About a.n

a.n · 2019-05-23

Hello!We have choosen the STM32F407/427 for our product, a couple of years ago.It fits with the speed, and also with the possibility to use DMA for mutliple peripherals.Now, as we have found out the hard way, the DMA2 fails while handling ADCs and SD...

a.n · 2019-05-28

Surely willing to discuss that. Most of the time the most of the valuable information is available right on the forums, so it is for the best to get it as complete as possbile.I know the steps are extensive and I'm not happy of it.Removing any of tha...

a.n · 2019-05-28

Here is the final solution that I've got implemented.The DMA2 simply does not work properly, if three peripherals are being used, while one of it is SDIO.Not sure how it fits the errata, as all peripherals are APB, but the SDIO has FIFO so it just mi...

a.n · 2019-05-24

Awesome, thank You for the quick and comprhensive reply.As I read it, the overhead for dealing with DMA is not small, and it might just be another reason to conside dropping the DMA for the ADCs at once (and use IRQ). Oh well.No, the circular DMA is ...

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