I want to script this and my scripting skills are rather limited so please bear with me.I have a scope attached to RX and TX lines of the serial port. If I do:cat /dev/ttyS0I get a steady stream of 'C' characters so the remote side is up and sending.If I do:cat {filename} > /dev/ttyS0I get a burst on TX line w/o any protocol. If I do the following:/usr/bin/sx -vv -k -X -b -c send {filename}TX line remains inactive. File is binary and expecting xmodem 1K protocol. What am I doing wrong?
How to send a file using xmodem protocol from the command line
modem