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Setting "Ignore Session Underrun"

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NorthGuy:
The AN_370 configuration documentation lists two different options for "Ignore Session Underrun":

- On Multiple of MaxPacketSize bytes
- On Multiple of FIFO bus-width bytes

I want to set this using FT_SetChipConfiguration(), but the FT_60XCONFIGURATION in FTD3XX.h doesn't contain any fields for this.

FT_60XCONFIGURATION is not documented, so one must guess the functionality by field names. The closest I could find is the CONFIGURATION_OPTIONAL_FEATURE_DISABLECANCELSESSIONUNDERRUN flag in the OptionalFeatureSupport member, which I guess I need to set. But nothing to distinguish between "On Multiple of FIFO bus-width bytes" and "On Multiple of MaxPacketSize bytes".

So, how do I select between "On Multiple of FIFO bus-width bytes" and "On Multiple of MaxPacketSize bytes"?

FTDI Community:
Hello,

Please contact your local support team who can look into this further:

https://ftdichip.com/technical-support/

Best Regards,
FTDI Community

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