STM32 MCUs Products

Timer with interruption

Hello, I've an error in the interrupt but I don't see where it can come from.

About SDIO. I am using SDIO on STM32F407 for SD card. Though I am enabling 4-bit mode after initialization, I am not sure if it is going into 4-bit mode. Is there any way we can detect the enabled bus width of SDIO? Thank you.

reading arrow key from UART

Hello, has anyone ever used UART to read arrow key? I tried using STM32 MCU on CubeIDE, but can only get two characters ASCII number 27 and 91 and couldn't get the third character which is supposed to be 'A' for Up key, 'B' for Down key, 'C' for righ...

STM32H753XI. When 2 DMAs are working and writing data from SPI1/2 to SRAM1/2 the received data has errors. When only one DMA is working the received data has no errors. Why?

I am using STM32h753XI.The MCU uses 2 SPI channels (SPI1 and SPI2) in slave receive mode.The MCU uses 2 DMAs channels (DMA1 stream0 and DMA2 stream0) to read the data from SPI1 and SPI2 and write it to SRAM1 and SRAM2 respectively.The input SPI sclk ...

Could somebody please tell me what firmware version is provided on ST8500 (if I order only the SoC...not a dev board) and what are the resources for developing?

BOR vs PVD Detection Logic

We have seen PVD triggers when there is transient load of 1A added on the 3.3Vdc (loaded additional to our design through electronic load) and it triggers when the transient load dips the 3.3V for duration of ~450 micro seconds.We have seen BOR trigg...

Nucleo board with STM32H7A3 - ADC and OpAmp I know the maximum sample rate for direct , fast and slow channels. But what if I use an opamp in the follower mode and connect it internally to ADC. Is my sample rate the same as for slow channels?