STM32 MCUs Embedded software

USBH_UserProcess never entered

Hello,I'm trying to use the USBH library in my project by taking the corresponding chunks of code from the USB_Host Application example present in the STM32Cube. However, I must miss an important part because the USB_UserProcess is never entered. I m...

Does the HAL library used by STM32F429IGT6 not support SanDisk USB disks

Hi, I'm using STM32F765IITx dual bank 2MB Flash.Boot loader in the first bank and my FW reside in the other bank.

After I've loaded the BL then the FW i encountered the below scenarios: 1-Full chip erased 0xFF in the whole flash.2-Garbage value in bank of FW.3-BL code exist but FW code is erased.I wounder why that happened?some times making repeated power on/off...

Problem after jump from bootloader to RTOS application (Freertos) with call osKernelStart();

Hello,​I have problem after jump from bootloader to FreeRTOS application​I use STM32F09 (HAL) chip.​Jump from bootloader to Freertos application => OK​But when I call "osKernelStart()" board crashedIn debug I crashed in function xPortStartScheduler()...

f_mount freeze the system if _FS_REENTRANT is enabled. I had to disable it in order to mount my USB stick. Anybody know why?

I' m working on an stm32F429discovery board and I want to read an image from an USB stickI initialized the USB stack, registered the MSC class and started the USB. Really CubeMX did it for me calling MX_USB_HOST_Init() and FAT_FS_init at the beginnin...

FMC NOR is extremely slow !

Hello,I run the FMC nor example for stm32h743 eval, with the eval board, and I get very poor timing:I used the original configuration , and only changed DataSetupTime   from 8 to 10 (with the original configuration, the test fails with my eval board...

STM32F303 ADC convert 2 injection channels has some issue. Why 2nd RANK always near 4095?

Hi,I am using STM32F303RE in my application, and I am using CubeMx LL lib to config my STM32,I configured ADC123 in injection mode, all those 3 ADCs are: the rank1 is 1.65V, the rank2 is near 0V, and I checked with my multimeter the voltage are all c...

Unable to start two DMA burst sequentially on stm32f7xxx

Hi ,I am using stm32f7xx eval board.I am using DMA burst mode for Timer1. I have configured timer1 and DMA and start some DMA burst mode in update event. using HAL_TIM_DMABurst_WriteStart().Lets say first DMA burst time is 4000millisecond.Lets say I ...

Using low power with USB interface

Hi I am using the stm32L433 and installed the USB VCP library from CubeMX . I used the HAL as looked like a lot of code for doing it from scratch with registers. Anyway, I have a low power project running on batteries and the USB interface wont be ...

STM32H7 HAL_ADC_DMA_Start function's not working properly

HAL_ADC_DMA_STOP() function stops and disables ADC resources. It also disables DMNGT bits to 00 value to prevent any extra DMA request during STOP process which is normal.But HAL_ADC_DMA_Start() function doesn't set proper DMNGT bits back. They only ...