英文:
STM32 HAL tick hangs after FreeRTOS mutex creation
问题
在创建FreeRTOS互斥量后，HAL Tick定时器不再增加。我使用STM32CubeIDE 1.11.2作为IDE和CubeMX 6.7.0作为代码生成器，测试平台为Nucleo-F767ZI。
复现步骤：
- 在STM32CubeIDE中创建新的STM32项目，所有设置默认
- 在MX视角中打开ioc文件，使用CMSIS_V2接口添加FreeRTOS支持
- 在main.c中，在
osKernelInitialize()之后添加
osMutexId_t mutex = osMutexNew(0);
HAL_Delay(100);
结果：这段代码应该卡在HAL_Delay()中。
SysTick_Handler再也不会被调用，HAL_GetTick()始终返回相同的值（在我的情况下是10）。
我尝试过使用CMSIS和FreeRTOS互斥体函数，结果都一样。我尝试更改SysTick的时间基准，一样。我尝试使用另一个Nucleo板，也一样。
我错过了什么？
英文:
After creation of a FreeRTOS mutex, the HAL Tick timer is not increasing anymore. I use STM32CubeIDE 1.11.2 as IDE and CubeMX 6.7.0 as code generator, test platform Nucleo-F767ZI.
Reproductibility :
- New STM32 Project in STM32CubeIDE, everything by default
- Open the ioc file in MX perspective, add FreeRTOS support with CMSIS_V2 interface
- In main.c, after
osKernelInitialize(), add
osMutexId_t mutex = osMutexNew(0);
HAL_Delay(100);
Result : this code should stay stuck in HAL_Delay().
SysTick_Handler is never called anymore, HAL_GetTick() always retrun the same value (10 in my case).
I tried with CMSIS as well as FreeRTOS mutex functions, result is the same. I tried changing the time base for SysTick, same. I tried with another Nucleo, same.
What did I miss?
答案1
得分: 0
你的代码中存在中断优先级问题。如果你更喜欢使用HAL_Delay而不是RTOS延迟，那么我建议你为FreeRTOS内核使用不同的时间基准定时器。你可以使用相同的定时器，但我不建议在启动调度程序之前这样做。我还强烈建议在启动调度程序之前不要调用任何FreeRTOS函数。
英文:
You have interrupts priority problem in your code. If you prefer to use HAL_Delay instead of RTOS delay then I would suggest to use different timebase timer for the freeRTOS kernel. You can use the same but I would not recooment doing it before you start the scheduler. I would also strongly not advice to call any freeRTOS functions before you start the scheduler.
答案2
得分: -1
根据我所了解，在osKernelStart之前放置大量代码，尤其是与FreeRTOS调用相关的所有内容，这是一个不太好的做法。
我将所有的初始化代码移到一个任务中，并使用信号量来在初始化完成后仅启动其他任务的循环，这样所有问题都得到了解决。
英文:
From what I have read, it is rather bad practice to put a lot of code before osKernelStart, especially everything related to FreeRTOS calls.
I moved all my initialization code into one task and used a semaphore to start the loops of the other tasks only after the initializations were done, and all the problems were solved.
答案3
得分: -1
HAL的tick使用系统定时器，当未使用RTOS时。调试器是你的朋友。找到HAL_IncTick被调用的地方，并在调试时设置断点。
英文:
HAL tick uses system timer when RTOS is not used. Debugger is your friend. Find where HAL_IncTick called and place break point while debugging.
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