Programming Guide
CHUMP Reference Guide
16
Flow Control Commands
Flow control commands are data link and transport layer 
commands that acknowledge data flow or request data 
retransmission. The Flow Control commands are shown in the 
following table with the software version where the command 
was first implemented.
Cmd
Description Rev
A Acknowledgement (Ack) 1.20
N Negative Ack 1.20
S Request resend of last serial msg 1.30










