Forum >Replies by oleg.v.lytvynenko
Replies （2）
- You Reply: Hi,
Finally i figured out that DIP (A,B,SERIAL) was broken. I have replace it and now I'm able to communicate with board using TTL pins. However for some reason only 2400 and 115200 baud rates are supported. Also baud rates to A/B switch position mapping is not correct comparing to documentation.
In my case
A0, B1 - 115200
A0, B0 - 2400
A1, B0 - N/A
A1, B1 - N/A
Also I have noticed that board might not work if blue LED is always ON. In normal mode it should blink several times and then it should turn off. - You Reply: Hi,
I have same issue. USB connection works fine but when connecting using SERIAL pins the board does not respond.
Tried different baudrates swithces. Seems like firmware does not support TTL mode.
Any fix?