checksum for ComPort
Posted: Tue Jul 23, 2013 6:52 pm
I need to include a Checksum byte in my command line to the ComPort. Any direction in generating the packet checksum would be appreciated.
Thanks, folks!
Thanks, folks!
Code: Select all
string_data = @ins[0]
# this is line for test only, comment this to use input
string_data = "this is the data string"
####
checksum = 0
string_data.each_byte {|x| checksum ^= x }
output 0, checksum # with test line active this output have, checksum => 96