STM32 MCUs Embedded software

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Resolved! Can't make printf via USART work

I'm using an STM32U5A9J-DK and I've followed this guide step-by-step https://community.st.com/t5/stm32-mcus/how-to-redirect-the-printf-function-to-a-uart-for-debug-messages/ta-p/49865From the docs https://www.st.com/resource/en/user_manual/um2967-dis...

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nico23 by Senior III
  • 181 Views
  • 1 replies
  • 0 kudos

Resolved! Sending UART messages between two boards

Good morning, I need to connect two h7a3zi-q board via uart (only one way required), but by only connecting tx1->rx2 the programs run but I get empty strings, and by also connecting the grounds of the two boards the tx program gives HardFault. I'm su...

Jack_DB by Associate
  • 361 Views
  • 8 replies
  • 10 kudos

Resolved! Initialization of OpAmps in STM32G474

Hi,I'm going to use four different OpAmps in the STM32G474, namely OPAMP3, OPAMP4, OPAMP5, and OPAMP6.At this moment I try to initialize all four OpAmps. The first three work perfectly well, the initialization of OPAMP6 results in a problem. The Stat...

ErX by Associate II
  • 238 Views
  • 4 replies
  • 1 kudos

ADC not started by TIM output trigger

I'm using the STM32H562. I'm trying to start an ADC conversion using output compare on a specified channel during the middle of an up-down count of a timer.Timer used: TIM8 running at 250 MHz, generating a 20 kHz periodChannel: 4Timing: At the peak o...

Thoufiel by Associate III
  • 290 Views
  • 5 replies
  • 1 kudos

Resolved! STM32U5G9J-DK2 & Flash Memory

All, My team is looking at designing a PCB around the STM32U5G9-DK2 development board and are running into some issues. The development board uses a flash memory IC "MX66LM1G45GXDI00" but the BSP example driver for the board only contains "MX66UW1G45...

STM32H755ZIT6 Resource Unavailable

Hi everyone,We are using STM32H755ZIT6 with external QSPI Flash in memory-mapped mode.After long runtime, we see an issue where the RTOS event returns resource unavailable (-3) even though the UART buffer has received complete data. We suspect it mig...

STM32F103 CAN Polling Mode

Hello everyone,I’m working on an STM32F103 microcontroller using CAN in polling mode (without FreeRTOS).From my testbench, I transmit 16 CAN messages cyclically every 100 ms.Each message has a unique CAN ID.My goal is to:Receive all 16 messages withi...

Low TCP/IP Data Transfer Rate Using LWIP

Edited by a ST moderator to be comliant with the ST community rules. In next time please use </> button to paste your code. Please review How to insert source code. Hi, I have a video application using F767 with LWIP and without RTOS. The custmized b...

Chao by Senior II
  • 418 Views
  • 7 replies
  • 2 kudos