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Urgent : LPC2378 EMAC is not connected with the National PHY

Hi Friends,

Processor : LPC2378
Task : EMAC interface.

I am new to the Ethernet.
I have a Demo Board MCB2300.I am using the Example Code C:\Keil\ARM\Boards\Keil\MCB2300\RL\TCPnet\Http_demo.

The Example code is working well in the Demo board.After connecting the board with the network i am able to ping the IP Address (For an example 192.168.1.253, what i define).

In my application board i am not able to ping.
when I connect the board to network, i am able to read the ipconfig details in the command prompt.
If i ping the address of 192.168.1.253, i am getting the result of "Request Timed out".

When i connect the network cable to the board,the LED in the RJ45 connector is blinking.

what i have to check and How to solve this bug ?
Please help me.

with regards,
Murthy.R

Parents
  • Hi all,

    Board is working now.

    The Problem is, LPC2378 chip has the different versions.

    Rev "-", Rev "A" and Rev "B"

    The Ethernet pin selection in the demo code is for the Rev "-" chip.
    But i am using the Rev "B",for this version the pins are different. So i changed the pin selections, now the code is working well.


    So Please check the pin selection before use the example codes

    with regards,
    Murthy.R

Reply
  • Hi all,

    Board is working now.

    The Problem is, LPC2378 chip has the different versions.

    Rev "-", Rev "A" and Rev "B"

    The Ethernet pin selection in the demo code is for the Rev "-" chip.
    But i am using the Rev "B",for this version the pins are different. So i changed the pin selections, now the code is working well.


    So Please check the pin selection before use the example codes

    with regards,
    Murthy.R

Children
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