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sipeed / TangNano-9K-example

TangNano-9K-example project
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BL702 UART firmware update on Tang Nano 9k #7

Closed charkster closed 2 years ago

charkster commented 2 years ago

I tried to drive 1Mbps uart to the BL702, but I see incorrect data. I can drive the same uart data to a board pin and look at with my logic analyzer (pulseview) and it looks fine. My Tang Nano 1k board uart works fine after I updated the CH552 firmware. Does the BL702 firmware need to be updated? Thank you.

charkster commented 2 years ago

Looks like it was a Linux driver issue on my setup. I switched to python Ftdi library and had no issues. The normal python serial library would not properly set the baudrate, but the Ftdi library did. I was able to see clean operation up to 3Mbps. Well done Sipeed.