743b614875
* [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
Raspberry PI 3–64 BSP (Board Support Package) Execution Instruction
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Introduction
This document records the execution instruction of the BSP (board support package) provided by the RT-Thread development team for the Raspberry PI 3–64 development board.
Compilation Instruction
Build Environment on Windows
It's recommended to use the env tool to compile the Raspberry PI 3–64 BSP on Windows. Firstly, download the compiler GCC on Windows, from the official ARM website. You can refer to Here.
Here we choose the version "[gcc-arm-8.3–2019.03-i686-mingw32-aarch64-elf].
Unzip the compressed package to the local directory, like "E:/env/tools/gnu_gcc/arm_gcc".
Then edit the file "<rt-thread_directory>/bsp/raspberry-pi/raspi3–64/rtconfig. py", modify the variable "EXEC_PATH" to the compiler path:
EXEC_PATH = r'E:/env/tools/gnu_gcc/arm_gcc/gcc-arm-8.3–2019.03-i686-mingw32-aarch64-elf/bin'
Finally, enter the BSP directory "<rt-thread_directory>/bsp/raspberry-pi/raspi3–64/" and execute the "scons" command.
Build Environment on Linux
The steps to build Raspberry PI 3–64 BSP on Linux is pretty similar to that on Windows, the only difference is that we need to download the GCC on Linux instead, such as the version "gcc-arm-8.3–2019.03-x86_64-aarch64-elf".
Then we unpack the compiler package, modify the file "rtconfig.h" and run "scons".
Execution
Prepare the raspbian SD card
-
Download the raspbian image, for example, "2018–06–27-raspbian-stretch-lite.zip". Unpack it.
-
Burn the SD card on Windows
On Windows, download the burning tool "etcher.io", run it and choose the unpacked image "2018–06–27-raspbian-stretch-lite.img".
When the burning process is completed, put "kernel8.img" into the boot partition to replace the file wit the same name.
- Burn the SD card on Linux
Prepare an empty SD card, plug it in the computer and then execute the command below: "sudo dd if=2018–06–27-raspbian-stretch-lite.img of=/dev/xxx bs=32M conv=fsync"
Note that the device file "/dev/xxx" should be replaced with the real SD card.
Prepare the serial port wire
The BSP uses GPIO 14 & GPIO 15 of raspi 3 as the communication ports, as shown in the following image (The board is raspberry-pi2, which uses the same pins as raspi-3):
The serial port parameters: 115200 8N1, hardware and software flow control is off.
Running Result
Insert the burned SD card into Raspberry Pi, power up, the output information on serial port should be like this:
heap: 0x00020b20 - 0x00400000
\ | /
- RT - Thread Operating System
/ | \ 3.1.0 build Aug 23 2019
2006 - 2019 Copyright by rt-thread team
Hello RT-Thread!
msh >
Peripheral Condition
| Drive | Support | Remark |
|---|---|---|
| UART | Support | UART0 |
| GPIO | Support | - |
| I2C | Support | - |
| RTC | Support | - |
| SDIO | Support | SDCARD |
| SPI | Support | - |
| TIMER | Support | - |
| WDT | Support | - |
| MBOX | Support | - |
| FRAMEBUFFER | Support | HDMI |