I am using LPC 4357 with free RTOS. I require USB and Ethernet communication. Iam using USB1 as my USB communication port. I configured two tasks for USB and ethernet using LPCopen library. But while running both tasks getting hanged. please help me
here is my USB initilization
void intialize_USB_CDC(void){
USBD_API_INIT_PARAM_T usb_param;
USB_CORE_DESCS_T desc;
ErrorCode_t ret = LPC_OK;
USB_CORE_CTRL_T *pCtrl;
Chip_SCU_PinMuxSet(0x2, 5, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC2)); /* P2_5 USB1_VBUS, MUST CONFIGURE THIS SIGNAL FOR USB1 NORMAL OPERATION */
/* enable clocks and pinmux */
USB_init_pin_clk();
/* Init USB API structure */
g_pUsbApi = (const USBD_API_T *) LPC_ROM_API->usbdApiBase;
/* initialize call back structures */
memset((void *) &usb_param, 0, sizeof(USBD_API_INIT_PARAM_T));
usb_param.usb_reg_base = LPC_USB_BASE;
usb_param.max_num_ep = 4;
usb_param.mem_base = USB_STACK_MEM_BASE;
usb_param.mem_size = USB_STACK_MEM_SIZE;
/* Set the USB descriptors */
desc.device_desc = (uint8_t *) USB_DeviceDescriptor;
desc.string_desc = (uint8_t *) USB_StringDescriptor;
#ifdef USE_USB0
desc.high_speed_desc = USB_HsConfigDescriptor;
desc.full_speed_desc = USB_FsConfigDescriptor;
desc.device_qualifier = (uint8_t *) USB_DeviceQualifier;
#else
/* Note, to pass USBCV test full-speed only devices should have both
* descriptor arrays point to same location and device_qualifier set
* to 0.
*/
desc.high_speed_desc = USB_FsConfigDescriptor;
desc.full_speed_desc = USB_FsConfigDescriptor;
desc.device_qualifier = 0;
#endif
/* USB Initialization */
ret = USBD_API->hw->Init(&g_hUsb, &desc, &usb_param);
if (ret == LPC_OK) {
/* WORKAROUND for artf45032 ROM driver BUG:
Due to a race condition there is the chance that a second NAK event will
occur before the default endpoint0 handler has completed its preparation
of the DMA engine for the first NAK event. This can cause certain fields
in the DMA descriptors to be in an invalid state when the USB controller
reads them, thereby causing a hang.
*/
pCtrl = (USB_CORE_CTRL_T *) g_hUsb; /* convert the handle to control structure */
g_Ep0BaseHdlr = pCtrl->ep_event_hdlr[0];/* retrieve the default EP0_OUT handler */
pCtrl->ep_event_hdlr[0] = EP0_patch;/* set our patch routine as EP0_OUT handler */
/* Init VCOM interface */
ret = vcom_init(g_hUsb, &desc, &usb_param);
if (ret == LPC_OK) {
/* enable USB interrupts */
NVIC_EnableIRQ(LPC_USB_IRQ);
/* now connect */
USBD_API->hw->Connect(g_hUsb, 1);
}
}
}
Ethernet configuration
static void setupEthernetHardware(void)
{
/* LED0 is used for the link status, on = PHY cable detected */
//New Board
DEBUGOUT("With out FPGA Baord\r\n");
Chip_SCU_PinMuxSet(0xC, 4, (SCU_PINIO_FAST | SCU_MODE_FUNC3));//TX_EN
Chip_SCU_PinMuxSet(0x2, 0, (SCU_MODE_PULLUP | SCU_MODE_FUNC7));//MDC
}
