Implement some details of USBTMC specification - helps to recover from read timeout

python-ivi / python-usbtmc

Provides a USBTMC driver for controlling instruments over USB

MIT License

160 stars 69 forks source link

Implement some details of USBTMC specification - helps to recover from read timeout #50

Closed ghost closed 11 months ago

ghost commented 5 years ago

Three changes to follow the USBTMC specification more closely:

Read Bulk-IN endpoint during abort_bulk_in sequence. This is needed to recover from a read timeout. See also issue #49
Clear Bulk-OUT endpoint after abort_bulk_out sequence. Not tested, but the spec says we must do this.
Ignore EOM flag when device sends partial data. Not tested, but the spec says we must do this.

jag213 commented 5 years ago

Thanks, this fixed my issue with Aglient 33410A. If there were any errors in the code I would have to power cycle my DMMs to get them to work properly. Not anymore!

ferdymercury commented 3 years ago

Thanks so much! It fixed it for me too @alexforencich could you merge this PR? Or maybe add @jorisvr as collaborator so he can do it?

Cheers!