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Help.. MACGetHeader function does not return true

 
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Mr Noobie
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Help.. MACGetHeader function does not return true
PostPosted: Tue Feb 05, 2008 10:15 am     Reply with quote
well.. i am doing the exercises from "Development Kit for the PIC MCU Exercise book". am actually trying out the code from Chapter 7 on ethernet layer.

Below is the code for that section


Code:
void main(void) {
   MAC_ADDR mac;
   int8 type;
   printf(“\r\n\nCCS TCP/IP TUTORIAL\r\n”);
   MACInit();
   while(TRUE) {
      if (MACGetHeader(&mac, &type)) {
         if (type!=MAC_UNKNOWN) {
            MACDisplayHeader(&mac, type);
         }
      }
   }
}


After running the MACInit() function, the code return FALSE for MACGetHeader function. And because of that, i did not get the same UART reply as the one stated on the book..

The book say i should get reply as follows
Code:
CCS TCP/IP TUTORIAL
MAC: 00:0B:6A:B4:31:8C PROT:0x0800 [IP]
MAC: 00:D0:59:7F:23:A8 PROT:0x0800 [IP]
MAC: 00:09:5B:E1:30:E2 PROT:0x0800 [IP]
MAC: 00:C0:B6:02:92:BD PROT:0x0800 [IP]
MAC: 00:03:6D:1D:53:9A PROT:0x0806 [ARP]
MAC: 00:C0:B6:02:E2:CA PROT:0x0800 [IP]


but I only get the "CCS TCP/IP TUTORIAL" reply

If MACGetHeader return false, what does it mean..? How can it return FALSE and what must i do to troubleshoot..?

Please advise.. thanks..
Guest
PostPosted: Thu Feb 07, 2008 10:04 pm     Reply with quote
*bump*

Any inputs..?
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