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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
nRF52840-PCA10056 BSP说明
简介
该文件夹主要存放所有主芯片为nRF52840的板级支持包。
目前支持的开发板如下
| 支持开发板型号 | 开发板上外设 | 备注 |
|---|---|---|
| PCA10056 | QSPI FLASH, 4 button，4 LED | UART0 |
| ARDUINO NANO 33 BLE | 3 LED | 需要连接jlink shell采用RTT 方式交互 |
相关开发板资料原理图整理在BSP_BOARD_NRF52840
选择开发板请使用menuconfig -> Hardware Driver Config -> Select Bsp board
选择对应的开发板
本文主要内容如下：
- 开发板资源介绍
- 进阶使用方法
开发板介绍
PCA10056-nRF52840是Nordic 官方的开发板，搭载nRF52840 芯片，基于ARM Cortex-M4内核，最高主频64 MHz，具有丰富的外设资源。
开发板外观如下图所示
PCA10056-nrf52840 开发板常用 板载资源 如下：
- MCU：NRF52840，主频 64MHz，1MB FLASH ，256kB RAM
- MCU 外设: GPIO, UART, SPI, I2C(TWI), RTC,TIMER,NFC,QSPI,PWM,ADC,USB,I2S
- 板载设
- LED：4个，USB communication (LD1), user LED (LD2), power LED (LD3) 。
- 按键：5个，4个USER and 1个RESET 。
- USB: 1个
- 常用接口：USB device、Arduino Uno 接口
- 调试接口：板载 J-LINK 调试器。
开发板更多详细信息请参考NORDIC官方PCA10056
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 | GPION |
| UART | 支持 | UART0 |
| PWM | 支持 | 支持 |
| SPI | 支持 | 支持 |
| QSPI | 支持 | 支持开发板上QSPI FLASH |
| RTC | 支持 | |
| ADC | 支持 | |
| SEGGER_RTT | 支持 | 打开默认segger_rtt为console |
进阶使用
此 BSP 默认只开启了 GPIO 和 串口 0 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：
-
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。
支持其他开发板
客户可以将自己的开发板的.config文件和board/Kconfig文件到board/$(board_name)下面添加README.md即可，使用的时候替换.config文件
注意事项
联系人信息
维护人:
- [supperthomas], 邮箱：78900636@qq.com