Reply To: Please help . OSSC No test pattern, no LCD text, both LEDs lit

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#46784
radiokid
Participant

Right, well that was strange.

Installed v17.1 of the Quartus programmer software. Could’nt work out what I was supposed to do, so I just followed the JTAG firmware update instructions to the letter. Flashed version 0.87-aud as there was no JTAG 0.88-aud available. It seemed to be going ok, then I got the messages below

Info (209060): Started Programmer operation at Sat Apr 17 22:43:45 2021
Info (209016): Configuring device index 1
Info (209017): Device 1 contains JTAG ID code 0x020F20DD
Info (209007): Configuration succeeded — 1 device(s) configured
Info (209018): Device 1 silicon ID is 0x14
Info (209044): Erasing ASP configuration device(s)
Info (209023): Programming device(s)
Info (209021): Performing CRC verification on device(s)
Error (209040): Can’t access JTAG chain
Error (209027): Verification failed for device number 1
Error (209012): Operation failed
Info (209061): Ended Programmer operation at Sat Apr 17 22:44:48 2021

I unplugged the OSSC and switched if off and on again, and its working! Well I have stuff on the LCD screen and I can operate it with the remote etc. Bit late to plug it into anything at the moment but I will try tomorrow. Since its working I decided to update to 0.88-aud the SD card method. And that worked as well. So…. yeah I don’t know how I got it to work tbh…