About BVu

BVu · 2021-04-15

I register MDMA call backs, for example XferBufferCpltCallback, XferBlockCpltCallback, etc. using the HAL_MDMA_RegisterCallback() function. But the callbacks never got hit. These callbacks are called from stm32h7xx_hal_mdma.c/HAL_MDMA_IRQHandler(). H...

BVu · 2021-03-31

I'm using STM32H745. Both cores run FreeRTOS 10.2.1. Timebase for CM4 is TIM6, and CM7 is TIM7. For some reason, on CM4, from the time osKernelStart() is called in main() until StartDefaultTask starts to run is about 5 seconds ( i turn an LED on just...

BVu · 2021-03-31

BVu · 2021-02-18

I'm using stm32h745. CubeMX Clock Configuration shows APB1 and APB2 clocks are 120MHz, and APB1 and APB2 Timer Clocks are 240MHz (2 x 120). When i call HAL_RCC_GetPCLK2Freq(), HAL_RCC_GetPCLK1Freq(), they indeed return 120MHz. I use general purpose t...

BVu · 2021-01-07

For peripheral configuration, CubeMX allows me to assign the same peripheral (ethernet, I2C, etc.) to both Cortex-M7 and Cortex-M4 runtime contexts. Say, for ethernet, what does it mean if i assign the peripheral to both? Since i'm allowed to select...

BVu · 2021-05-06

Hi @Walid ZRELLI ,When i tried to reproduce the problem on a NUCLEO-H745ZI-Q, I discovered that the delay came from StartDefaultTask calling MX_LWIP_Init(). MX_LWIP_Init() has a big delay in it so everything that follows is impacted by the delay. Th...

BVu · 2021-04-20

Hi @Khouloud OTHMAN,Thanks for confirming. Is the issue limited to the dual core H7? Or the singe core H7 is affected as well?

BVu · 2021-02-18

Sorry for the post. The board has the wrong HSE crystal.

BVu · 2021-01-07

Thanks for your answer. And you are right. Run time context means which MCU controls the component at run time. And indeed context assigment will cause the code to be generated in the context (M7/M4) code tree. But since CubeMX does let me assign any...

BVu · 2021-01-04

The cmsis->FreeRTOS priority map is done in cmsis_os.c, makeFreeRtosPriority().

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STM32H745, MDMA_IRQHandler() is missing in stm32h7xx_it.c

STM32H745 CM4 FreeRTOS scheduler takes a long time getting started

In CubeMX 6.1, 6.1.1, 6.2, the feature "<Ctrl+Click> To Show Alternate(s)" has been broken. At least it doesn't work for me which makes pin assigment difficult. Has anyone seen this?

STM32H745 Timer frequency problem

Dual core STM32H745, runtime contexts assignment.

Re: STM32H745 CM4 FreeRTOS scheduler takes a long time getting started

Re: STM32H745, MDMA_IRQHandler() is missing in stm32h7xx_it.c

Re: STM32H745 Timer frequency problem

Re: Dual core STM32H745, runtime contexts assignment.

Re: FreeRTOS task priority versus CMIS_RTOS v1