STM32 MCUs Embedded software

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USBX CDC ACM Write problem

Hello everyone,I'm developing an application using USBX CDC ACM class in standalone mode. I've written an execution loop for scheduling USB stack operations and there are no problem with READ transaction; i'm able to receive correctly every data from...

Resolved! SD card operation on STM32N6570-DK

Hi,1. I have my own application (migrated from H7 to N6) with FileX writing to the SD card in real-time.And I see that 4-bit data bus is unusable at all (a lot of disk errors).The 1-bit data bus in NORMAL mode works sometimes. HIGH-SPEED is not worki...

ERROR by Senior
  • 469 Views
  • 3 replies
  • 0 kudos

Resolved! How to fix "multiple definition of `errno"'?

I try to create a new project, nothing is written in main.c! It is a first check after setting up 'LWIP', 'SDIO' and Freertos in the GUI and got this mistake!multiple definition of `errno'; ./Middlewares/Third_Party/LwIP/system/OS/sys_arch.o:/home/de...

DK.7 by Senior
  • 12963 Views
  • 23 replies
  • 3 kudos

Resolved! Classic USB printer

Hi everyone,I'm currently working on a project to turn an STM32 microcontroller into a USB printerdevice. I have spent a considerable amount of time searching for a comprehensive guideor a complete implementation for the classic USB printer device cl...

MJM1 by Associate
  • 258 Views
  • 1 replies
  • 1 kudos

Resolved! Driving DAC too fast

I've got an STM32G491RE on a NUCLEO-G491RE board and I'm driving the DAC using TIM4's TRGO and pulling values out of a memory buffer using DMA.  It was a bit of a challenge getting set up, but now that it's running it's beautiful.What's weird is that...