tms570lc4357-ethernet

pavithra pavithra

Other Parts Discussed in Thread: TMS570LC4357

hi ti,

i wanna establish ethernet communication between pc and hdk and i ve to measure the latency. i m working with tms570lc4357 and ccsv6.

i found the demo code from the link http://processors.wiki.ti.com/index.php/HALCoGen_Ethernet_Driver_and_lwIP_Integration_Demonstration.

how to use lwip stack for transmitting and receiving frames.

i m new to this so i need some assistance to start with.

thanks in advance

over 10 years ago

0 Chuck Davenport over 10 years ago

TI__Guru 59540 points

Hello Pavithra,

Thank you for your post. I have forwarded your question to one of our ethernet experts. They should respond to you shortly.

0 pavithra pavithra over 10 years ago in reply to Chuck Davenport

Intellectual 870 points

hi chuck,

thanks for ur reply. i ll wait for their response.

0 pavithra pavithra over 10 years ago in reply to pavithra pavithra

Intellectual 870 points

in the demo code lwip_main.c is called.
in the demo code where the auto negotiation process is performed? if someone knows please let me know...

0 pavithra pavithra over 10 years ago in reply to pavithra pavithra

Intellectual 870 points

anyone pls do reply

0 Chaitanya K over 10 years ago in reply to pavithra pavithra

TI__Intellectual 800 points

Pavithra,

Apologies for the late reply.

Autonegotiation is performed in the hdkif_link_setup() API, found in the /Build-TMS570lc43x/lwip-1.4.1/ports/hdk/netif/hdkif.c file. lwipInit API is called from the lwip_main.c file. In this API, the following statement is used for setting up the network interface:

netif_add(&hdkNetIF[instNum], &ip_addr, &net_mask, &gw_addr, &instNum, hdkif_init, ip_input)

In this process, the hdkif_init API is called, present in the hdkif.c file mentioned above. This API is responsible for actually initialising the Ethernet hardware including autonegotiation. Once this is done, DHCP init is performed using lwIP.

This demo is limited in its functionality, but if you want to do more, there's an lwIP wiki here, which is quite helpful.

Hope this helps.

Thanks and Regards,

Chaitanya

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tms570lc4357-ethernet