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Hi, I'm using a MCB2300 with LPC2368 and the DNS_demo program. But I can't get the DHCP client and DNS Address from TCPNET working. How could i experiment? Thanks!
This is Debug information: DNS Resolver Demo Example
Resolving host: http://www.google.com ETH ERR: Local IP address: 0.0.0.0 ETH ERR: Local IP address: 0.0.0.0 ETH ERR: Local IP address: 0.0.0.0 ETH ERR: Local IP address: 0.0.0.0 ETH ERR: Local IP address: 0.0.0.0 ETH ERR: Local IP address: 0.0.0.0 ETH ERR: Local IP address: 0.0.0.0 ETH ERR: Local IP address: 0.0.0.0 ETH ERR: Local IP address: 0.0.0.0 ETH ERR: Local IP address: 0.0.0.0 ETH ERR: Local IP address: 0.0.0.0 DNS Resolver Timeout expired, Host Address not resolved. DHCP ERR:Timeout for retransm. too big, Next state INIT
Most likely a DHCP server is not working or a LAN connection is broken.
Please check a HTTP_Demo example first and try to connect to a mcb2300 host from a web browser.
Franc
From the log it is obvious that the ethernet is not working, because nothing is received.
Did you check the ethernet cable? For connection with a LAN switch you need a straight-through cable. Some of the LAN switches also have an Auto MDI/MDI-X crossover detection and are able to work with both crossover and straight-through cables.
If there is no problem with the LAN cabling, then there must be a problem with your MCB2300, which needs a repairing.
I have try the EasyWEB Demo program .Connect MCB2300 to a PC.It's success.I can visit the web page through PC's IE.So my MCB2300 demo board is good.But why the DNS demo is error?
Maybe you have an outdated RL-ARM which does not support the new LPC2368 silicon revision. Current RL-ARM version is v3.22a
Where could i download RL-ARM version v3.22a? And my Keil uVision is V3.51,it need update?
http://www.keil.com/update/rl-arm.asp http://www.keil.com/update/rvmdk.asp