LPC MicrocontrollersのトピックRe: LPC1769 Ethernet problem

LPC1769 Ethernet problem

sudheerkumardor — Tue, 07 Mar 2017 09:37:40 GMT

We are working with LPC1769 ,Ethernet peripheral in RMII mode.We are using LAN8720ai for ethernet interface.We configured EMAC for 10Mbps speed and the data transmission speeds are approximately 10Mbps. But for 100Mbps data got corrupted.Please share your knowledge.

Re: LPC1769 Ethernet problem

jeremyzhou — Thu, 09 Mar 2017 03:21:59 GMT

Hi sudheer kumar doredla,

Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.

Sorry, something need you to clarify.

1. Does the demo works well when set up the 10 Mbps mode? However it will fail when choose the 100 Mbps mode ?

2. What's the demo do you use?
Have a great day,
Ping

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

Re: LPC1769 Ethernet problem

sudheerkumardor — Thu, 09 Mar 2017 10:39:20 GMT

hi jeremyzhou,

Thanks for your replay....

please refer the following attachment for my test setup to identify the problem of Ethernet 100Mbps.

Thank you....

Re: LPC1769 Ethernet problem

jeremyzhou — Fri, 10 Mar 2017 09:35:00 GMT

Hi sudheer kumar doredla,

Thanks for your reply.

According to the attachment demonstrates, I think the issue is caused by the inappropriate configuration to 100 Mbps mode.

I was wondering if you can share the demo, then I can run the demo on the board to replicated the issue.

I'm looking forward to your reply.
Have a great day,
Ping

Re: LPC1769 Ethernet problem

sudheerkumardor — Tue, 14 Mar 2017 10:20:31 GMT

hi jeremyzhou,

thank you for your replay......

please verify the attached file.

thank you,

Re: LPC1769 Ethernet problem

jeremyzhou — Wed, 15 Mar 2017 08:43:14 GMT

Hi sudheer kumar doredla,,

I need the complete demo, then I can open it directly via IDE.

Hope this is clear.
Have a great day,
Ping