Arduino for STM32

fpiSTM wrote: ↑Wed Feb 03, 2021 4:05 pm Well, currently, I've no time to investigate on this.
I have to work on STM32SD in the coming month, I will investigate that during this slot. Anyway, based on all the last subjects around the SD, I think there is a wrong use of the core/library and also not have all info.

Ok thank you fpiSTM

SDMMC timer ? If clock are well configured I don't see anything which can conflict. This simply feed the IP. Yeah it must be something to do with the clock configuration, i'm not sure why, here's my clock setup anyway: #pragma once extern "C" void SystemClock_Config(void) { RCC_OscInitTyp...

I guess that the TIM2 timer and SDMMC timer are conflicting with each other for clock resources maybe?

Yes SDMMC1 has a global interrupt... In your example (from cubeMx) the SDMMC is not checked. We simply do not use it and use sequential way. Do not try to override the configuration, the library is here to abstract all HALL stuff. Anyway in your case, try to remove all codes from your timer ISR, I ...

Bump - If i change the TIM2 clock speed from 16000 hertz to 1000 hertz it works

If i remove the TIMER configuration completely it works, but the interrupts don't seem to be fixing anything

fpiSTM wrote: ↑Wed Feb 03, 2021 1:39 pm AFAIK theSTM32SD does not use any interrupt...
My guess is you have a pin mapping issue...

Hmm, it says here it has a global interrupt?

I tried putting "HAL_NVIC_EnableIRQ(SDMMC1_IRQn);" after the TIMER configuration but it didn't do anything.

fpiSTM wrote: ↑Wed Feb 03, 2021 12:56 pm This is possible that IRQ prio can interfere. Up to end user to ensure prio.
https://github.com/stm32duino/wiki/wiki ... ity-values

How do i configure these priorities? - The SDMMC doesn't have a interrupt priority?

Bump - The problem goes away if i disable the HardwareTimer TIM3?