Hello, for a job I must process data obtained from a kestrel board (https://images.app.goo.gl/hBE8611vrpJFirHF9
) on my raspberry pi 3. The communication I am trying to carry out with a db9 rs232 from that kestrel board to the raspberry. The connection I make is GND-> GND, TX-> RX and RX-> TX. Now, although I receive information from the Kestrel board, this data is wrong. At first I thought it was related to BAUDRATE but everything is at 11520 (which should be correct according to the instructions given to me). But I had a question, what is the name of the port that I must open to use the necessary pins? serial0, ttys0 or ttyAMA0. With ttys0 I do not receive anything, instead with serial0 and ttyAMA0 I receive the erroneous data, what I want to reach, what is the difference between serial0 and ttyAMA0? What is the correct name to use?