Implement SCPI in pure Python
New asyncio version. Only for Python 3.5 and above
Since all the other wrappers either require VISA binary or are not generic (and do not implement the device I need)
Basic idea here is to make transport-independent command sender/parser and a device baseclass that implements the common SCPI commands
A device specific implementation can then add the device-specific commands.
Pro tip for thos wishing to work on the code http://guide.python-distribute.org/pip.html#installing-from-a-vcs
- Instatiate a transport (for GPIB you will need
GPIBDeviceTransportto be able to use the device helper class)
SCPIProtocolwith the transport (optional, see below)
SCPIDevicewith the protocol (or as a shorthand: with the transport directly)
- Use the asyncio eventloop to run the device methods (all of which are coroutines)
Or if you're just playing around in the REPL use
AIOWrapper to hide the eventloop handling
for traditional non-concurrent approach.
Check Carrier-Detect for RS232 transport
in the RS232 transport check getCD to make sure the device is present before doing anything. CTS can also be checked even if hw flow control is not in use.
Basically wait for it for X seconds and abort if not found
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