STM32 MCUs Products

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Resolved! Using both I2S and SDIO

I want to play audio on STM32F4 Discovery board. Audio is stored in SD card which connected by SDIO. On discovery board, I see below connections.I2S3_SCK -- PC10 -- (SCLK) CS43L22I2S3_SD -- PC12  -- (SDIN) CS43L22but PC10 & PC12 are also connected to...

Nico3 by Senior
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  • 4 replies
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High-speed external (HSE) clock via external 25MHz Abracon crystal. What is a suitable value for the external resistor (Rext.) ?

HelloI'm using Abracon 25MHz( ABM11W) crystal for HSE clock on STM32H750.CL1 and CL2 are set to 12pF after some calculations. And it works on the prototype.Question is regarding the resistor do reduce/control driving level to this crystal. I have bee...

BHell.1 by Associate II
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  • 1 replies
  • 0 kudos

USB Virtual Com to send/receive message

I have enabled USB Device FS and successfully use it as a virtual com port.I now need to determine the best way to send messages from master to slave over this port, and how I will handle potentially corrupted data, timeouts, and how enabling CRC wil...

LMorr.3 by Senior II
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  • 6 replies
  • 2 kudos

Resolved! NUCLEO-F756ZG SPI1 issue

Dear ST,I try to use SPI1 in full-duplex slave mode with hardware NSS and interrupts.Interrupts work fine, the only problem is that data is all 0After connecting the logic analyzer I noticed that the CS and SCK signals are ok but the MOSI and MISO ar...

AHape.1 by Associate II
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  • 7 replies
  • 3 kudos

Resolved! I2S and DMA HAL problem (DMA trigger only once) STM32H7

Hello,I'm trying to use the I2S transceiver on a STM32H7.I did a first simple experiment using the HAL function: HAL_I2S_Receive_DMAI use a basic loop in the main:while (1){  if (i2s_bsy == 0) {    i2s_bsy = 1;    i2s_status = HAL_I2S_Receive_DMA(&hi...

mkhairy by Associate II
  • 1836 Views
  • 3 replies
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Resolved! not able to read WHO_AM_i Register value.

i am using IMU ICM-42688-P sensor communicating with stm32 GOB1CET6N board using spi protocol. but, i am not able to read WHO_AM_I Value for more than 2MHz frequency. i have tried all settings but nothing is working. datasheet of sensor says SPI work...

Rohit007 by Associate III
  • 1832 Views
  • 2 replies
  • 1 kudos

Resolved! Problem with switching pins

Hi to all!I have the following question: why do the relays in the circuit start switching when I connect the STM32F1 microcontroller to the computer through the programmer?And similar happens when I initialize RCC. As if all the contacts are being ch...