topic Re: Using Socket API in imxrt1176 in i.MX Processors

Using Socket API in imxrt1176

Devaharsha — Tue, 06 Jun 2023 10:08:10 GMT

I have changed my personal email ID to company email ID in the setting. Can you help me, where to change in code for using TCP socket API using ethernet.

Please refer to this thread: https://community.nxp.com/t5/i-MX-Processors/Using-TCP-socket-in-LwIP-on-iMXRT1176/m-p/1664154/emcs_t/S2h8ZW1haWx8bWVudGlvbl9zdWJzY3JpcHRpb258TElLMVZBQkU4N0lRVnwxNjY0MTU0fEFUX01FTlRJT05TfGhL#M207166

Re: Using Socket API in imxrt1176

kerryzhou — Mon, 12 Jun 2023 04:47:42 GMT

Hi @Devaharsha ,

Thanks a lot for your cooperation, and sorry for my later reply because of my PTO.

I already send you the lwip client and server socke code based on the freertos, please check your message attachment:

If you still have issues about it, please kindly let me know.

Wish it helps you!

Best Regards,

Kerry

Re: Using Socket API in imxrt1176

Devaharsha — Wed, 05 Jul 2023 10:28:21 GMT

Hi,

Sorry for late reply. I was busy with other tasks.

Thanks for the files. I have written the client socket code as you mentioned in the attached file. And I am running a server on my laptop written using python. Everything is working fine.

The issue I am facing is:

1) When I am trying to receive data over socket, its not receiving correctly. Like if I am sending "Hello", its receiving as "Hell" or "llo", etc. Though its receiving correctly also sometimes.

Correct me if I am wrong, I suspect a problem is in:

1) Send socket is done using server which is executing send function in an infinite for loop without delay.

2) Recv function is executing on imxrt1176 with 1ms task delay.

3) Is the issue related to timing?

and also if I want to set socket in non-blocking state, I can't see any non-blocking option under setsockopt() function. But in send and recv function, under flags parameters it can be given. Is it correct or I am missing something?

Re: Using Socket API in imxrt1176

kerryzhou — Wed, 05 Jul 2023 10:31:06 GMT

Hi @Devaharsha ,

This case is opened so long time, it is closed automatically by the system.

So, to the new issues, please help to create the new question post, thanks.

Best Regards,

Kerry