STM32 MCUs Products

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Resolved! STM32H755 FMC LCD working on M4 core but not on M7 core

I'm using an STM43H755 (on a NUCLEO-H755ZI-Q) and I need to send pixels to an external LCD module (320x240, 8bit MCU bus on ILI9341 controller, 3.3V compatible).I've used plenty of single core MCUs like F0, F4, F7 and others from ST in the past but I...

giorgio by Associate II
  • 1494 Views
  • 3 replies
  • 2 kudos

Unable to getting started with new STM32H747I-DISCO board

Hi Community,I recently received a new STM32H747I-DISCO board, but I’m encountering some issues. When I plug in the CN2 USB, no display shows up. I've tried reprogramming it using the STM32H747I-DISCO compiled demo binary but received Error: failed t...

iFoX by Associate II
  • 1041 Views
  • 4 replies
  • 0 kudos

I2C slave no ack when not in debugging mode.

Dear Community.Short Rant (sorry, need to let off some steam):I wonder, why there is not more questions on I2C-slave here. What started as a "cool, I will use the HAL, greater people than me have written these libs" has now turned out to be my worst ...

Resolved! Stm32H723 Ethernet DMA tail pointer

Hi,I understand this has been discussed before, but can we please get an official explanation of how the dma tail pointer works in the Stm32H7 eth mac ip block? It's extremely difficult to write software to support the eth mac when the docs and examp...