About WJans.1

WJans.1 · 2020-09-20

I'm new to using the STM32, coming from AVR. I'm trying to switch in order to take advantage of DMA but I can't get it working. I have a Nucleo STM32F411re.I've generated a new project, configured a few pins on GPIOC as output, configured TIM1 to u...

WJans.1 · 2020-09-24

If I put the gpio_data array inside `int main(void) {}`, after `USER CODE BEGIN 2` then it works. If I put the gpio_data array in the private variables at the top in `USER CODE BEGIN PV` then it stops working.

WJans.1 · 2020-09-24

Just moving the dma buffer out of the main block breaks this. I guess it's something to do with where the array is located in ram but I'm not clear on how to fix that.

WJans.1 · 2020-09-21

Thank you so much -- this worked for me.I also got it working with ODR with some slight changes, below.Now I just need to get it working with interrupts for double buffered transfers but at least this gives me some confidence. Maybe it's time to jump...

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Unable to get DMA to GPIO working on STM32F411

Re: Unable to get DMA to GPIO working on STM32F411

Re: Unable to get DMA to GPIO working on STM32F411

Re: Unable to get DMA to GPIO working on STM32F411