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* [components][clock_time] Refactor time subsystem around clock_time Introduce the clock_time core with clock source/event separation, high-resolution scheduling, and boot-time helpers, plus clock_timer adapters for timer peripherals. Remove legacy ktime/cputime/hwtimer implementations and migrate arch and BSP time paths to the new subsystem while keeping POSIX time integration functional. Update drivers, Kconfig/SConscript wiring, documentation, and tests; add clock_time overview docs and align naming to clock_boottime/clock_hrtimer/clock_timer. * [components][clock_time] Use BSP-provided clock timer frequency on riscv64 * [risc-v] Use runtime clock timer frequency for tick and delays * [bsp] Add clock timer frequency hooks for riscv64 boards * [bsp] Update Renesas RA driver doc clock_timer link * [bsp] Sync zynqmp-r5-axu4ev rtconfig after config refresh * [bsp][rk3500] Update rk3500 clock configuration * [bsp][hpmicro] Add rt_hw_us_delay hook and update board delays * [bsp][stm32l496-st-nucleo] enable clock_time for hwtimer sample in ci * [bsp][hpmicro] Fix rtconfig include scope for hpm6750evk Move rtconfig.h include outside the ENET_MULTIPLE_PORT guard for hpm6750evk and hpm6750evk2 so configuration macros are available regardless of ENET settings. * [bsp][raspi3] select clock time for systimer * [bsp][hpm5300evk] Trim trailing blank line * [bsp][hpm5301evklite] Trim trailing blank line * [bsp][hpm5e00evk] Trim trailing blank line * [bsp][hpm6200evk] Trim trailing blank line * [bsp][hpm6300evk] Trim trailing blank line * [bsp][hpm6750evk] Trim trailing blank line * [bsp][hpm6750evk2] Trim trailing blank line * [bsp][hpm6750evkmini] Trim trailing blank line * [bsp][hpm6800evk] Trim trailing blank line * [bsp][hpm6e00evk] Trim trailing blank line * [bsp][nxp] switch lpc178x to gcc and remove mcx timer source * [bsp][stm32] fix the CONFIG_RT_USING_CLOCK_TIME issue. * [docs][clock_time] add clock time documentation * [docs][clock_time] Update clock time subsystem documentation - Update device driver index to use correct page reference - Clarify upper layer responsibilities in architecture overview - Update README to describe POSIX/libc, Soft RTC, and device driver usage - Refine architecture diagram with improved layout and color scheme - Remove obsolete clock_timer.md file * [kernel][utest] Trim trailing space * [clock_time] Fix hrtimer wrap handling * [clock_time] fix the static rt_inline issue * [clock_time] fix the rt_clock_hrtimer_control result issue
i.MX RT1052 EVK Pro 开发板 BSP 说明
简介
本文档为 RT-Thread 开发团队为野火 i.MX RT1052 EVK Pro 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
i.MX RT1052 EVK Pro 是野火推出的一款基于 ARM Cortex-M7 内核的开发板，最高主频为 600Mhz，该开发板具有丰富的板载资源，可以充分发挥 RT1052 的芯片性能。
开发板外观如下图所示：
该开发板常用板载资源如下：
- MCU：i.MX RT1052，主频 600MHz
- 存储：32MB SDRAM、128MB NANDFLASH、32MB QSPI FLASH、2Kb EEPROM
- 常用外设
- 陀螺仪：MPU6050
- 光强传感器：AP3216C
- LED：RGB 彩灯
- 常用接口：USB 转串口、SD 卡接口、以太网接口、LCD 接口、摄像头接口
- 调试接口：标准 JTAG/SWD
开发板更多详细信息请参考野火 i.MX RT1052 EVK Pro 开发板介绍。
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 | |
| RS232 | 支持 | UART2 |
| RS485 | 支持 | UART5 |
| RGB | 支持 | |
| MPU6050 | 支持 | I2C1 |
| AP3216C | 支持 | I2C1 |
| EEPROM | 支持 | I2C1 |
| 片上外设 | 支持情况 | 备注 |
| GPIO | 支持 | |
| UART | 支持 | UART1 |
| I2C | 支持 | |
| RTC | 支持 | |
| WDT | 支持 | |
| PWM | 支持 | |
| GPT | 支持 | |
| CAN | 支持 | CAN1 |
Keil IDE 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。
请注意！！！
在执行编译工作前请先打开ENV执行以下指令（该指令用于拉取必要的库，否则无法通过编译）：
pkgs --update
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
首先需要将需要将 RT1052 的 FLASH 下载算法（board目录下的MIMXRT105x_QuadSPI_4KB_SEC.FLM 文件）拷贝到 MDK 安装路径→ARM→Flash文件夹里面。双击 project.uvprojx 文件，打开 MDK5 工程，按照下图所示选择下载算法并保存设置：
编译工程，工程默认配置使用 CMSIS-DAP 下载程序，在通过 CMSIS-DAP 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，观察开发板上 LED 的运行效果，蓝色 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:
\ | /
- RT - Thread Operating System
/ | \ 4.0.1 build May 5 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 1 的功能，如果需使用 MPU6050 等更多高级外设功能，需要利用 ENV 工具对 BSP 进行配置，步骤如下：
-
在 bsp 下打开 env 工具。
-
输入
menuconfig命令配置工程，配置好之后保存退出。 -
输入
pkgs --update命令更新软件包。 -
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 IMXRT系列BSP外设驱动使用教程。
RT-Thread Studio 使用说明
导入工程
- 首选在
RT-Thread Studio中点击导入工程，选择RT-Thread Bsp到工作空间中。
- 选择
imxrt1052-fire-pro目录作为Bsp根目录
- 为本工程起个别名，作为本项目的工程名称
下载配置
这里使用
jlink下载方式作为参考
- 将
imxrt1052-fire-pro\board\JLink_Vxxx路径下的全部文件拷贝
- 覆盖到
RT-Thread Studio安装目录下repo\Extract\Debugger_Support_Packages\SEGGER\J-Link\JLink_Vxxx目录即可
编译下载
- 点击编译按钮，进行工程编译
- 然后选择下载按钮，进行代码的烧录
- 当出现如下提示，恭喜你已经烧录成功
- 打开串口软件，选择好对应串口、波特率，按下开发板的复位按键，输出以下信息：
注意事项
暂无
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