Many thanks.FTrevorGowen wrote: ↑Fri Jul 24, 2020 4:19 pm@blippy, for future reference you may find these notes/tests about/of a number of USB-to-Serial TTL devices of interest:
https://www.cpmspectrepi.uk/raspberry_p ... pters.html
Ah, thank you!LdB wrote: ↑Tue Jul 14, 2020 12:26 pmGenerally you don't read anything in the destination until the DMA transfer complete is signaled.
If you just launch a DMA transfer and then go read the destination memory immediately unless the transfer is really small you are pretty much guaranteed to read junk.
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Partition not found: usmd1-1