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RHenr's avatar
RHenr
Icon for Occasional Contributor rankOccasional Contributor
1 day ago

Unable to receive OUT packet on USB in device mode

Hello, I am trying to use USB on Cyclone V soc with tinyUSB. I am able to receive SETUP transaction and send device descriptor, but then I cannot receive and acknowledge the next OUT transaction. I...
embedded peripheral
RHenr's avatar
RHenr
Icon for Occasional Contributor rankOccasional Contributor
10 hours ago

Thanks,

sorry, DCTL.sgoutnak is 0 and not 1. And I also have GINTSTS.goutnakeff = 0. The sequence you describe is what I do. I have tried setting DCTL.cgoutnak = 1 just in case but this does not change anything.

The register values just after preparing the transfer are as follows : 

gotgctl 0xd00c0
gintsts 0x4000020 : PTxFEmp, NPTxFEmp
gdfifocfg 0x1f802000
dctl 0,
dcfg 0x8100001
dsts 0x18702
doepctl0 0x80008000
doepint0 0
doeptsiz0 0x80000