11-06-2019, 03:40 AM
(11-05-2019, 05:40 PM)hmuller Wrote:(11-05-2019, 03:01 PM)danielt Wrote: So... after a bit of experimenting I gave up on my official pine64 UART cable and soldered together something of my own instead (which sounds grander than it is... in reality it is just a stereo jack soldered to jumper cables). It looks like my official cable doesn't work with the PBP but the UART is working just fine using my breakout cable and an off-the-shelf (3.3v) TTL UART I had lying around.
I had issues with my serial cable in the beginning too. It wasn't being recognized by the USB subsystem. I later determined that it was the USB connector on the cable, it either wasn't seating properly, or the contacts were not clean. It had since been operating normally.
I've have no problems with USB enumeration and the adapter works fine with u-boot but shortly after the kernel starts the display and serial port stop working if the adapter is left plugged in. This does not happen with my handmade adapter.