| Forum List • Thread List • Reply • Refresh • New Topic • Search • Previous • Next  1  |  1. Accessing the COM port#13634 Posted by: DougA 2013-04-18 01:55:39 | I have a PicAXE micro attached to my COM2 port.
The PicAXE programing software is able to send and receive to the micro.
I'd like to use a REXX program to do the receive instead.
In the test program below, the Stream Open is returning "READY:"
The Status command is returning "READY"
However, the chars(port) command returns 0, so it's not finding any data
There's noting in here however, to set the RS-232 parms, like baud, parity, etc
Back in DOS days, I believe, there was a 'mode' command.
The PicAXE programming software is showing me 9600,n,8,1
How does one go about setting this in the REXX program ?
This is a real RS-232 port, not USB converted.
/* make a terminal emulator to capture data from the PicAXE */
port = 'COM2'
IF STREAM(port, 'C', 'OPEN READ') == 'READY:' THEN DO
CAll ReadTerminal
STREAM(port, 'C', 'CLOSE')
end
ELSE SAY STREAM(port, 'D')
Exit
ReadTerminal:
Say "Status:" Stream(port, 'S')
Do 300
If CHARS(PORT) > 0 then do
rec = charin(port,,30)
err = stream(port,'D')
Say length(rec)">"rec"<" err
end
else say 'no data'
end
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