STM32 MCUs Products

STM32L1 SPI always busy after DMA TX/RX

I am using an STM32L151VET7 as a full-duplex SPI slave, and after using HAL_SPI_TransmitReceive_DMA and receiving/transmitting any number of bytes, the SPI remains busy, and further calls to HAL_SPI_TransmitReceive_DMA return HAL_BUSY. Upon transmiss...

ADC + DMA (One-Shot Mode - SW-based Trigger)

Hello,I would like to use ADC with a group of several channels (ScanMode = Enabled) along with the DMA. However, I would like to avoid to use the DMA in circular buffer mode. I have seen so far that most of the examples and external literatures are b...

STM32L412 issues...

I have built many STM32 boards and usually bringing them up is a snap. This time I'm having trouble.... The chip is the 48-pin STM32L412CB. When I boot in DFU mode (it does so by default) I get dfu-util: Error during special command "ERASE_PAGE" get_...

Bug in BSP driver for STM32H743-EVAL onboard LEDs

In case anybody wondered why the red LED of STM32H743-EVAL does not work unless I/O extender is enabled - here is the fix.In this placehttps://github.com/STMicroelectronics/STM32CubeH7/blob/beced99ac090fece04d1e0eb6648b8075e156c6c/Drivers/BSP/STM32H7...

STM32L476RG. I write 70bytes to an SD card (8GB) using SDIO 4-bit mode every 5-seconds. After exactly 390 writes the program jumps to the HardFault loop. If I remove the SD card the program runs forever so the problem is definitely the SD loop.

how can i update firmware over any CAN bus?

Dear Madam/Sir,we are using STM32F4 series microcontroller. ı wonder that how can i update firmware over any CAN bus. Do you have any sample code or tool to do this? Really i dont know how can i do. There is no answer about this issue on internet.

System clock configuration using register level program.

We are working on an existing project, in which our microcontroller's flash size was exceeding the value of our code size. So we decided to move to a register level program.We did system clock configuration at 64 MHz, while debugging after step no 3 ...

NUCLEO-L476RG: Write ADC values into SD_CARD using SPI

Good Morning. For my thesis work, I have to develop a sensor for seismocardiography based on sensortile. Being unfamiliar with microcontrollers, I'm running some tests using an L476RG nucleo board.I created a project that foresees continuous analog-d...