STM32 MCUs Embedded software

FreeRTOS portYIELD_WITHIN_API() causes a hardfault, interrupt priorities look correct to me

My program keeps crashing in my uiTask loop, and I figured out the common denominator is a call to portYIELD_WITHIN_API().Here's the relevant code in main. Obviously there are a lot of calls to classes / structs here that aren't shown, but I've sifte...

How to connect with AZURE iothub using STM32F437VIT7?

Hi,I need to connect with AZURE iothub. I'm using SIM7600 for cellular connectivity and STM32F437VIT7 microcontroller. To connect with AZURE I planned to use X-CUBE-AZURE package. This package have ready to run example for STM32L496AGI6 discovery boa...

Can initial stack pointer change the program behaviour with bootloader?

So, I am trying to use this USB mass storage bootloader: https://github.com/sfyip/STM32F103_MSD_BOOTLOADERTo compile .hex files for it, I've already set the flash origin to 0x8004000 and the vector table offset to the same value. I've verified that, ...

I tried to access sd-card from model by enabling freertos in stm32h7b3i but i get fopen error. It worked in stm32f746g-dk which has dma access in sdmmc. where in case of stm32h7b3I it has internal dma but there is no sign of dma link code with sdmmc1

STM32 F1 USBX usage problems

I first refer to the x-cube-azrtos-h7 example on STM32 H7 to migrate ThreadX and USBX. CDC HID, including the combination of the two, have been tested, and they all work normally.Then I ported ThreadX and USBX on STM32 F105RBT6. Currently, they can e...

Bug in Low-Level driver LL_SPI_ReceiveData16

Affected driver library: STM32Cube_FW_U5 v1.0.0 and patch v1.0.2File: stm32u5xx_ll_spi.hFunction affected: LL_SPI_ReceiveData16Bug: Current implementation performs a 32bit access to RXDR register and then casts the result to 16 bits. This leads to un...

LL_ADC_ConfigOverSamplingRatioShift is not using correct ratio mask for ADC3 on STM32H73x CubeMX v6.3.0

Currently there is only:__STATIC_INLINE void LL_ADC_ConfigOverSamplingRatioShift(ADC_TypeDef *ADCx, uint32_t Ratio, uint32_t Shift){  MODIFY_REG(ADCx->CFGR2, (ADC_CFGR2_OVSS | ADC_CFGR2_OVSR), (Shift | (((Ratio - 1UL) << ADC_CFGR2_OVSR_Pos))));}which...

Does the USB as a mass storage device enter a sleep state? if so, how do i prevent this?

The ADCs I'm logging data from occasionally shut off and then come back on and start streaming data. When this happens, the USB seems to have entered a sleep state as the write time for the packet header goes from taking ~20 milliseconds to taking up...