I did the D3 and D4 ports years ago and I am not aware of any other use of those boards. DMA was partially functional then, but was not well tested and was still buggy. There were problems documented in https://github.com/apache/incubator-nuttx/blob/master/boards/arm/sama5/sama5d4-ek/README.txt which look like the same issues with the SAMA5D3x-EK in https://github.com/apache/incubator-nuttx/blob/master/boards/arm/sama5/sama5d3x-ek/README.txt
The D2 was more an effort of several people and was based initially on the D4 (which was based on the D3). On Mon, Sep 12, 2022 at 8:30 AM TimH <t...@jti.uk.com.invalid> wrote: > Aargh...too quick to retract. I think definitions for ATSAMA5D3 and > ATSAMA5D4 are swapped and there *may* be inconsistencies, based on a > comparison to datasheets. I don't think anyone has used it as I am 99% sure > it wouldn't have worked as best as I can tell. File with issues is: > > arch/arm/src/sama5/sam_dmac.h > > It was the right file I was looking at, got confused by the presence of > sam_xdmac.h as well as sam_dmac.h. > > I will had "# warning" for ATSAMA5D3 and ATSAMA5D4, and add a new section > for SAMA5D2 which at least I hope to be able to check and confirm as > working. > > >-----Original Message----- > >From: TimH <t...@jti.uk.com.INVALID> > >Sent: 12 September 2022 14:54 > >To: dev@nuttx.apache.org > >Subject: RE: SAMA5D3 and D4 DMA > > > >Scrap that for now - was looking in the dma not xdma files > > > >>-----Original Message----- > >>From: TimH <t...@jti.uk.com.INVALID> > >>Sent: 12 September 2022 14:14 > >>To: dev@nuttx.apache.org > >>Subject: SAMA5D3 and D4 DMA > >> > >>I am reworking DMA to get it working for the SAMA5D2. It seems to me > >>that there are also errors and inconsistencies in the DMA code for the > >>SAMA5D3 and D4 family. > >> > >> > >> > >>For now I have added "# warning" pre-processor statements. I have no > >>means to check ATSAMA3 or ATSAMA4 devices - so unless someone can > >>confirm that DMA does actually work for those 3 families and I've > >>misunderstood something I will suggest that the warnings remain in > >>place when I > >eventually > >>submit a PR for my work. > > > > >
