Dear Sir/Madam,
I'm now working on MPC5606E for Ethernet communication between two MPC5606EEVBs. One board is sending and the other should receive. I have written the code but it didn't work. The other board didn't receive anything. And I doubt if the board really sent out something.
I wonder if the FEC initialization is wrong but I'm not clear. Another question is should I initialize the PHY in the code or I just use it without any configuration because I think MPC5606E integrates BCM89810 so maybe configuration is finished in hardware?
Could you please help me solving the communication problem of Ethernet between two MPC5606EEVBs?
Many thanks in advance!
Best regards,
Helen
Here is my code of FEC initialization. In addition, the whole project including all codes is in the attachment.
int initFec()
{
int i, result = 1;
#if !USE_LOOPBACK
initFecIo(); // Initialise pads for the FEC
#endif
FEC.ECR.R = 0x1; // Start reset
while (FEC.ECR.B.RESET) { } ; // Wait for reset to complete
FEC.EIMR.R = 0; // Disable interrupts
FEC.EIR.R = 0xFFFFFFFF; // Clear any interrupts
for (i = 0; i < 2; i++)
{
// Init tx and rx descriptors
txDesc[i].status = 0x2C00; // Last and transmit CRC
txDesc[i].length = 0;
txDesc[i].bufferPointer = txBuf;
markRxDescEmpty(&rxDesc[i]);
rxDesc[i].bufferPointer = rxBuf[i];
}
// Reset multicast fields
FEC.GAUR.R = 0;
FEC.GALR.R = 0;
FEC.IAUR.R = 0;
FEC.IALR.R = 0;
// Set rx buf size
FEC.EMRBR.R = 1536;
// Point FEC to our (single) tx and rx descriptors
FEC.ETDSR.R = (unsigned long) &txDesc;
FEC.ERDSR.R = (unsigned long) &rxDesc;
// Enable full duplex
FEC.TCR.R = 0x00000004;
#if USE_LOOPBACK
// In loopback, unset DRT and set LOOP in RCR
FEC.RCR.R = 0x05EE0001;
#endif
// Enable interrupt
FEC.EIMR.R = 0x02000000;
// Enable module
FEC.ECR.R = 0x2;
// Configure a MAC address
FEC.PALR.R = (unsigned long)((mac[0] <<24)|(mac[1] <<16)|(mac[2] <<8)|(mac[3] <<0));
FEC.PAUR.R = (unsigned long)(mac[4] <<24)|(mac[5] <<16);
// Flag descriptors available to allow reception
FEC.RDAR.R = 0x0100000;
return result;
}
Original Attachment has been moved to: test.rar
