Connecting to a STN1110

Question

I'm trying to connect to a STN1110 chip via screen. Unfortunately I only get strange characters as response.

My understanding is that this is due to the wrong baud rate. I tried several baud rates I could find for STN1100 (9600, 115200, 38400) but none of them work. Am I missing something? Thanks as always for your help.

Answer 1

It seems like I found the solution. Screen was not the problem and the baud rate 9600 was the right one. After checking the wiring (thanks to a tipp from a budy of mine) we noticed that the ground of the ttl to usb adapter was not properly connected to the STN1110. After I fixed the ground everything worked fine.