cancel
Showing results for 
Search instead for 
Did you mean: 

USB Superspeed Peripherals

Anonymous
Not applicable

Below code works well at High speed, but return error 69 at super speed:

   

   dmaCfg1.size = 64;
   dmaCfg1.count = 2;
   dmaCfg1.prodSckId = CY_U3P_CPU_SOCKET_PROD;
   dmaCfg1.consSckId = CY_U3P_UIB_SOCKET_CONS_5;
   dmaCfg1.dmaMode = CY_U3P_DMA_MODE_BYTE;
   dmaCfg1.notification = CY_U3P_DMA_CB_CONS_EVENT;   
   dmaCfg1.cb = CyFxHIDDmaCallback;
   dmaCfg1.prodHeader = 0;
   dmaCfg1.prodFooter = 0;
   dmaCfg1.consHeader = 0;
   dmaCfg1.prodAvailCount = 0;   

   

   CyU3PDmaChannelCreate (&glChHandleHID, CY_U3P_DMA_TYPE_MANUAL_OUT, &dmaCfg1);    
   CyU3PDmaChannelSetXfer (&glChHandleHID, 0);
    ......

   

   status = CyU3PDmaChannelGetBuffer (&glChHandleHID, &buf_p, 2000);

   


    Why this happen? How can I make it work well at supper speed?

0 Likes
1 Reply