STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

HAL_I2C_Master_Receive disable IRQ for long time

Hi use when i use middleware and Softwares packe witch X-CUBE-MEMS1 for read a accelerometerBut when i add this code my timer interrupt (at 10khz) miss interruptsAnd i watche in HAL_I2C_Mem_Read  __disable_irq(); /* Read data from DR */ ...

Resolved! Trying to write 16 bits to a LCD via STM32H7 FMC memory controller end up in 4x16 bits write strobe [solved]

I'm trying to write to a single register of a LCD controller using the 16 Bit FMC peripheral in SRAM mode.[update)My assumption at the moment is that the controller writes 64 bits even the command STRH should only write a half word (16 bits).When wri...

0693W00000FDQTAQA5.png 0693W00000FDQUDQA5.png
Microman by Associate III
  • 3352 Views
  • 2 replies
  • 2 kudos

EXTI11 with SPI1 on STM32U575

I am using the gpio interrupt (EXTI) and trying to tie with SPP1. Only EXTI4_TRG and EXTI9_TRG are defined in stm32u5xx_hal_spi_ex.h for group1. Is that possible to define EXTI11_TRG in the group1? 

winzaw_0-1692485553919.png
winzaw by Associate
  • 745 Views
  • 1 replies
  • 0 kudos

Resolved! Error Detection for SPI DMA Master->Slave

Hello,I have an STM32F373 and setup a master uC and slave uC to communicate over SPI with DMA enabled.  I send a fixed packet size of 10bytes and have set the DMA size to 20bytes in case I need a double buffer for my solution.  I  enabled a SS/CS out...

LMorr.3 by Senior II
  • 2827 Views
  • 4 replies
  • 1 kudos

Best way for 2 STM32 MCUs to communicate

Hello,I am considering using 2 STM32F373 in my project.  One uC will be for a control panel, and the second uC will accept commands to produce DAC and PWM output.  What is the best way to have them exchange data?  Should I use SPI?  I see i2c is not ...

LMorr.3 by Senior II
  • 4426 Views
  • 8 replies
  • 1 kudos

Resolved! Facing an issue with power on reset

Hi, I was facing one issue..while running firmware in my device (stm32f4)in the middle suddenly controller got restarted, when I checked that RCC reset status register and I got to know that power on reset ,but I didn't restart my device only , May I...

Resolved! stm32h7 uart i2c GPIO_InitStruct.Pull = GPIO_PULLDOWN;

para aplicar  i2c alternate function open-drain GPIO_InitStruct.Pull = GPIO_PULLDOWN o should be GPIO_PULLUP  (what diferencetween both) and uart alternate function push-pull should be pull-up or pull-down what diferencetween both?

wjian.2 by Associate III
  • 1643 Views
  • 1 replies
  • 0 kudos

Resolved! STM32H747AI

Hello,I am relatively new here and would like to try to design a STM32H747AI board with LiPo battery power supply for wearable devices with features like OLED microdisplay, WiFi+Bluetooth and GNSS module. Since I would like to run a GUI on it with sm...