Read IP assigned by DHCP using serial port

Embedded Devices Plug N' Play
#1

We are using DigiConnect Wi-ME through a serial port (digi is linked to the Altera DE2-70 FPGA).

Is there any way to read IP that was assigned by DHCP to the digi module?

We need to read the IP and display it on our FPGA LCD display, i am quite stuck cause no manuals mention internal Digi memory structure, is this possible to read the IP out of some register on Digi Wi-ME ?

Best regards

#2

Which firmware are you using? statndard or custom?

#3

I am using standard firmware

#4

If you are programming the Digi, you can easily get the DHCP address using Treck calls. If you are using the preprogrammed setup, you are out of luck.


	{
		// compare with ttDeviceEntry in treck/include/trtype.h  
		// following is typedef void TM_fAR * in treck/include/trsocket.h 
		int ifCount;
		ttUserInterface *pIfList;
		ttUserInterface interfaceHandle;	// gets recast as above 
		int ndx = 0;
		char nameBuf[TM_MAX_DEVICE_NAME];
	
		// for the compiler 
		pIfList = tfGetInterfaceList(&ifCount);
	
		//TRACE( "
Interface list (%d):
", ifCount);
		while (ifCount--)
		{
			interfaceHandle = pIfList[ndx++];
			// init the name string 
			memset(nameBuf, ' ', TM_MAX_DEVICE_NAME);

			tfGetIfName((ttUserInterface) interfaceHandle, nameBuf, TM_MAX_DEVICE_NAME);
						  
			if( !strcmp(nameBuf, "eth0") )
			{
				tfGetIpAddress(interfaceHandle, &lAddr, 0);
				//tfGetIfGateway(interfaceHandle, &lGateway, 0);
				//tfGetNetMask(interfaceHandle, &lMask, 0);
				//tfGetPppDnsIpAddress(interfaceHandle, &lDNS1, TM_DNS_PRIMARY);
				//tfGetPppDnsIpAddress(interfaceHandle, &lDNS2, TM_DNS_SECONDARY);
				break;
			}
		}
	}