I'm looking desperately for a ttl pinout and terminal settings for lenovo arm ix4-300d. Does anyone have clue on how to get this working in a terminal? I've used 115200 8N1 but I get only a bit of gibberish.
Quote https://github.com/benoitm974/ix4-300d/wiki
UART on connector CN9 (four pins, outer side of board) provides Vcc at pin 1 (marked). Connect Pin 2 to the RX pin of your serial adapter, Pin 3 is GND and Pin 4 is TX. Connection parameters are 115200/8N1. Vcc can be controlled by the adjacent JP1 (pin 1 marked); bridging 1/2 provides 3V3, bridging 2/3 provides 5V - but beware that this does NOT change the I/O voltage.