The general use case is to utilise SQDToolz. Nonetheless, here are some notes that may help with debugging.
The protocol is very simple. It can be probed via a serial terminal (e.g. PuTTY
or minicom
). Just type the following to set the state:
U
- set switch to J1 (it returnsP
as an acknowledgement)j
- set switch to J2 (it returnsR
as an acknowledgement)f
- set switch to J3 (it returnsS
as an acknowledgement)w
- set switch to strobe and coordinate the VNA triggers (it returnsT
as an acknowledgement)Z
- simply returns the state of the switch (1
,2
,3
,4
for switch modes J1, J2, J3 and strobe respectively)
The serial port settings are:
- 9600 baud
- No parity bit
- No flow control