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H755 / ADC3 / DMA

UBöke.1
Associate II

Hello,

I'm desperate. Just want to concvert some data with the ADC3 with DMA on a H755.

No chance! DMA doesn't work, and even a cyclic sample only produces the right values for the first turn. After that, only max. resolution is returned. 12 bit => 0x800 as the result.

Can anybody help ?

7 REPLIES 7
AScha.3
Chief

most times same problem: no cache management.

try: switch off D-cache (= not enable d-cache )

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I checked it => CCache and DCache OFF !

ICache... not CCache

 

UBöke.1
Associate II

More or less solved.

and..it was ..?

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UBöke.1
Associate II

Ich weiß es wirklich nicht. Ich habe alles gelöscht, STM-Cube deinstalliert, neu installiert und alle HAL_ Treiber neu aus dem Netz geladen, noch einmal alles eingestellt. Und irgendwie funktioniert es jetzt so, wie es soll.

ok, also eclipse/CubeIDE/STM  standard Verfahren . 🙂

aach, is on Win ?    then Windows standard. 

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