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WHY DOES I2C DMA NOT WORK

simply trying to read 9 bytes from a I2C sensor on my 446re necleo boardif I use non dma I can read data fineHAL_I2C_Master_Receive( &hi2c1, Sensor_Adr << 1 | 0x01, I2C1_DATA , 9, HAL_MAX_DELAY );this works fineBUT DMA IS BROKEN OR VERY BUGGYALL THIS...

JHERI by Senior
  • 1873 Views
  • 6 replies
  • 0 kudos

How to use the 'HAL_UART_Receive_IT' within a function?

Hello,I'm working with an STM32G4 MCU and I want to listen the UART3 with interruption. I am testing with a code which changes the color of a led. The following code works fine ://main.c   #include "main.h"       FDCAN_HandleTypeDef hfdcan3;   FDCAN_...

Marco S by Associate II
  • 8424 Views
  • 11 replies
  • 1 kudos

SPI Compatible ADC how to configure in Stm32?

Hello,I have to interface the ADS7046 12-Bit, 3-MSPS, Single-Ended Input, Small-Size, Low-Power SAR ADC. Spi compatible ADC 12 bit resolution and MSPS.1.How to set its data size in spi configuration?2.In datasheet they did not give the clock polarit...

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MDeva.1 by Associate II
  • 716 Views
  • 2 replies
  • 0 kudos

Hi ST community, I would like to use CH340G USB UART converter for programming STM32F446RE Microcontroller. How can I do this? Any advice or idea about this? Thx a lot. :)

Normally I use ST-link for programming. But I can not see data in serial port on computer. I use TMS,TCK,RST pins for programming. I would like to solve this issue for my new design. Could help me please? What I need to learn exactly ?

AElma.1 by Associate II
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  • 2 replies
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Resolved! Is there a filter in STMCU Finder to get only FDCAN parts ?

In the MCUFInder application, I can filter on the CAN bus, but it doesn't get the MCUs having a FDCAN controller.Is there a way to get only the ones having FDCAN ?Example : if you check one CAN controller, you don't get the STM32G0B1 who has FDCAN.I ...

GFalc.2 by Associate II
  • 887 Views
  • 3 replies
  • 0 kudos

Resolved! STM32G0B1 programming Option Bytes stopped after OBL_Launch

The MCU stops when the program reaches this line (FLASH->CR |= FLASH_CR_OBL_LAUNCH;) in the function below.The option bytes I want to write are at the moment still unchanged to the delivery state. Later they will be changed to RDP Level 1.void Option...

FRieb.1 by Associate III
  • 2843 Views
  • 5 replies
  • 0 kudos

UART RX Interrupt disable

Hello,I want to disable the uart rx interrupt during transmitting the data like the following flow.UART Rx interrupt disable(Only uart rx interrupt)UART Data TxUART Rx interrupt enableWhich HAL Library I could use for this process?Thanks

Kim.Andy by Associate III
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  • 1 replies
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stm32f373r8t6 - CAN not working at 1Mbit / s

Hello forum users!Created a project by example[url] https://istarik.ru/blog/stm32/159.html [/ url]Slightly corrected, so that a new frame is sent every 10 msec.The project works at (except one) any speed (100kbit - works, 500, 800 - works).Data is tr...