Multiple Thread in GPIF example for USB to GPIF

E_521156 · ‎Feb 06, 2020

Hi,
Is there any example for multiple thread in GPIF for sending continuous data from USB to GPIF to help me on my project , just like "reversing" the configuration in AN75779?

data is lost every 16KB in my project. Based on AN75779 documents, I should do multi threding in GPIF. In AN75779, data goes from GPIF to USB, but I have problem from USB to GPIF.

Thanks

Rashi_Vatsa · ‎Feb 10, 2020

Hello,

In the firmware you shared in this thread Multiple Thread in GPIF II for DR_data , i found that the configuration for serial out is 0x00001F83, /* CY_U3P_PIB_GPIF_SERIAL_OUT_CONFIG */

which is socket zero ( as mentioned in GPIF_SEROUT_THREAD_NUMBER_MASK (bit 3:2) is configured for data sink (from USB to GPIF).

As you are using two sockets (thread) in you firmware, this field should be 0. So that the socket is chosen internally (as per the thread)

So the configuration should be 0x00001F81, /* CY_U3P_PIB_GPIF_SERIAL_OUT_CONFIG */

I have tested this at my end. Refer to the results

PS: I have changed the DMA buffer size and endpoint size to 1024 (for testing purpose)

Regards,

Rashi

Regards,
Rashi

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Multiple Thread in GPIF example for USB to GPIF

Multiple Thread in GPIF example for USB to GPIF

Re: Multiple Thread in GPIF example for USB to GPIF