STM32H7 HAL Read GPIOC13 with DMA into SRAM

[MKocj.1]

Hello there, I am trying to read GPIO pins (on row C) with DMA into SRAM, using TIM1 as clock

I am using STM32H750B-DK

Essentialy, when TIM1 goes high DMA should read from GPIO to SRAM continuously (until its stopped by a user :))

Here is what I tried so far to read GPIOC with 1Mhz and then check if PIN 13 (Blue Button) is high: https://pastebin.com/gxXSmxHg

Unfortionatly, I cannot get this to work, because it seams user button is never high, even if I press it (and 1Mhz should be plenty fast for my slow button press)

This example is only for one pin, but at the end I would like to read 4pins continuously

I would realy like to use HAL, because then this code could be more portable between STM families

also UART is not important in this example, I only use it for debugging

Hope someone can tell me, what I am doing wrong and why my example doesnt work

[Tesla DeLorean]

PasteBin is blocking..

[Pavel A.]

Maybe, on a phone? For me it does not block. Chrome-like browser on Windows PC.

[FBL]

Hello @MKocj.1​,

Would you please add the useful content from the link at least to help you investigate?

Thank you,