Hello, I'm having trouble decoding this signal. I have 4 wires, + - A B, Ic is LPC2368FBD100, it looks like modbus on rs485, with a 57600 baudrate. Do you have a better idea to identify protocol o decode it? Thanks!
Samples are taken with saleae's logic, the software hasn't "math" operations, so one capture uses 2 channels, one for A and one for B, referred to gnd.
The other two captures, to see A-B and B-A on single channel, have gnd referred to B and A.