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Forum Posts

STM32G4 ADC clock

Hi, Most of the STM32G4 CubeMX examples configure the ADC clock as synchronous clock mode divided by two,and the AHB ADC bus clock as 150MHZ. If I understand correctly, the ADC clock would be 75 MHZ for this configuration. The problem is that STM32G...

Asantos by Senior
  • 463 Views
  • 0 replies
  • 1 kudos

STM32 I2C Multi-master problem

I'm seeing a problem which seems to be related to the one discussed here: https://community.st.com/s/question/0D50X00009XkgoYSAR/stm32-i2c-multimaster-hardware-bug In my case though I'm not using DMA, I'm just using interrupt driven I2C but the sympt...

SGars by Associate II
  • 939 Views
  • 1 replies
  • 1 kudos

HAL_I2C_Master_Receive ?

Dear Members,Is this function :void max30100_FIFO_ReadBytes(uint8_t* Data)   {     //================READ FIFO DATA REGISTER====== buffer_tx[0] = 0x05;//FIFO DATA REGISTER //page 16 datasheet //write one byte to MAX30100, 0xAE = Write to MAX3010...

Internal Temperature STM32H7 delivers wrong value

Hi all,I need to measure the internal CPU temperature sensor from the STM32H743. I activated the ADC3 using STM32CUBEMX (V. 5.0.1) and selected Temperature Channel.However the calculated temperatures are far too high. When switching on the cooled sys...

GS1 by Senior III
  • 5478 Views
  • 18 replies
  • 0 kudos

Quadrature encoder integration

Hi there​I​ am trying to integrate a quadrature encoder using STM32 cortex m mcus.​I could not get enough clearance reading the manual several times. I don't have an oscilloscope, which is why I need to rely on specifications rather than trial and er...

FEke by Associate
  • 798 Views
  • 1 replies
  • 0 kudos

Send SPI frame through DMA triggered by timer?

Hello.I want to implement low jitter SPI polling of an external sensor with STM32F4Disco board.From ref. manual it is not completely clear if it is possible to do multiple SPI transmissions (send any arbitrary number of bytes) after a single (timer) ...

PVes by Associate
  • 750 Views
  • 3 replies
  • 0 kudos

Resolved! STM32F767ZI CAN filer/banks configuration for 3 cans

Dear support,We use 3 cans in STM32F767ZI board and have some problems with filter & banks configurations.We use FilterScale = CAN_FILTERSCALE_32BIT and CAN_ID_EXT for transmit/receive data. We would like to receive data by the following way: CAN1 sh...