up to four IC/OC/PWM or pulse counter
 
-NUCLEO-F446ZE 是 ST 公司推出的一款针对 STM32F4 系列设计的 Cortex-M4 Nucleo-144 开发板，支持 mbed，兼容 Arduino、还带有ST Zio和 ST Morpho 扩展接口，可连接微控制器的所有周边外设。
-
-开发板外观如下图所示：
-
-![board](figures/board.jpg)
-
-该开发板常用 **板载资源** 如下：
-
-- MCU：STM32f446ZE，主频 180MHz，512KB FLASH ，128KB RAM
-- 常用外设
-  - LED：3个，LED1 (绿色，PB0),LED2（蓝色，PB7），LED3（红色，PB14）
-- 常用接口：USB 转串口
-- 调试接口，标准 ST-LINK/SWD
-
-开发板更多详细信息请参考【NUCLEO-F446ZE】 [开发板介绍](https://www.st.com/zh/evaluation-tools/nucleo-f446ze.html)。
-
-## 外设支持
-
-本 BSP 目前对外设的支持情况如下：
-
-| **板载外设**      | **支持情况** | **备注**                              |
-| :----------------- | :----------: | :------------------------------------- |
-| USB 转串口        |     支持     |                                       |
-| **片上外设**      | **支持情况** | **备注**                              |
-| GPIO              |     支持     |                                       |
-| UART              |     支持     | UART1                                 |
-
-## 使用说明
-
-使用说明分为如下两个章节：
-
-- 快速上手
-
-    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
-
-- 进阶使用
-
-    本章节是为需要在 RT-Thread 操作系统上使用更多开发板资源的开发者准备的。通过使用 ENV 工具对 BSP 进行配置，可以开启更多板载资源，实现更多高级功能。
+- Debug mode
+  - SWD and JTAG interfaces
+  - Cortex®-M4 Trace Macrocell™
+- Up to 114 I/O ports with interrupt capability
+  - Up to 111 fast I/Os up to 90 MHz
+  - Up to 112 5 V-tolerant I/Os
+- Up to 20 communication interfaces
+  - SPDIF-Rx
+  - Up to 4× I2C interfaces (SMBus/PMBus)
+  - Up to four USARTs and two UARTs (11.25 Mbit/s, ISO7816 interface, LIN, IrDA, modem control)
+  - Up to four SPIs (45 Mbits/s), three with muxed I2S for audio class accuracy via internal audio PLL or external clock
+  - 2x SAI (serial audio interface)
+  - 2× CAN (2.0B Active)
+  - SDIO interface
+  - Consumer electronics control (CEC) I/F
+- Advanced connectivity
+  - USB 2.0 full-speed device/host/OTG controller with on-chip PHY
+  - USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI
+  - Dedicated USB power rail enabling on-chip PHYs operation throughout the entire MCU power supply range
+- 8- to 14-bit parallel camera interface up to 54 Mbytes/s
+- CRC calculation unit
+- RTC: subsecond accuracy, hardware calendar
+- 96-bit unique ID
 
 
-### 快速上手
 
-本 BSP 为开发者提供 MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
+## Read more
 
-#### 硬件连接
+|                          Documents                           |                         Description                          |
+| :----------------------------------------------------------: | :----------------------------------------------------------: |
+| [STM32_Nucleo-144_BSP_Introduction](../docs/STM32_Nucleo-144_BSP_Introduction.md) | How to run RT-Thread on STM32 Nucleo-144 boards (**Must-Read**) |
+| [STM32F446ZE ST Official Website](https://www.st.com/content/st_com/en/products/microcontrollers-microprocessors/stm32-32-bit-arm-cortex-mcus/stm32-high-performance-mcus/stm32f4-series/stm32f446/stm32f446ze.html#documentation) |          STM32F446ZE datasheet and other resources           |
 
-使用数据线连接开发板到 PC，通过数据线对开发板供电,下载,调试。
 
-#### 编译下载
 
-双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+## Maintained By
 
-> 工程默认配置使用 ST-LINK 仿真器下载程序，在通过 ST-LINK 连接开发板的基础上，点击下载按钮即可下载程序到开发板
+qihengchuan8888@163.com
 
-#### 运行结果
 
-下载程序成功之后，系统会自动运行，蓝色的 LED2 以 500MS 周期闪烁。
 
-连接开发板对应串口到 PC , 在终端工具里打开相应的串口（115200-8-1-N），复位设备后，可以看到 RT-Thread 的输出信息:
+## Translated By
 
-```bash
- \ | /
-- RT -     Thread Operating System
- / | \     4.0.0 build Jan  7 2019
- 2006 - 2018 Copyright by rt-thread team
-msh >
-```
-### 进阶使用
+Meco Man @ RT-Thread Community
 
-此 BSP 默认只开启了 GPIO 和 串口1 的功能，如果需使用 SD 卡、Flash 等更多高级功能，需要利用 ENV 工具对BSP 进行配置，步骤如下：
-
-1. 在 bsp 下打开 env 工具。
-
-2. 输入`menuconfig`命令配置工程，配置好之后保存退出。
-
-3. 输入`pkgs --update`命令更新软件包。
-
-4. 输入`scons --target=mdk4/mdk5/iar` 命令重新生成工程。
-
-本章节更多详细的介绍请参考 [STM32 系列 BSP 外设驱动使用教程](../docs/STM32系列BSP外设驱动使用教程.md)。
-
-## 注意事项
-
-- 默认终端输出设备是 UART1
-
-## 联系人信息
-
-维护人:
-
--   邮箱：<qihengchuan8888@163.com>
+> jiantingman@foxmail.com 
+>
+> https://github.com/mysterywolf

bsp/stm32/stm32f446-st-nucleo/README_zh.md

@@ -0,0 +1,106 @@
+# NUCLEO-F446ZE 开发板 BSP 说明
+
+## 简介
+
+本文档为 NUCLEO-F446ZE 开发板的 BSP (板级支持包) 说明。
+
+主要内容如下：
+
+- 开发板资源介绍
+- BSP 快速上手
+- 进阶使用方法
+
+通过阅读快速上手章节开发者可以快速地上手该 BSP，将 RT-Thread 运行在开发板上。在进阶使用指南章节，将会介绍更多高级功能，帮助开发者利用 RT-Thread 驱动更多板载资源。
+
+## 开发板介绍
+
+NUCLEO-F446ZE 是 ST 公司推出的一款针对 STM32F4 系列设计的 Cortex-M4 Nucleo-144 开发板，支持 mbed，兼容 Arduino、还带有ST Zio和 ST Morpho 扩展接口，可连接微控制器的所有周边外设。
+
+开发板外观如下图所示：
+
+![board](figures/board.jpg)
+
+该开发板常用 **板载资源** 如下：
+
+- MCU：STM32f446ZE，主频 180MHz，512KB FLASH ，128KB RAM
+- 常用外设
+  - LED：3个，LED1 (绿色，PB0),LED2（蓝色，PB7），LED3（红色，PB14）
+- 常用接口：USB 转串口
+- 调试接口，标准 ST-LINK/SWD
+
+开发板更多详细信息请参考【NUCLEO-F446ZE】 [开发板介绍](https://www.st.com/zh/evaluation-tools/nucleo-f446ze.html)。
+
+## 外设支持
+
+本 BSP 目前对外设的支持情况如下：
+
+| **板载外设**      | **支持情况** | **备注**                              |
+| :----------------- | :----------: | :------------------------------------- |
+| USB 转串口        |     支持     |                                       |
+| **片上外设**      | **支持情况** | **备注**                              |
+| GPIO              |     支持     |                                       |
+| UART              |     支持     | UART1                                 |
+
+## 使用说明
+
+使用说明分为如下两个章节：
+
+- 快速上手
+
+    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
+
+- 进阶使用
+
+    本章节是为需要在 RT-Thread 操作系统上使用更多开发板资源的开发者准备的。通过使用 ENV 工具对 BSP 进行配置，可以开启更多板载资源，实现更多高级功能。
+
+
+### 快速上手
+
+本 BSP 为开发者提供 MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
+
+#### 硬件连接
+
+使用数据线连接开发板到 PC，通过数据线对开发板供电,下载,调试。
+
+#### 编译下载
+
+双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+
+> 工程默认配置使用 ST-LINK 仿真器下载程序，在通过 ST-LINK 连接开发板的基础上，点击下载按钮即可下载程序到开发板
+
+#### 运行结果
+
+下载程序成功之后，系统会自动运行，蓝色的 LED2 以 500MS 周期闪烁。
+
+连接开发板对应串口到 PC , 在终端工具里打开相应的串口（115200-8-1-N），复位设备后，可以看到 RT-Thread 的输出信息:
+
+```bash
+ \ | /
+- RT -     Thread Operating System
+ / | \     4.0.0 build Jan  7 2019
+ 2006 - 2018 Copyright by rt-thread team
+msh >
+```
+### 进阶使用
+
+此 BSP 默认只开启了 GPIO 和 串口1 的功能，如果需使用 SD 卡、Flash 等更多高级功能，需要利用 ENV 工具对BSP 进行配置，步骤如下：
+
+1. 在 bsp 下打开 env 工具。
+
+2. 输入`menuconfig`命令配置工程，配置好之后保存退出。
+
+3. 输入`pkgs --update`命令更新软件包。
+
+4. 输入`scons --target=mdk4/mdk5/iar` 命令重新生成工程。
+
+本章节更多详细的介绍请参考 [STM32 系列 BSP 外设驱动使用教程](../docs/STM32系列BSP外设驱动使用教程.md)。
+
+## 注意事项
+
+- 默认终端输出设备是 UART1
+
+## 联系人信息
+
+维护人:
+
+-   邮箱：<qihengchuan8888@163.com>

bsp/stm32/stm32f767-st-nucleo/README.md

@@ -1,110 +1,95 @@
-# STM32F767 NUCLEO-F767ZI开发板 BSP 说明
-## 简介
+# STM32F767-Nucleo BSP Introduction
 
-本文档为 NUCLEO-F767ZI 开发板的 BSP (板级支持包) 说明。
+[中文](README_zh.md) 
 
-主要内容如下：
+## MCU: STM32F767ZI @216MHz, 2MB FLASH,  512KB RAM
 
-- 开发板资源介绍
-- BSP 快速上手
-- 进阶使用方法
+The STM32F765xx, STM32F767xx, STM32F768Ax and STM32F769xx devices are based on the high-performance Arm® Cortex®-M7 32-bit RISC core operating at up to 216 MHz frequency. The Cortex®-M7 core features a floating point unit (FPU) which supports Arm® double-precision and single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances the application security.
 
-通过阅读快速上手章节开发者可以快速地上手该 BSP，将 RT-Thread 运行在开发板上。在进阶使用指南章节，将会介绍更多高级功能，帮助开发者利用 RT-Thread 驱动更多板载资源。
+The STM32F765xx, STM32F767xx, STM32F768Ax and STM32F769xx devices incorporate high-speed embedded memories with a Flash memory up to 2 Mbytes, 512 Kbytes of SRAM (including 128 Kbytes of Data TCM RAM for critical real-time data), 16 Kbytes of instruction TCM RAM (for critical real-time routines), 4 Kbytes of backup SRAM available in the lowest power modes, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, a 32-bit multi-AHB bus matrix and a multi layer AXI interconnect supporting internal and external memories access.
+All the devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers, a true random number generator (RNG). They also feature standard and advanced communication interfaces.
+Advanced peripherals include two SDMMC interfaces, a flexible memory control (FMC) interface, a Quad-SPI Flash memory interface, a camera interface for CMOS sensors.
+The STM32F765xx, STM32F767xx, STM32F768Ax and STM32F769xx devices operate in the –40 to +105 °C temperature range from a 1.7 to 3.6 V power supply. Dedicated supply inputs for USB (OTG_FS and OTG_HS) and SDMMC2 (clock, command and 4-bit data) are available on all the packages except LQFP100 for a greater power supply choice.
+The supply voltage can drop to 1.7 V with the use of an external power supply supervisor. A comprehensive set of power-saving mode allows the design of low-power applications.
+The STM32F765xx, STM32F767xx, STM32F768Ax and STM32F769xx devices offer devices in 11 packages ranging from 100 pins to 216 pins. The set of included peripherals changes with the device chosen.
+These features make the STM32F765xx, STM32F767xx, STM32F768Ax and STM32F769xx microcontrollers suitable for a wide range of applications.
 
-## 开发板介绍
+#### KEY FEATURES
 
-NUCLEO-F767ZI 是st推出的一款基于 ARM Cortex-M7 内核的开发板，最高主频为 216Mhz，该开发板具有丰富的板载资源，可以充分发挥 STM32F767 的芯片性能。
+- Core: Arm® 32-bit Cortex®-M7 CPU with DPFPU, ART Accelerator™ and L1-cache: 16 Kbytes I/D cache, allowing 0-wait state execution from embedded Flash and external memories, up to 216 MHz, MPU, 462 DMIPS/2.14 DMIPS/MHz (Dhrystone 2.1), and DSP instructions.
+- Memories
+  - Up to 2 Mbytes of Flash memory organized into two banks allowing read-while-write
+  - SRAM: 512 Kbytes (including 128 Kbytes of data TCM RAM for critical real-time data) + 16 Kbytes of instruction TCM RAM (for critical real-time routines) + 4 Kbytes of backup SRAM
+  - Flexible external memory controller with up to 32-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND memories
+- Dual mode Quad-SPI
+- Graphics
+  - Chrom-ART Accelerator™ (DMA2D), graphical hardware accelerator enabling enhanced graphical user interface
+  - Hardware JPEG codec
+  - LCD-TFT controller supporting up to XGA resolution
+  - MIPI® DSI host controller supporting up to 720p 30 Hz resolution
+- Clock, reset and supply management
+  - 1.7 V to 3.6 V application supply and I/Os
+  - POR, PDR, PVD and BOR
+  - Dedicated USB power
+  - 4-to-26 MHz crystal oscillator
+  - Internal 16 MHz factory-trimmed RC (1% accuracy)
+  - 32 kHz oscillator for RTC with calibration
+  - Internal 32 kHz RC with calibration
+- Low-power
+  - Sleep, Stop and Standby modes
+  - VBAT supply for RTC, 32×32 bit backup registers + 4 Kbytes backup SRAM
+- 3×12-bit, 2.4 MSPS ADC: up to 24 channels
+- Digital filters for sigma delta modulator (DFSDM), 8 channels / 4 filters
+- 2×12-bit D/A converters
+- General-purpose DMA: 16-stream DMA controller with FIFOs and burst support
 
-开发板外观如下图所示：
-
-![board](figures/en.high-perf_nucleo-144_mbed.jpg)
-
-该开发板常用 **板载资源** 如下：
-
-- MCU：STM32f767，主频 216MHz，2MB FLASH ，512KB RAM ，16K CACHE
-
-- 常用外设
-  - LED ：3个，LED1 (绿色，PB0),LED2（蓝色，PB7），LED3（红色，PB14）
-  - 按键：2个，B1（用户按键，PC13），B2（复位引脚）
-- 常用接口：USB 转串口3、以太网接口
-- 调试接口：ST-LINK
-
-开发板更多详细信息请参考ST [NUCLEO-F767ZI开发板介绍](https://www.st.com/en/evaluation-tools/nucleo-f767zi.html)。
-
-## 外设支持
-
-本 BSP 目前对外设的支持情况如下：
-
-| **板载外设**      | **支持情况** | **备注**                              |
-| :-----------------| :----------: | :-------------------------------------|
-| USB 转串口3        |     支持     |                                       |
-| 以太网            |   支持   | PHY 选项 LAN8720A（兼容 LAN8742A） |
-| **片上外设**      | **支持情况** | **备注**                              |
-| GPIO              |     支持     | PA0, PA1... PK15 ---> PIN: 0, 1...144 |
-| UART              |     支持     | UART3                                 |
-| **扩展模块**      | **支持情况** | **备注**                              |
-| 暂无              |   暂不支持   | 暂不支持                              |
-
-## 使用说明
-
-使用说明分为如下两个章节：
-
-- 快速上手
-
-    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
-
-- 进阶使用
-
-    本章节是为需要在 RT-Thread 操作系统上使用更多开发板资源的开发者准备的。通过使用 ENV 工具对 BSP 进行配置，可以开启更多板载资源，实现更多高级功能。
+- Up to 18 timers: up to thirteen 16-bit (1x low- power 16-bit timer available in Stop mode) and two 32-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input. All 15 timers running up to 216 MHz. 2x watchdogs, SysTick timer
+- Debug mode
+  - SWD & JTAG interfaces
+  - Cortex®-M7 Trace Macrocell™
+- Up to 168 I/O ports with interrupt capability
+  - Up to 164 fast I/Os up to 108 MHz
+  - Up to 166 5 V-tolerant I/Os
+- Up to 28 communication interfaces
+  - Up to 4 I2C interfaces (SMBus/PMBus)
+  - Up to 4 USARTs/4 UARTs (12.5 Mbit/s, ISO7816 interface, LIN, IrDA, modem control)
+  - Up to 6 SPIs (up to 54 Mbit/s), 3 with muxed simplex I2S for audio
+  - 2 x SAIs (serial audio interface)
+  - 3 x CANs (2.0B Active) and 2 x SDMMCs
+  - SPDIFRX interface
+  - HDMI-CEC
+  - MDIO slave interface
+- Advanced connectivity
+  - USB 2.0 full-speed device/host/OTG controller with on-chip PHY
+  - USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI
+  - 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII
+- 8- to 14-bit camera interface up to 54 Mbyte/s
+- True random number generator
+- CRC calculation unit
+- RTC: subsecond accuracy, hardware calendar
+- 96-bit unique ID
 
 
-### 快速上手
 
-本 BSP 为开发者提供 MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
+## Read more
 
-#### 硬件连接
+|                          Documents                           |                         Description                          |
+| :----------------------------------------------------------: | :----------------------------------------------------------: |
+| [STM32_Nucleo-144_BSP_Introduction](../docs/STM32_Nucleo-144_BSP_Introduction.md) | How to run RT-Thread on STM32 Nucleo-144 boards (**Must-Read**) |
+| [STM32F767ZI ST Official Website](https://www.st.com/en/microcontrollers-microprocessors/stm32f767zi.html#documentation) |          STM32F767ZI datasheet and other resources           |
 
-使用数据线连接开发板到 PC，打开电源开关。
 
-#### 编译下载
 
-双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+## Maintained By
 
-> 工程默认配置使用 ST-LINK 仿真器下载程序，在通过 ST-LINK 连接开发板的基础上，点击下载按钮即可下载程序到开发板
+[e31207077](https://github.com/e31207077)  <e31207077@yahoo.com.tw>
 
-#### 运行结果
 
-下载程序成功之后，系统会自动运行，LED 闪烁。
 
-连接开发板对应串口到 PC , 在终端工具里打开相应的串口（115200-8-1-N），复位设备后，可以看到 RT-Thread 的输出信息:
+## Translated By
 
-```bash
- \ | /
-- RT -     Thread Operating System
- / | \     4.0.0 build Jan  9 2019
- 2006 - 2018 Copyright by rt-thread team
-msh >
-```
-### 进阶使用
+Meco Man @ RT-Thread Community
 
-此 BSP 默认只开启了 GPIO 和 串口3 的功能，如果需使用 Ethernet 等更多高级功能，需要利用 ENV 工具对BSP 进行配置，步骤如下：
-
-1. 在 bsp 下打开 env 工具。
-
-2. 输入`menuconfig`命令配置工程，配置好之后保存退出。
-
-3. 输入`pkgs --update`命令更新软件包。
-
-4. 输入`scons --target=mdk4/mdk5/iar` 命令重新生成工程。
-
-本章节更多详细的介绍请参考 [STM32 系列 BSP 外设驱动使用教程](../docs/STM32系列BSP外设驱动使用教程.md)。
-
-## 注意事项
-
-暂无
-
-## 联系人信息
-
-维护人:
-
--  [e31207077](https://github.com/e31207077), 邮箱：<e31207077@yahoo.com.tw>
+> jiantingman@foxmail.com 
+>
+> https://github.com/mysterywolf

bsp/stm32/stm32f767-st-nucleo/README_zh.md

@@ -0,0 +1,110 @@
+# STM32F767 NUCLEO-F767ZI开发板 BSP 说明
+## 简介
+
+本文档为 NUCLEO-F767ZI 开发板的 BSP (板级支持包) 说明。
+
+主要内容如下：
+
+- 开发板资源介绍
+- BSP 快速上手
+- 进阶使用方法
+
+通过阅读快速上手章节开发者可以快速地上手该 BSP，将 RT-Thread 运行在开发板上。在进阶使用指南章节，将会介绍更多高级功能，帮助开发者利用 RT-Thread 驱动更多板载资源。
+
+## 开发板介绍
+
+NUCLEO-F767ZI 是st推出的一款基于 ARM Cortex-M7 内核的开发板，最高主频为 216Mhz，该开发板具有丰富的板载资源，可以充分发挥 STM32F767 的芯片性能。
+
+开发板外观如下图所示：
+
+![board](figures/en.high-perf_nucleo-144_mbed.jpg)
+
+该开发板常用 **板载资源** 如下：
+
+- MCU：STM32f767，主频 216MHz，2MB FLASH ，512KB RAM ，16K CACHE
+
+- 常用外设
+  - LED ：3个，LED1 (绿色，PB0),LED2（蓝色，PB7），LED3（红色，PB14）
+  - 按键：2个，B1（用户按键，PC13），B2（复位引脚）
+- 常用接口：USB 转串口3、以太网接口
+- 调试接口：ST-LINK
+
+开发板更多详细信息请参考ST [NUCLEO-F767ZI开发板介绍](https://www.st.com/en/evaluation-tools/nucleo-f767zi.html)。
+
+## 外设支持
+
+本 BSP 目前对外设的支持情况如下：
+
+| **板载外设**      | **支持情况** | **备注**                              |
+| :-----------------| :----------: | :-------------------------------------|
+| USB 转串口3        |     支持     |                                       |
+| 以太网            |   支持   | PHY 选项 LAN8720A（兼容 LAN8742A） |
+| **片上外设**      | **支持情况** | **备注**                              |
+| GPIO              |     支持     | PA0, PA1... PK15 ---> PIN: 0, 1...144 |
+| UART              |     支持     | UART3                                 |
+| **扩展模块**      | **支持情况** | **备注**                              |
+| 暂无              |   暂不支持   | 暂不支持                              |
+
+## 使用说明
+
+使用说明分为如下两个章节：
+
+- 快速上手
+
+    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
+
+- 进阶使用
+
+    本章节是为需要在 RT-Thread 操作系统上使用更多开发板资源的开发者准备的。通过使用 ENV 工具对 BSP 进行配置，可以开启更多板载资源，实现更多高级功能。
+
+
+### 快速上手
+
+本 BSP 为开发者提供 MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
+
+#### 硬件连接
+
+使用数据线连接开发板到 PC，打开电源开关。
+
+#### 编译下载
+
+双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+
+> 工程默认配置使用 ST-LINK 仿真器下载程序，在通过 ST-LINK 连接开发板的基础上，点击下载按钮即可下载程序到开发板
+
+#### 运行结果
+
+下载程序成功之后，系统会自动运行，LED 闪烁。
+
+连接开发板对应串口到 PC , 在终端工具里打开相应的串口（115200-8-1-N），复位设备后，可以看到 RT-Thread 的输出信息:
+
+```bash
+ \ | /
+- RT -     Thread Operating System
+ / | \     4.0.0 build Jan  9 2019
+ 2006 - 2018 Copyright by rt-thread team
+msh >
+```
+### 进阶使用
+
+此 BSP 默认只开启了 GPIO 和 串口3 的功能，如果需使用 Ethernet 等更多高级功能，需要利用 ENV 工具对BSP 进行配置，步骤如下：
+
+1. 在 bsp 下打开 env 工具。
+
+2. 输入`menuconfig`命令配置工程，配置好之后保存退出。
+
+3. 输入`pkgs --update`命令更新软件包。
+
+4. 输入`scons --target=mdk4/mdk5/iar` 命令重新生成工程。
+
+本章节更多详细的介绍请参考 [STM32 系列 BSP 外设驱动使用教程](../docs/STM32系列BSP外设驱动使用教程.md)。
+
+## 注意事项
+
+暂无
+
+## 联系人信息
+
+维护人:
+
+-  [e31207077](https://github.com/e31207077), 邮箱：<e31207077@yahoo.com.tw>

bsp/stm32f20x/applications/startup.c

@@ -61,12 +61,6 @@ void rtthread_startup(void)
 	/* show version */
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/taihu/applications/startup.c

@@ -40,9 +40,6 @@ void rtthread_startup(void)
 	rt_hw_board_init();
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/tms320f28379d/applications/startup.c

@@ -50,12 +50,6 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

bsp/upd70f3454/applications/startup.c

@@ -49,13 +49,7 @@ void rtthread_startup(void)
 
     /* show version */
     rt_show_version();
-
-    /* init tick */
-    rt_system_tick_init();
-    
-    /* init kernel object */
-    rt_system_object_init();
-    
+        
     /* init timer system */
     rt_system_timer_init();
 

bsp/wh44b0/startup.c

@@ -58,12 +58,6 @@ void rtthread_startup(void)
 
 	rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
 	/* init timer system */
 	rt_system_timer_init();
 

bsp/x86/applications/startup.c

@@ -69,12 +69,6 @@ void rtthread_startup(void)
 
     rt_show_version();
 
-    /* init tick */
-    rt_system_tick_init();
-
-    /* init kernel object */
-    rt_system_object_init();
-
     /* init timer system */
     rt_system_timer_init();
 

components/drivers/pm/pm.c

@@ -8,6 +8,7 @@
  * 2012-06-02     Bernard      the first version
  * 2018-08-02     Tanek        split run and sleep modes, support custom mode
  * 2019-04-28     Zero-Free    improve PM mode and device ops interface
+ * 2020-11-23     zhangsz      update pm mode select
  */
 
 #include <rthw.h>
@@ -214,8 +215,6 @@ static void _pm_change_sleep_mode(struct rt_pm *pm, rt_uint8_t mode)
  */
 void rt_system_power_manager(void)
 {
-    rt_uint8_t mode;
-
     if (_pm_init_flag == 0)
         return;
 
@@ -223,8 +222,7 @@ void rt_system_power_manager(void)
     _pm_frequency_scaling(&_pm);
 
     /* Low Power Mode Processing */
-    mode = _pm_select_sleep_mode(&_pm);
-    _pm_change_sleep_mode(&_pm, mode);
+    _pm_change_sleep_mode(&_pm, _pm.sleep_mode);
 }
 
 /**
@@ -248,6 +246,7 @@ void rt_pm_request(rt_uint8_t mode)
     pm = &_pm;
     if (pm->modes[mode] < 255)
         pm->modes[mode] ++;
+    _pm_select_sleep_mode(pm);
     rt_hw_interrupt_enable(level);
 }
 
@@ -273,6 +272,7 @@ void rt_pm_release(rt_uint8_t mode)
     pm = &_pm;
     if (pm->modes[mode] > 0)
         pm->modes[mode] --;
+    _pm_select_sleep_mode(pm);
     rt_hw_interrupt_enable(level);
 }
 
@@ -516,6 +516,10 @@ void rt_system_pm_init(const struct rt_pm_ops *ops,
     pm->device_pm = RT_NULL;
     pm->device_pm_number = 0;
 
+#if IDLE_THREAD_STACK_SIZE <= 256
+    #error "[pm.c ERR] IDLE Stack Size Too Small!"
+#endif
+
     _pm_init_flag = 1;
 }
 

components/libc/pthreads/semaphore.c

@@ -64,7 +64,7 @@ static sem_t *posix_sem_find(const char* name)
 
     for (iter = posix_sem_list; iter != RT_NULL; iter = iter->next)
     {
-        object = (rt_object_t)&(iter->sem);
+        object = (rt_object_t)iter->sem;
 
         if (strncmp(object->name, name, RT_NAME_MAX) == 0)
         {

documentation/doxygen/systeminit.h

@@ -21,12 +21,6 @@
  * - show version
  * rt_show_version();
  *
- * - initialize system tick
- * rt_system_tick_init();
- *
- * - initialize kernel object [deprecated]
- * rt_system_object_init();
- *
  * - initialize timer system
  * rt_system_timer_init();
  *

include/rtthread.h

@@ -38,7 +38,6 @@ extern "C" {
 /*
  * kernel object interface
  */
-void rt_system_object_init(void);
 struct rt_object_information *
 rt_object_get_information(enum rt_object_class_type type);
 int rt_object_get_length(enum rt_object_class_type type);
@@ -74,7 +73,6 @@ void rt_object_put_sethook(void (*hook)(struct rt_object *object));
 /*
  * clock & timer interface
  */
-void rt_system_tick_init(void);
 rt_tick_t rt_tick_get(void);
 void rt_tick_set(rt_tick_t tick);
 void rt_tick_increase(void);

libcpu/Kconfig

@@ -106,6 +106,14 @@ config ARCH_RISCV
 config ARCH_RISCV_FPU
     bool
 
+config ARCH_RISCV_FPU_S
+    select ARCH_RISCV_FPU
+    bool
+
+config ARCH_RISCV_FPU_D
+    select ARCH_RISCV_FPU
+    bool
+
 config ARCH_RISCV32
     select ARCH_RISCV
     bool

libcpu/aarch64/common/cpu.c

@@ -76,7 +76,7 @@ void rt_hw_spin_unlock(rt_hw_spinlock_t *lock)
 /*@{*/
 
 /** shutdown CPU */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
     rt_uint32_t level;
     rt_kprintf("shutdown...\n");

libcpu/arc/em/cpuport.c

@@ -32,7 +32,7 @@ struct init_stack_frame {
 /**
  * shutdown CPU
  */
-void rt_hw_cpu_shutdown(void)
+RT_WEAK void rt_hw_cpu_shutdown(void)
 {
 
 }

libcpu/arm/AT91SAM7S/cpu.c

@@ -20,7 +20,7 @@
  * this function will reset CPU
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 }
 
@@ -28,7 +28,7 @@ void rt_hw_cpu_reset()
  * this function will shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_kprintf("shutdown...\n");
 

libcpu/arm/AT91SAM7X/cpu.c

@@ -20,7 +20,7 @@
  * this function will reset CPU
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 }
 
@@ -28,7 +28,7 @@ void rt_hw_cpu_reset()
  * this function will shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_kprintf("shutdown...\n");
 

libcpu/arm/am335x/cpu.c

@@ -149,7 +149,7 @@ rt_base_t rt_hw_cpu_dcache_status()
  *  shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_uint32_t level;
 	rt_kprintf("shutdown...\n");

libcpu/arm/arm926/cpuport.c

@@ -146,7 +146,7 @@ rt_base_t rt_hw_cpu_dcache_status()
  * reset cpu by dog's time-out
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 
     rt_kprintf("Restarting system...\n");
@@ -161,7 +161,7 @@ void rt_hw_cpu_reset()
  *  shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
     rt_uint32_t level;
     rt_kprintf("shutdown...\n");

libcpu/arm/armv6/cpuport.c

@@ -147,7 +147,7 @@ rt_base_t rt_hw_cpu_dcache_status()
  * reset cpu by dog's time-out
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 	
 	rt_kprintf("Restarting system...\n");
@@ -162,7 +162,7 @@ void rt_hw_cpu_reset()
  *  shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_uint32_t level;
 	rt_kprintf("shutdown...\n");

libcpu/arm/cortex-a/cpu.c

@@ -74,7 +74,7 @@ void rt_hw_spin_unlock(rt_hw_spinlock_t *lock)
 /*@{*/
 
 /** shutdown CPU */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
     rt_uint32_t level;
     rt_kprintf("shutdown...\n");

libcpu/arm/cortex-m3/cpuport.c

@@ -344,7 +344,7 @@ void rt_hw_hard_fault_exception(struct exception_info * exception_info)
 /**
  * shutdown CPU
  */
-void rt_hw_cpu_shutdown(void)
+RT_WEAK void rt_hw_cpu_shutdown(void)
 {
     rt_kprintf("shutdown...\n");
 

libcpu/arm/cortex-m33/cpuport.c

@@ -431,7 +431,7 @@ void rt_hw_hard_fault_exception(struct exception_info *exception_info)
 /**
  * shutdown CPU
  */
-void rt_hw_cpu_shutdown(void)
+RT_WEAK void rt_hw_cpu_shutdown(void)
 {
     rt_kprintf("shutdown...\n");
 

libcpu/arm/cortex-m4/cpuport.c

@@ -428,7 +428,7 @@ void rt_hw_hard_fault_exception(struct exception_info *exception_info)
 /**
  * shutdown CPU
  */
-void rt_hw_cpu_shutdown(void)
+RT_WEAK void rt_hw_cpu_shutdown(void)
 {
     rt_kprintf("shutdown...\n");
 

libcpu/arm/cortex-m7/cpuport.c

@@ -428,7 +428,7 @@ void rt_hw_hard_fault_exception(struct exception_info *exception_info)
 /**
  * shutdown CPU
  */
-void rt_hw_cpu_shutdown(void)
+RT_WEAK void rt_hw_cpu_shutdown(void)
 {
     rt_kprintf("shutdown...\n");
 

libcpu/arm/cortex-r4/cpu.c

@@ -20,7 +20,7 @@
  * this function will reset CPU
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 }
 
@@ -28,7 +28,7 @@ void rt_hw_cpu_reset()
  * this function will shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_kprintf("shutdown...\n");
 

libcpu/arm/dm36x/cpuport.c

@@ -145,7 +145,7 @@ rt_base_t rt_hw_cpu_dcache_status()
  * reset cpu by dog's time-out
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 	
 	rt_kprintf("Restarting system...\n");
@@ -160,7 +160,7 @@ void rt_hw_cpu_reset()
  *  shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_uint32_t level;
 	rt_kprintf("shutdown...\n");

libcpu/arm/lpc214x/cpuport.c

@@ -163,7 +163,7 @@ rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
  * this function will reset CPU
  *
  */
-void rt_hw_cpu_reset(void)
+RT_WEAK void rt_hw_cpu_reset(void)
 {
 }
 
@@ -171,7 +171,7 @@ void rt_hw_cpu_reset(void)
  * this function will shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_kprintf("shutdown...\n");
 

libcpu/arm/lpc24xx/cpu.c

@@ -20,7 +20,7 @@
  * this function will reset CPU
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 }
 
@@ -28,7 +28,7 @@ void rt_hw_cpu_reset()
  * this function will shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_kprintf("shutdown...\n");
 

libcpu/arm/realview-a8-vmm/cpu.c

@@ -18,7 +18,7 @@
 /*@{*/
 
 /** shutdown CPU */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_uint32_t level;
 	rt_kprintf("shutdown...\n");

libcpu/arm/s3c24x0/cpu.c

@@ -148,7 +148,7 @@ rt_base_t rt_hw_cpu_dcache_status()
  * reset cpu by dog's time-out
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 	/* Disable all interrupt except the WDT */
 	INTMSK = (~((rt_uint32_t)1 << INTWDT));
@@ -171,7 +171,7 @@ void rt_hw_cpu_reset()
  *  shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_uint32_t level;
 	rt_kprintf("shutdown...\n");

libcpu/arm/s3c44b0/cpu.c

@@ -100,7 +100,7 @@ rt_base_t rt_hw_cpu_dcache_status()
  * this function will reset CPU
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 }
 
@@ -108,7 +108,7 @@ void rt_hw_cpu_reset()
  * this function will shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_kprintf("shutdown...\n");
 

libcpu/arm/sep4020/cpu.c

@@ -152,7 +152,7 @@ rt_base_t rt_hw_cpu_dcache_status()
  * reset cpu by dog's time-out
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 
 	/* enable watchdog */
@@ -173,7 +173,7 @@ void rt_hw_cpu_reset()
  *  shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_uint32_t UNUSED level;
 	rt_kprintf("shutdown...\n");

libcpu/arm/zynq7000/cpu.c

@@ -16,7 +16,7 @@
  * reset cpu by dog's time-out
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
     while (1);  /* loop forever and wait for reset to happen */
 
@@ -27,7 +27,7 @@ void rt_hw_cpu_reset()
  *  shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
     rt_uint32_t level;
     rt_kprintf("shutdown...\n");

libcpu/avr32/uc3/cpu.c

@@ -23,7 +23,7 @@
  * reset cpu by dog's time-out
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 	/*NOTREACHED*/
 }

libcpu/mips/gs232/cpuport.c

@@ -23,7 +23,7 @@
  * this function will reset CPU
  *
  */
-void rt_hw_cpu_reset(void)
+RT_WEAK void rt_hw_cpu_reset(void)
 {
     /* open the watch-dog */
     WDT_EN = 0x01; 		/* watch dog enable */
@@ -38,7 +38,7 @@ void rt_hw_cpu_reset(void)
  * this function will shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown(void)
+RT_WEAK void rt_hw_cpu_shutdown(void)
 {
     rt_kprintf("shutdown...\n");
 

libcpu/risc-v/common/context_gcc.S

@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2018/10/28     Bernard      The unify RISC-V porting implementation
  * 2018/12/27     Jesven       Add SMP support
+ * 2020/11/20     BalanceTWK   Add FPU support
  */
 
 #include "cpuport.h"
@@ -72,6 +73,43 @@ rt_hw_context_switch:
      *     mstatus.mie -> sp(2)
      *     x(i)        -> sp(i-4)
      */
+#ifdef ARCH_RISCV_FPU
+    addi    sp, sp, -32 * FREGBYTES
+
+    FSTORE  f0, 0 * FREGBYTES(sp)
+    FSTORE  f1, 1 * FREGBYTES(sp)
+    FSTORE  f2, 2 * FREGBYTES(sp)
+    FSTORE  f3, 3 * FREGBYTES(sp)
+    FSTORE  f4, 4 * FREGBYTES(sp)
+    FSTORE  f5, 5 * FREGBYTES(sp)
+    FSTORE  f6, 6 * FREGBYTES(sp)
+    FSTORE  f7, 7 * FREGBYTES(sp)
+    FSTORE  f8, 8 * FREGBYTES(sp)
+    FSTORE  f9, 9 * FREGBYTES(sp)
+    FSTORE  f10, 10 * FREGBYTES(sp)
+    FSTORE  f11, 11 * FREGBYTES(sp)
+    FSTORE  f12, 12 * FREGBYTES(sp)
+    FSTORE  f13, 13 * FREGBYTES(sp)
+    FSTORE  f14, 14 * FREGBYTES(sp)
+    FSTORE  f15, 15 * FREGBYTES(sp)
+    FSTORE  f16, 16 * FREGBYTES(sp)
+    FSTORE  f17, 17 * FREGBYTES(sp)
+    FSTORE  f18, 18 * FREGBYTES(sp)
+    FSTORE  f19, 19 * FREGBYTES(sp)
+    FSTORE  f20, 20 * FREGBYTES(sp)
+    FSTORE  f21, 21 * FREGBYTES(sp)
+    FSTORE  f22, 22 * FREGBYTES(sp)
+    FSTORE  f23, 23 * FREGBYTES(sp)
+    FSTORE  f24, 24 * FREGBYTES(sp)
+    FSTORE  f25, 25 * FREGBYTES(sp)
+    FSTORE  f26, 26 * FREGBYTES(sp)
+    FSTORE  f27, 27 * FREGBYTES(sp)
+    FSTORE  f28, 28 * FREGBYTES(sp)
+    FSTORE  f29, 29 * FREGBYTES(sp)
+    FSTORE  f30, 30 * FREGBYTES(sp)
+    FSTORE  f31, 31 * FREGBYTES(sp)
+
+#endif
     addi  sp,  sp, -32 * REGBYTES
     STORE sp,  (a0)
 
@@ -174,7 +212,7 @@ rt_hw_context_switch_exit:
 
     LOAD x1,   1 * REGBYTES(sp)
 
-    li    t0, 0x00001800
+    li    t0, 0x00007800
     csrw  mstatus, t0
     LOAD a0,   2 * REGBYTES(sp)
     csrs mstatus, a0
@@ -209,4 +247,42 @@ rt_hw_context_switch_exit:
     LOAD x31, 31 * REGBYTES(sp)
 
     addi sp,  sp, 32 * REGBYTES
+
+#ifdef ARCH_RISCV_FPU
+    FLOAD   f0, 0 * FREGBYTES(sp)
+    FLOAD   f1, 1 * FREGBYTES(sp)
+    FLOAD   f2, 2 * FREGBYTES(sp)
+    FLOAD   f3, 3 * FREGBYTES(sp)
+    FLOAD   f4, 4 * FREGBYTES(sp)
+    FLOAD   f5, 5 * FREGBYTES(sp)
+    FLOAD   f6, 6 * FREGBYTES(sp)
+    FLOAD   f7, 7 * FREGBYTES(sp)
+    FLOAD   f8, 8 * FREGBYTES(sp)
+    FLOAD   f9, 9 * FREGBYTES(sp)
+    FLOAD   f10, 10 * FREGBYTES(sp)
+    FLOAD   f11, 11 * FREGBYTES(sp)
+    FLOAD   f12, 12 * FREGBYTES(sp)
+    FLOAD   f13, 13 * FREGBYTES(sp)
+    FLOAD   f14, 14 * FREGBYTES(sp)
+    FLOAD   f15, 15 * FREGBYTES(sp)
+    FLOAD   f16, 16 * FREGBYTES(sp)
+    FLOAD   f17, 17 * FREGBYTES(sp)
+    FLOAD   f18, 18 * FREGBYTES(sp)
+    FLOAD   f19, 19 * FREGBYTES(sp)
+    FLOAD   f20, 20 * FREGBYTES(sp)
+    FLOAD   f21, 21 * FREGBYTES(sp)
+    FLOAD   f22, 22 * FREGBYTES(sp)
+    FLOAD   f23, 23 * FREGBYTES(sp)
+    FLOAD   f24, 24 * FREGBYTES(sp)
+    FLOAD   f25, 25 * FREGBYTES(sp)
+    FLOAD   f26, 26 * FREGBYTES(sp)
+    FLOAD   f27, 27 * FREGBYTES(sp)
+    FLOAD   f28, 28 * FREGBYTES(sp)
+    FLOAD   f29, 29 * FREGBYTES(sp)
+    FLOAD   f30, 30 * FREGBYTES(sp)
+    FLOAD   f31, 31 * FREGBYTES(sp)
+
+    addi    sp, sp, 32 * FREGBYTES
+#endif
+
     mret

libcpu/risc-v/common/cpuport.c

@@ -6,6 +6,7 @@
  * Change Logs:
  * Date           Author       Notes
  * 2018/10/28     Bernard      The unify RISC-V porting code.
+ * 2020/11/20     BalanceTWK   Add FPU support
  */
 
 #include <rthw.h>
@@ -53,6 +54,40 @@ struct rt_hw_stack_frame
     rt_ubase_t t4;         /* x29 - t4     - temporary register 4                */
     rt_ubase_t t5;         /* x30 - t5     - temporary register 5                */
     rt_ubase_t t6;         /* x31 - t6     - temporary register 6                */
+#ifdef ARCH_RISCV_FPU
+    rv_floatreg_t f0;      /* f0  */
+    rv_floatreg_t f1;      /* f1  */
+    rv_floatreg_t f2;      /* f2  */
+    rv_floatreg_t f3;      /* f3  */
+    rv_floatreg_t f4;      /* f4  */
+    rv_floatreg_t f5;      /* f5  */
+    rv_floatreg_t f6;      /* f6  */
+    rv_floatreg_t f7;      /* f7  */
+    rv_floatreg_t f8;      /* f8  */
+    rv_floatreg_t f9;      /* f9  */
+    rv_floatreg_t f10;     /* f10 */
+    rv_floatreg_t f11;     /* f11 */
+    rv_floatreg_t f12;     /* f12 */
+    rv_floatreg_t f13;     /* f13 */
+    rv_floatreg_t f14;     /* f14 */
+    rv_floatreg_t f15;     /* f15 */
+    rv_floatreg_t f16;     /* f16 */
+    rv_floatreg_t f17;     /* f17 */
+    rv_floatreg_t f18;     /* f18 */
+    rv_floatreg_t f19;     /* f19 */
+    rv_floatreg_t f20;     /* f20 */
+    rv_floatreg_t f21;     /* f21 */
+    rv_floatreg_t f22;     /* f22 */
+    rv_floatreg_t f23;     /* f23 */
+    rv_floatreg_t f24;     /* f24 */
+    rv_floatreg_t f25;     /* f25 */
+    rv_floatreg_t f26;     /* f26 */
+    rv_floatreg_t f27;     /* f27 */
+    rv_floatreg_t f28;     /* f28 */
+    rv_floatreg_t f29;     /* f29 */
+    rv_floatreg_t f30;     /* f30 */
+    rv_floatreg_t f31;     /* f31 */
+#endif
 };
 
 /**
@@ -116,7 +151,7 @@ void rt_hw_context_switch_interrupt(rt_ubase_t from, rt_ubase_t to)
 #endif /* end of RT_USING_SMP */
 
 /** shutdown CPU */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
     rt_uint32_t level;
     rt_kprintf("shutdown...\n");

libcpu/risc-v/common/cpuport.h

@@ -6,6 +6,7 @@
  * Change Logs:
  * Date           Author       Notes
  * 2018-10-03     Bernard      The first version
+ * 2020/11/20     BalanceTWK   Add FPU support
  */
 
 #ifndef CPUPORT_H__
@@ -24,4 +25,19 @@
 #define REGBYTES                4
 #endif
 
+#ifdef ARCH_RISCV_FPU
+#ifdef ARCH_RISCV_FPU_D
+#define FSTORE                  fsd
+#define FLOAD                   fld
+#define FREGBYTES               8
+#define rv_floatreg_t           rt_int64_t  	       
+#endif
+#ifdef ARCH_RISCV_FPU_S
+#define FSTORE                  fsw
+#define FLOAD                   flw
+#define FREGBYTES               4
+#define rv_floatreg_t           rt_int32_t  	       
+#endif
+#endif
+
 #endif

libcpu/risc-v/k210/interrupt_gcc.S

@@ -15,6 +15,43 @@
   .align 2
   .global trap_entry
 trap_entry:
+#ifdef ARCH_RISCV_FPU
+    addi    sp, sp, -32 * FREGBYTES
+
+    FSTORE  f0, 0 * FREGBYTES(sp)
+    FSTORE  f1, 1 * FREGBYTES(sp)
+    FSTORE  f2, 2 * FREGBYTES(sp)
+    FSTORE  f3, 3 * FREGBYTES(sp)
+    FSTORE  f4, 4 * FREGBYTES(sp)
+    FSTORE  f5, 5 * FREGBYTES(sp)
+    FSTORE  f6, 6 * FREGBYTES(sp)
+    FSTORE  f7, 7 * FREGBYTES(sp)
+    FSTORE  f8, 8 * FREGBYTES(sp)
+    FSTORE  f9, 9 * FREGBYTES(sp)
+    FSTORE  f10, 10 * FREGBYTES(sp)
+    FSTORE  f11, 11 * FREGBYTES(sp)
+    FSTORE  f12, 12 * FREGBYTES(sp)
+    FSTORE  f13, 13 * FREGBYTES(sp)
+    FSTORE  f14, 14 * FREGBYTES(sp)
+    FSTORE  f15, 15 * FREGBYTES(sp)
+    FSTORE  f16, 16 * FREGBYTES(sp)
+    FSTORE  f17, 17 * FREGBYTES(sp)
+    FSTORE  f18, 18 * FREGBYTES(sp)
+    FSTORE  f19, 19 * FREGBYTES(sp)
+    FSTORE  f20, 20 * FREGBYTES(sp)
+    FSTORE  f21, 21 * FREGBYTES(sp)
+    FSTORE  f22, 22 * FREGBYTES(sp)
+    FSTORE  f23, 23 * FREGBYTES(sp)
+    FSTORE  f24, 24 * FREGBYTES(sp)
+    FSTORE  f25, 25 * FREGBYTES(sp)
+    FSTORE  f26, 26 * FREGBYTES(sp)
+    FSTORE  f27, 27 * FREGBYTES(sp)
+    FSTORE  f28, 28 * FREGBYTES(sp)
+    FSTORE  f29, 29 * FREGBYTES(sp)
+    FSTORE  f30, 30 * FREGBYTES(sp)
+    FSTORE  f31, 31 * FREGBYTES(sp)
+
+#endif
 
     /* save thread context to thread stack */
     addi sp, sp, -32 * REGBYTES

libcpu/risc-v/k210/startup_gcc.S

@@ -67,38 +67,38 @@ _start:
   csrs mstatus, t0
 
   fssr    x0
-  fmv.d.x f0, x0
-  fmv.d.x f1, x0
-  fmv.d.x f2, x0
-  fmv.d.x f3, x0
-  fmv.d.x f4, x0
-  fmv.d.x f5, x0
-  fmv.d.x f6, x0
-  fmv.d.x f7, x0
-  fmv.d.x f8, x0
-  fmv.d.x f9, x0
-  fmv.d.x f10,x0
-  fmv.d.x f11,x0
-  fmv.d.x f12,x0
-  fmv.d.x f13,x0
-  fmv.d.x f14,x0
-  fmv.d.x f15,x0
-  fmv.d.x f16,x0
-  fmv.d.x f17,x0
-  fmv.d.x f18,x0
-  fmv.d.x f19,x0
-  fmv.d.x f20,x0
-  fmv.d.x f21,x0
-  fmv.d.x f22,x0
-  fmv.d.x f23,x0
-  fmv.d.x f24,x0
-  fmv.d.x f25,x0
-  fmv.d.x f26,x0
-  fmv.d.x f27,x0
-  fmv.d.x f28,x0
-  fmv.d.x f29,x0
-  fmv.d.x f30,x0
-  fmv.d.x f31,x0
+  fmv.w.x f0, x0
+  fmv.w.x f1, x0
+  fmv.w.x f2, x0
+  fmv.w.x f3, x0
+  fmv.w.x f4, x0
+  fmv.w.x f5, x0
+  fmv.w.x f6, x0
+  fmv.w.x f7, x0
+  fmv.w.x f8, x0
+  fmv.w.x f9, x0
+  fmv.w.x f10,x0
+  fmv.w.x f11,x0
+  fmv.w.x f12,x0
+  fmv.w.x f13,x0
+  fmv.w.x f14,x0
+  fmv.w.x f15,x0
+  fmv.w.x f16,x0
+  fmv.w.x f17,x0
+  fmv.w.x f18,x0
+  fmv.w.x f19,x0
+  fmv.w.x f20,x0
+  fmv.w.x f21,x0
+  fmv.w.x f22,x0
+  fmv.w.x f23,x0
+  fmv.w.x f24,x0
+  fmv.w.x f25,x0
+  fmv.w.x f26,x0
+  fmv.w.x f27,x0
+  fmv.w.x f28,x0
+  fmv.w.x f29,x0
+  fmv.w.x f30,x0
+  fmv.w.x f31,x0
 
 .option push
 .option norelax

libcpu/risc-v/nuclei/cpuport.c

@@ -152,7 +152,7 @@ void rt_hw_context_switch(rt_ubase_t from, rt_ubase_t to)
  * @brief shutdown CPU
  * 
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
     rt_uint32_t level;
     rt_kprintf("shutdown...\n");

libcpu/risc-v/t-head/e906/cpuport.c

@@ -157,7 +157,7 @@ void rt_hw_interrupt_enable(rt_base_t level)
 }
 
 /** shutdown CPU */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
     rt_uint32_t level;
     rt_kprintf("shutdown...\n");

libcpu/rx/cpuport.c

@@ -182,7 +182,7 @@ void rt_hw_context_switch_interrupt(rt_uint32_t from, rt_uint32_t to)
  * 
  * @author LXZ (2014/11/8)
  */
-void rt_hw_cpu_shutdown(void)
+RT_WEAK void rt_hw_cpu_shutdown(void)
 {
     rt_kprintf("shutdown...\n");
 

libcpu/ti-dsp/c28x/cpuport.c

@@ -121,7 +121,7 @@ int __rt_ffs(int value)
 /**
  * shutdown CPU
  */
-void rt_hw_cpu_shutdown(void)
+RT_WEAK void rt_hw_cpu_shutdown(void)
 {
     rt_kprintf("shutdown...\n");
 

libcpu/unicore32/sep6200/cpu.c

@@ -259,7 +259,7 @@ static void sep6200_poweroff(void)
  * reset cpu by dog's time-out
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 
 	rt_kprintf("Soft reset, Restarting system...\n");
@@ -274,7 +274,7 @@ void rt_hw_cpu_reset()
  *  shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_uint32_t level;
 	rt_kprintf("shutdown...\n");

libcpu/xilinx/microblaze/cpu.c

@@ -18,7 +18,7 @@
  * this function will reset CPU
  *
  */
-void rt_hw_cpu_reset()
+RT_WEAK void rt_hw_cpu_reset()
 {
 }
 
@@ -26,7 +26,7 @@ void rt_hw_cpu_reset()
  * this function will shutdown CPU
  *
  */
-void rt_hw_cpu_shutdown()
+RT_WEAK void rt_hw_cpu_shutdown()
 {
 	rt_kprintf("shutdown...\n");
 

src/clock.c

@@ -24,17 +24,6 @@
 static rt_tick_t rt_tick = 0;
 #endif
 
-/**
- * This function will initialize system tick and set it to zero.
- * @ingroup SystemInit
- *
- * @deprecated since 1.1.0, this function does not need to be invoked
- * in the system initialization.
- */
-void rt_system_tick_init(void)
-{
-}
-
 /**
  * @addtogroup Clock
  */