Code which perform "Callback function invoked at end of transaction" by Consumer (Egress) Socket

[jkhoo]

slfifosync example code is running in Manual mode.

Which part of the codes in cyfxslfifosync.c (slfifosync example) represent the "Callback function invoked at end of transaction" by Consumer (Egress) Socket ? illustrated in FX3_PROGRAMMERS_MANUAL page 77.

[Biren_R]

Hello,

To invoke the callback on the consumer socket we need to register this as an event as I show below.

dmaCfg.notification = CY_U3P_DMA_CB_PROD_EVENT | CY_U3P_DMA_CB_CONS_EVENT;

and then we can catch this event is a respective callback CyFxSlFifoUtoPDmaCallback or CyFxSlFifoPtoUDmaCallback.

Best Regards,
Biren

[jkhoo]

But it is clearly stated in the notes at line 147 and 174 that :

CyFxSlFifoUtoPDmaCallback() : DMA callback function to handle the produce events for U to P transfers.

CyFxSlFifoPtoUDmaCallback() :  DMA callback function to handle the produce events for P to U transfers.

Are you saying that i just need to add in another block of

"if (type == CY_U3P_DMA_CB_CONS_EVENT) {...}

to handle "Callback function invoked at end of transaction" by Consumer (Egress) Socket ?

[Biren_R · Accepted solution]

Hello,

you need to update your dmaCfg.notification as per 1st replay and then use this if condition, in the same callback function.

Best Regards,
Biren