It seems that hyperterm is the troublemaker.
with putty my tests are showing the right characters - strange.

Thank you ...

i reduced the lenght of the cable to 20cm, no change in behavior. 1234567890 displays ok ----- why ? 1111111111 displays 11"1"1"1"1 .... 3333333333 displays 33'3'3'3'3.... aaaaaaaaaa displays aayayaya.... ababababab displays correct --- why ? when repeating characters, the first ...

Another, but different question: How behaves the display when the receive buffer is full? The Manual says: FlowControl=none. How can this work correct? Is the integrated processor so fast, that it is always ready on the rs232 for receiving characters? And with 115200 Baud ? I am puzzled. Thx, Mario

I have a brand new LK204-25 connected to a PC and i send characters with HYPERTERM as described in the manual. When i send a character the display shows sometimes the correct character, sometimes a strange one. e.g. "mario eduardo" will be display correct "mario eduardooooo" will...