STM32 MCUs Products

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STM32H5 GPIO toggling performance

I use STM32H562 and/or STM32H503 (nucleo board). When try in loop only this line: while (1) {   GPIOB->ODR ^= GPIO_PIN_6;     } The frequency on pin is only 12.5 mhz. I use external quartz 8mhz (and 24mhz on nucleo) I config  to 250mhz (with build...

Brussl by Associate III
  • 5045 Views
  • 19 replies
  • 1 kudos

Resolved! ADC3 data DMA transfer error

Hello members,I have problem with functionality of DMA data stream for ADC3 peripheral. I have H743ZIT controller. ADC1 with DMA is fully and properly working for each channel. I have placed ADC data array to RAM_D2 section for ADC1. For ADC3 I have ...

sagit_0-1705511284067.png sagit_1-1705511325451.png
sagit by Associate II
  • 4164 Views
  • 8 replies
  • 0 kudos

Resolved! STM32F767 SDMMC no DMA callback

Hi AllI want write on the SDMMC using HAL_SD_WriteBlocks_DMA system call. The function itself works, the sector on the SD is written, but no callback function (HAL_SD_TxCpltCallback) is called.Did someone experienced such trouble ?Thanks  

axinno by Associate II
  • 1083 Views
  • 3 replies
  • 1 kudos

Resolved! How many devices can be connected on SPI bus

Hi,I would like to know what is max number of SPI slaves I can connect to a single SPI bus of STM32F779? I understand that using the chip select pin I can select respective slaves to operate. But is ther eany recommendation from ST that ideally , I s...

SRoy by Associate II
  • 15458 Views
  • 2 replies
  • 0 kudos

How to run UART on STM32H755 with speed above 1M baud rate

Hello Experts,I am having problem with uart on stm32h755, nucleo kit.I use uart1 and uart2 to communicate with each other using DMA.When I set the baud rate above 1M baud rate it doesn't work. Below is the clock configuration.And here is the UART con...

Screenshot 2024-01-20 224149.png Screenshot 2024-01-20 224511.png Screenshot 2024-01-20 224436.png
Ruồi by Associate III
  • 2417 Views
  • 5 replies
  • 5 kudos

Remapping SPI pin

Hi i m using STM32H750XBH and i would like to remap SPI pin to the following pin out, i m using SPI3 full duplex master, HW NSS output, could anyone advise is this is feasible? Or i need to following the pin out from the standard H750 ioc pin arrange...

Resolved! Downloaded STM32H7A3 program runs but doesn't stay flashed

I'm bringing up a new board using a STM32H7A3. I've developed, downloaded, debugged and run lots of test programs from the VisualGDB IDE.  Now I'm working on the main application. I can still develop, download, debug and run from VisualGDB but when I...

magene by Senior II
  • 2766 Views
  • 9 replies
  • 7 kudos