• State Not Answered
  • Locked Locked
  • Replies 10 replies
  • Subscribers 21 subscribers
  • Views 1952 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

LPC2378 :Integeration of USB CDC with Ethernet Http Demo code

Murthy r

Hi Friends,

I am using the LPC2378 processor.

I have the USB CDC example code and Http Demo example code.

Both codes are working well in alone.
i want to integrate the USBCDC code and the Http code.

so i integrate the both code and connect the USB cable with the PC.

The USBCDC code is working well.

The problem is when i connect the Ethernet LAN cable i am not able to access the web page means i am not able to ping the address.I am getting the message "The connection has timed out".

Is this both USBCDC and http code wont work together?
should i disable any interrupt routine in the USB or http code?

please help me to solve this problem?

with regrads,
Murthy.R

Parents Reply Children
  • 0 in reply to edPer Westermark

    I use LPC2378 in MCB2300 and I test usbcdc demo with VirtualCOM function and it works well. But when I change the bulk endpoint from EP2 to EP5, this demo works failed. In LPC2378 EP2 and EP5 are for bulk data transfer.

    There are three parts I modify for bulk EP5:
    (1) In usbdesc.c :
    /* Endpoint, EP5 Bulk Out */ USB_ENDPOINT_DESC_SIZE, /* bLength */ USB_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType */ USB_ENDPOINT_OUT(5), /* bEndpointAddress */ USB_ENDPOINT_TYPE_BULK, /* bmAttributes */ WBVAL(USB_CDC_BUFSIZE), /* wMaxPacketSize */ 0x00, /* bInterval: ignore for Bulk transfer */
    /* Endpoint, EP5 Bulk In */ USB_ENDPOINT_DESC_SIZE, /* bLength */ USB_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType */ USB_ENDPOINT_IN(5), /* bEndpointAddress */ USB_ENDPOINT_TYPE_BULK, /* bmAttributes */ WBVAL(USB_CDC_BUFSIZE), /* wMaxPacketSize */ 0x00, /* bInterval: ignore for Bulk transfer */

    (2) In cdcuser.h :
    #define CDC_DEP_IN 0x85
    #define CDC_DEP_OUT 0x05

    (3) In cdcuser.c :
    void USB_EndPoint5 (DWORD event) { switch (event) { case USB_EVT_OUT: CDC_BulkOut (); /* data received from Host */ break; case USB_EVT_IN: CDC_BulkIn (); /* data expected from Host */ break; }
    }

    Does anybody know why. Thank you

  • 0 in reply to edward fang

    Stay in your own thread, and don't attack every thread you can find that has with USB to do...
    http://www.keil.com/forum/docs/thread13496.asp