Cypress EX-USB FX3, Programmer'S Manual

Page: 93 / 192

FX3 Programmers Manual, Doc. # 001-64707 Rev. *C 93
FX3 Application Structure
break;
case CY_U3P_SUPER_SPEED:
size = 1024;
break;
default:
CyU3PDebugPrint (4, "Error! Invalid USB speed.\n");
CyFxAppErrorHandler (CY_U3P_ERROR_FAILURE);
break;
}
CyU3PMemSet ((uint8_t *)&epCfg, 0, sizeof (epCfg));
epCfg.enable = CyTrue;
epCfg.epType = CY_U3P_USB_EP_BULK;
epCfg.burstLen = 1;
epCfg.streams = 0;
epCfg.pcktSize = size;
/* Producer endpoint configuration */
apiRetStatus = CyU3PSetEpConfig(CY_FX_EP_PRODUCER, &epCfg);
if (apiRetStatus != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "CyU3PSetEpConfig failed, Error code = %d\n",
apiRetStatus);
CyFxAppErrorHandler (apiRetStatus);
}
/* Consumer endpoint configuration */
apiRetStatus = CyU3PSetEpConfig(CY_FX_EP_CONSUMER, &epCfg);
if (apiRetStatus != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "CyU3PSetEpConfig failed, Error code = %d\n",
apiRetStatus);
CyFxAppErrorHandler (apiRetStatus);
}
8.1.2.5 USB Setup Callback
Since the fast enumeration model is used, only vendor and class specific requests are received by
the application. Standard requests are handled by the firmware library. Since there are no vendor or
class specific requests to be handled, the callback just returns CyFalse.
CyBool_t
CyFxSlFifoApplnUSBSetupCB (
uint32_t setupdat0,
uint32_t setupdat1
)
{
/* Fast enumeration is used. Only class, vendor and unknown requests
* are received by this function. These are not handled in this
* application. Hence return CyFalse. */
return CyFalse;