[GreenKeys] Lorenz Lo15 - advice request!

[Jim Cooper]

On 21 Jun 2019 at 11:07, Mattis Lind wrote:

> 2. I made a little program in the
> STM32 that send continous RY
> characters and then a CR. After the
> CR the next character would be
> printed on the way back. Is this normal
> and you need to insert a NUL after a
> CR or is my machine to slow? 

back in the 50s when RTTY was used a lot, 
the standard protocol was to always send 
2 CRs followed by a LF at the end of each 
line just for that problem.