davids5 opened a new pull request #1273:
URL: https://github.com/apache/incubator-nuttx/pull/1273
## Summary
After 20 mn to an hr, the device would not respond to ping.
Initial issue was filed in [PX4
here](https://github.com/PX4/Firmware/issues/15036)
When any error was detected the buffers descriptors were
blindly initialized. This caused the TX of the MAC to
be in a bad state. The correct thing to do, we disable
the MAC, init the bufffers and re-eanable the MAC.
The interrupts were being throttled at the NVIC. This been cleaned up.
## Impact
The Interfaces will now work if there are any errors in the data, (plug and
un plug the cable)
## Testing
Test we done on nxp_fmuk66.
[See](https://github.com/PX4/Firmware/issues/15036#issuecomment-645206980)
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