TMS570LC4357: lwIP Demo: Server not responding

Erkan

Part Number: TMS570LC4357

Hi,

I have been trying to get the lwIP demo up and running for some time.

I am working on Hercules TMS570LC43x Development Kit. (HalcoGEN version: 04.06.00, Code Composer Studio version: 7.3.0.00019)

I managed to get the "Webserver accessible @ http://172.18.63.37" message over SCI. Everything seems fine, but when I enter the URL in the browser, no communication is established.

I am assigning static IP address (DHCP not working).

My computer has the IP 172.18.63.151 with network mask "255.255.255.0" and gateway "172.18.63.1"

The following part is how I initialize lwIP:

	uint8 ip_addr[4] = { 172, 18, 63, 37 };
	uint8 netmask[4] = { 255, 255, 255, 0 };
	uint8 gateway[4] = { 172, 18, 63, 1 };

	ipAddr = lwIPInit(0, macAddress,
			*((uint32_t *)ip_addr),
			*((uint32_t *)netmask),
			*((uint32_t *)gateway),
			IPADDR_USE_STATIC);

HDK and my computer is connected to a router (not directly connected) and I tried switching their cables and both cables seem to work fine. I tried a UDP client application on HDK and I cannot receive any UDP packets on the server application running on my machine. (Tried sending messages over UDP with the same cables between two PCs running on Windows, working fine!)

What may be the problem?

Thanks,

Erkan

over 7 years ago

0 QJ Wang over 7 years ago

TI__Guru**** 192486 points

Hello Erkan,

Please confirm the IP address of "172, 18, 63, 37" is assigned to your HDK using the DHCP feature. Add the following code before your code mention in your thread:

unsigned int ipAddr01;
ipAddr01 = lwIPInit(0, macAddress, 0, 0, 0, IPADDR_USE_DHCP);

0 Erkan over 7 years ago in reply to QJ Wang

Prodigy 120 points

Do I have to add that code if I don't want to use DHCP?

I want to use Static IP.

Do I have to call lwIPInit twice?

Erkan

0 QJ Wang over 7 years ago in reply to Erkan

TI__Guru**** 192486 points

Hello Erkan,

You don't have to use DHCP. I was asking you to confirm the ip address for HDK using DHCP.

0 Erkan over 7 years ago in reply to QJ Wang

Prodigy 120 points

DHCP is not working on my network, so I have to use static IP.

Is that a problem? Do I need DHCP or does it work with static IP?

0 QJ Wang over 7 years ago in reply to Erkan

TI__Guru**** 192486 points

Hello Erkan,

There is no problem to use static ip. How did you get the ip address for the HDK?

0 Erkan over 7 years ago in reply to QJ Wang

Prodigy 120 points

Hi,

I didn't get your question. What do you mean by "How did you get the IP address"?

Example code snippet is given in my original question. I set the IP within the code.

Thanks,

Erkan

0 QJ Wang over 7 years ago in reply to Erkan

TI__Guru**** 192486 points

Hello Erkan,

Have you got your UDP working? I tested on my bench it works fine for tftp, http, etc.

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TMS570LC4357: lwIP Demo: Server not responding