Implement some details of USBTMC specification - helps to recover from read timeout #50
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added 3 commits
January 9, 2019 10:53
The USBTMC specification requires that pending Bulk-IN data are read during the abort_bulk_in sequence. Without this change, several tested USBTMC devices become fully unresponsive after a read timeout. With this change, the device responds correctly to subsequent commands after a timeout.
The USBTMC specification requires that the Bulk-OUT endpoint is stalled by the device during abort_bulk_out, then explicitly cleared by the host.
The USBTMC specificiation requires that the host ignore the EOM flag unless the device sends a complete data transfer.
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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! |
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Thanks so much! It fixed it for me too Cheers! |
ghost
closed this by deleting the head repository
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Three changes to follow the USBTMC specification more closely: