M400 baud rate for RS-232

Information on getting your PC to talk to your MoTeC product via RS232, CAN, USB or Ethernet.

M400 baud rate for RS-232

Postby cmcrae on Fri Apr 19, 2013 3:44 am

I've been having trouble reading the correct data from a data logger I'm constructing. It gets data, including the headers of $82, $81, $80, but after that the data seems to get corrupted. I saw in the data sheet that it said "baud rate 19200 (actual 19231)". I tried this but it didn't seem to work; my question is, is the baud rate from the ECU in this case 19200 as stated by ECU Manager, or 19231 as stated by the CRC32 data set sheet?
cmcrae
 
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Re: M400 baud rate for RS-232

Postby MattW on Fri Apr 19, 2013 10:29 am

Hi cmcrae,

The requested baud rate of 19200 becomes 19231 actual because of processor clock speed.
That's an error of only 0.16%. You should get away with 0.5% before coming across issues.
MattW
 
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