HP50g serial communication with 3rd party device

[snrowe]

Hi,

Think the commands you may be looking for are:
XMIT (Requires a string to be sent to serial device on line 1 of stack. Will return 1 or 0)
BUFLEN (Requires nothing on stack. Will return 1 or 0, if 1 will have the length of the buffer on line 2 of stack)
SRECV (Requires length of expected reply on line 1 of stack, will return 1 or 0, if 1 the response string will be on line 2 of stack)

To send a command and then listen for a response you'd try something like:

<< "<Prefix > . <Variable> <Operator> <Value> <CR> (and/or) <LF>"
XMIT DROP 1 WAIT BUFLEN DROP 1 WAIT SRECV >>

You may want to increase the wait time or eliminate it all together depending on how fast your serial device can process commands.