Serial port data not working

fbergama / pigfx

PiGFX is a bare metal kernel for the Raspberry Pi that implements a basic ANSI terminal emulator with the additional support of some primitive graphics functions.

MIT License

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Serial port data not working #4

Closed JmanNZ closed 6 years ago

JmanNZ commented 7 years ago

Hi I am having an issue with a PI zero 1.3. If I connect the TX and RX the display echoes the keystrokes. If I use any external device (ie FTDI or other serial device) the serial data is bad. I connected a logic analyser to the Pi TX and to a FTDI and compared the outputs. Please see attached screen shots. I am using your prebuild version. Both system were outputting an M

ftdi

Regards John

andresdelcampo commented 6 years ago

I am not sure if it is the same problem, but my Pi Zero v1.3 was not outputting anything at all. It turns out the solution described by Brian Welsby in https://groups.google.com/forum/#!searchin/rc2014-z80/pi$20zero$20config%7Csort:date/rc2014-z80/0I-RAq3DnvU/9g2eLf1-AQAJ made it work! Worth a try...

Regards, Andrés

fbergama commented 6 years ago

Sorry guys but I had limited time to work on this project lately. Thank for your contribution! The readme file was updated as well