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about uart spitting garbage
Posted: Fri Jul 26, 2024 3:27 pm
by rrryy39
Hi everyone I am new here. I recently got the board and everything but when trying to read serial line I got stuck. I purchased a really good serial to usb converter which support baud rate is 921600 (moxa uport 1150) but still got garbage. TX has 3.3v, any tips on debugging this? Thanks in advance.
Re: about uart spitting garbage
Posted: Fri Jul 26, 2024 6:45 pm
by manny
What board did you get?
The (moxa uport 1150) is a converter to RS232 depending on the board this is not correct. RS232 has signals with low of -3 to -12V and high signal of 3 to 12V. Most boards use uart that uses signals between 0 and 3.3 or 5V
Re: about uart spitting garbage
Posted: Sat Jul 27, 2024 12:31 am
by rrryy39
I ordered the foccci evcc charging board through JLCPCB, and flashed the Clara software into it.
Re: about uart spitting garbage
Posted: Sat Jul 27, 2024 6:59 am
by manny
In that case I think your cable will not work.
RS232 and uart are different
The foccci board uses 3v3 instead of 5V
So you need a different usb adaptor. If you google "usb to uart" there are a lot of cheap boards.
Maybe you have a arduino? That can be used as a adaptor as well.