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Why would USB_Class_CDC_Send_Data not cause a USB_APP_SEND_COMPLETE

Question asked by Peter Barada on Jan 26, 2017
Latest reply on Feb 8, 2017 by soledad

Using in MQX-4.2.0.2 on a twrk70f120m with a TWR_SER2 we're trying to send a bunch of data over USB CDC and we see that USB transmit/receive are working fine for a while (i.e. multiple minutes) and then things stop after a successful call to USB_CLass_CDC_Send_Data with no following USB_APP_SEND_COMPLETE notify event.

 

1) Have people seen the MQX EHCI device stack/driver exhibit this behavior?

2) What possible recovery methods could I try?

 

Thanks in advance!

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