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Use HAL_SPI_Receive_DMA receive data. Sometimes the received data shift 3 bytes. Why? The board is STM32F750, build as SPI slave.

SPI slave receives data of unknow size.When SPI master gives a rising edge, SPI slave detects the rising edge and starts HAL_SPI_Receive_DMA(define a large size amount of data to be received). When SPI master gives a falling edge, SPI slave detects t...

Joey.z by Associate
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  • 1 replies
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ADC + DMA convCplt and convHalfCplt

Hi,I am trying to use a circular DMA to transfer ADC samples on STM32L4R9VI.I configured a 3.2 Msps sampling frequency, which means that HAL_ADC_ConvCpltCallback and HAL_ADC_ConvHalfCpltCallback must be called each 10 ms for a 64000 elemets buffer.Ho...

0693W00000BabBbQAJ.png 0693W00000BabBqQAJ.png
ABouk.1 by Associate III
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  • 1 replies
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F767zi UART

I tried 2 demo printf using HAL and UART Tx using LL from your examples. LL demo runs ok and getting message display on Serial COM console. HAL printf demo got not message display. Any suggestion? I hv another board NUCLEO-F411RE works ok for HAL UAR...

PLau.1 by Associate II
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  • 7 replies
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Resolved! HAL_I2C_IsDeviceReady = HAL_ERROR

Hi,i'm trying to connect an STM32L072cz mcu ( as a master ) to a gas-module (as a slave) which 7-bit address from data sheet is "1100101b",Wiring, pull-up resistors are placed correctly,i'm trying to test if the communication is well established betw...

0693W00000BaRalQAF.jpg

STM32F205,UART DMA transfer stuck after a while

Hello to everyone,Thank's to the people who will take time to read my problem.To be short, I'm working on a system which embed a STM32F205 MCU. This system can communicate with other similar systems by exchanging UART messages over an RS485 physical ...

BSELL.11 by Associate
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  • 3 replies
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Resolved! Problem with initialising I2C bus in different files

Hi, I am working with STM32H747-Disco and I am currently working with I2C bus. My I2C bus is working perfectly fine and I can see the communication. I just have main.c file and everything is there. I am planning to have different file for the initial...

SLuit.1 by Associate III
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  • 3 replies
  • 0 kudos