Instrument control package
Package for interfacing the outside world of hardware via Serial, i2c or Parallel interfaces.
You might want to configure interface in a loopback mode for testing.
- If you have a Serial adapter, then simply connect pins 3 (Tx) and 2 (Rx) together (assuming your adapter is RS-232 DE9, otherwise check before doing anything). One can also insert an LED in series to view the actual bitstream.
- If you do not have a Serial adapter then create a virtual port using:
# socat PTY,link=/dev/ttyS15 PTY,link=/dev/ttyS16
which will open two interconnected interfaces, where one (e.g. /dev/ttyS15) can be opened in Octave and second (e.g. /dev/ttyS16) using something like GNU screen:
$ screen /dev/ttyS16 <baudrate>
do not forget to change interface permissions if you want to use them with Octave/screen without root privileges.
Opening and closing the interface
Configuring open interface