Problem with uploading ossc firmware with TJAG

[croc]

Hello everyone,

I just assembled one of the boards.

I try to upload the firmware but when I upload the file it fails directly. I get the error first “Error (209040): Can’t access JTAG chain
” following up with “Error (209012): Operation failed” then I get this “Info (209061): Ended Programmer operation at Wed Jan 22 01:24:25 2020”

Then I try to do an autodetect and I get this image.

error during test

What can I do to resolve this ? Already thank you for your reply.

[marqs]

I’d check the JTAG lines (TCK, TMS, TDI, TDO) for any short-circuits or missing pull-ups/downs as shown in the schematic.

[Author]

Posts