Comport File Question: Serial port, Input code (1-255) Meaning

[rothers27]

Hello, I have a question about the comport file.

We want MediaLab to look for a response via the serial port. Our other computer in the past sent an ASCII 49 to the serial port, which MediaLab interpreted as a 1 and responded with a 1 response. Now, we want the input value to be an 18, and when MediaLab receives the code for 18, proceeds with a response of 1. The parameter in the questionnaire is set to (p1).

In a paragraph for Serial Port Input from section 5.10 of the
MediaLab manual file you state that "on each line you can
list a pair where the first value is the signal sent to the serial
port (i.e., 1-255)"...... This statement seems to explicitly state
that one could send any numeric integer value into the serial port,
and MediaLab ought to be able to read that value (including decimal
18, as we need). So, my question is -- can Medialab
really do this, and if so, how. And what does "input code (1-255) mean??

It is confusing that from our work trying to figure this out earlier, it is when MediaLab detects the ASCII *code* for a 1 coming over the serial port that it will react -- so, it's detecting the *number* 49.


Thank you! M