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CYU3P_USBEP_SS_RETRY_EVT | Cypress Semiconductor


Summary: 1 Reply, Latest post by Keerthy on 25 Nov 2013 12:43 PM PST
Verified Answers: 1
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gd_net's picture
20 posts


i set up my slavefifo app (BULK_IN )as CY_U3P_DMA_TYPE_AUTO_SIGNAL (for debugging).

With a bad cable i get a CYU3P_USBEP_SS_RETRY_EVT event.

After that data transfer stops.

Is there a known way to react on an CYU3P_USBEP_SS_RETRY_EVT event ?

Best regards




Keerthy's picture
Cypress Employee
31 posts

Hi ,


You might get CYU3P_USBEP_SS_RETRY_EVT when the data packet is corrupted.

Data Packet Payload Error (DPP) may be due to one or more of the following:
• CRC incorrect
• DPP aborted
• DPP missing
• Data length in the DPH(Data Packet Header) does not match the actual data payload length.




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