AM263X-MCAL-SDK: Why Link-up LED and Activity LED are not Glowing on the LP-263 board while using UDP client Example.

SAI KIRAN SATRAM

Part Number: AM263X-MCAL-SDK
Other Parts Discussed in Thread: AM2634, LP-AM263, SYSCONFIG

Hi,

I am using the LP-263 board and need to implement Ethernet data transfer from the AM2634 device. For this, I chose the RTOS-based example provided in the TI MCU+ SDK, specifically the UDP client example located at:

C:\ti\mcu_plus_sdk_am263x_11_01_00_19\source\networking\enet\core\examples\lwip\enet_cpsw_udpclient

Currently, I am able to configure the server IP address through the serial monitor, and I can successfully receive the message "Hello over UDP" on the PC using Wireshark.

However, I have the following two questions:

Why are the Link-Up LED and Activity LED not working during UDP transfers?
Does this example code not handle Link-Up LED control?
→ When I run a normal LED blink example and plug in the LAN cable, I can see the Link-Up and Activity LEDs turning ON.
Why are both ports (J7 & J8) behaving as a single interface?
For example, whether I connect the LAN cable to J7 or J8, the same data is being transmitted.
I would like to send data from a specific port only, with separate IP addresses and network configurations for each port.

I have gone through the MCU+ SDK documentation, and I understand that CPSW might be operating in Dual MAC mode. Is this the reason for the observed behavior? Is my understanding correct?

3 months ago

0 SAI KIRAN SATRAM 3 months ago

Prodigy 95 points

enet_cpsw_rawhttpserver_am263x-lp_r5fss0-0_nortos_ti-arm-clang.rar

Hi,

Our requirement is to send UDP data from two different ports of the AM2634, where each port should have a different IP address. There is no need to use an RTOS.

I have modified and tested the enet_cpsw_rawhttpserver_am263x-lp_r5fss0-0_nortos_ti-arm-clang example for UDP transmission. While UDP sending is working, the issue is that both ports on the LP-AM263 board behave as one interface. I believe CPSW is operating in switch mode.

I have attached the project file I tried. Could you please guide us on how to configure it so that each port has an individual IP address and operates independently?

I also have a few doubts:

In which mode should CPSW be operated to make the ports function independently?
What is the maximum number of Ethernet communication ports supported by the AM2634? I assume it is three (two from CPSW and one from ICSS). Am I correct?

Thanks,
Sai Kiran

0 Shaunak Deshpande 3 months ago

TI__Mastermind 23502 points

Hi Sai Kiran,

Please allow me some time to get back, by end of the day tomorrow.

Regards,
Shaunak

0 SAI KIRAN SATRAM 3 months ago in reply to Shaunak Deshpande

Prodigy 95 points

Hi Shaunak,

Glad to receive your acknowledgment. I will be waiting for your response.
Thanks,
Sai Kiran

0 Shaunak Deshpande 3 months ago in reply to SAI KIRAN SATRAM

TI__Mastermind 23502 points

Hi Sai Kiran,

Please find attached the project which has dual mac mode enabled. Both ports get unique IP address and can ping them. Please refer the to example.sysconfig and the app_main.c modified files.

enet_cpsw_rawhttpserver_dualmac.zip

Regards,
Shaunak

0 Shaunak Deshpande 3 months ago in reply to SAI KIRAN SATRAM

TI__Mastermind 23502 points

SAI KIRAN SATRAM said:
In which mode should CPSW be operated to make the ports function independently?

Yes, CPSW supports three modes of operation, Switch mode, MAC mode and Dual MAC Mode.

Regards,
Shaunak

0 SAI KIRAN SATRAM 3 months ago in reply to Shaunak Deshpande

Prodigy 95 points

Hi,

I will try this example and get back to you with the results.

Meanwhile, could you please clarify the remaining doubts from our previous discussion that have not yet been addressed?

We have not discussed why the Ethernet port LEDs are not turning ON, even though the link is active.
Does the example project not configure the PHY chip for LED control logic?

What is the maximum number of Ethernet communication interfaces supported by the AM2634?

I understand it to be three (two from CPSW and one from ICSS). Could you please confirm if this is correct?

Thanks,
Sai Kiran

0 Shaunak Deshpande 3 months ago in reply to SAI KIRAN SATRAM

TI__Mastermind 23502 points

Hi Sai,

I'll check and I'll get back with a response before EOD Friday

Regards,
Shaunak

0 SAI KIRAN SATRAM 3 months ago in reply to Shaunak Deshpande

Prodigy 95 points

Hi,

Thanks for your quick acknowledgement.

Sure , I will be waiting for your reply.

Thanks,

Sai Kiran

0 SAI KIRAN SATRAM 3 months ago in reply to Shaunak Deshpande

Prodigy 95 points

Hi Shaunak,

Will get response on this above query?

Thanks,

Sai Kiran

0 Shaunak Deshpande 3 months ago in reply to SAI KIRAN SATRAM

TI__Mastermind 23502 points

SAI KIRAN SATRAM said:
Does the example project not configure the PHY chip for LED control logic?

I suspect there is a mis-configuration in the PHY LED settings or the way application is initializing the PHY. Due to some high priority activities I haven't been able to look into this.

SAI KIRAN SATRAM said:

What is the maximum number of Ethernet communication interfaces supported by the AM2634?

Technically yes, we can have a three port interface, 2 from CPSW 1 from ICSS, can you please share what package of AM2634 are you using?

Regards,
Shaunak

0 SAI KIRAN SATRAM 3 months ago in reply to Shaunak Deshpande

Prodigy 95 points

Shaunak Deshpande said:
I suspect there is a mis-configuration in the PHY LED settings or the way application is initializing the PHY. Due to some high priority activities I haven't been able to look into this.

Can we resolve this issue? Have you tried the same examples on the LP-263? Have you experienced the same problem with the Ethernet port LEDs not switching?

Shaunak Deshpande said:
Technically yes, we can have a three port interface, 2 from CPSW 1 from ICSS, can you please share what package of AM2634 are you using?

we are using AM2634CODFHMZCZRQ1 IC, actually in our custom design.

Regards,

S Sai Kiran

0 Shaunak Deshpande 3 months ago in reply to SAI KIRAN SATRAM

TI__Mastermind 23502 points

Hi,

SAI KIRAN SATRAM said:
Can we resolve this issue? Have you tried the same examples on the LP-263? Have you experienced the same problem with the Ethernet port LEDs not switching?

Yes I was able to re-produce this, i will file a bug for the SDK team to fix. This is not affecting any functionality or data transfer, but just that some LED mis-configuration is causing issue.

SAI KIRAN SATRAM said:
we are using AM2634CODFHMZCZRQ1 IC, actually in our custom design.

It should be possible, May i know your exact use-case? Can you share your block diagram/more details about your system over email?

Regards,
Shaunak

0 SAI KIRAN SATRAM 3 months ago in reply to Shaunak Deshpande

Prodigy 95 points

Hi,

Shaunak Deshpande said:
Yes I was able to re-produce this, i will file a bug for the SDK team to fix. This is not affecting any functionality or data transfer, but just that some LED mis-configuration is causing issue.

Thank you. Please share the updated lines of code once you receive a solution from your SDK team.

Shaunak Deshpande said:
It should be possible, May i know your exact use-case? Can you share your block diagram/more details about your system over email?

Could you please share your email ID so that I can send the complete architecture of our system requirements directly?

Thanks & Regards,
S. Sai Kiran

0 Shaunak Deshpande 3 months ago in reply to SAI KIRAN SATRAM

TI__Mastermind 23502 points

SAI KIRAN SATRAM said:
Thank you. Please share the updated lines of code once you receive a solution from your SDK team.

This will be fixed as a part of next SDK release, around mid april

SAI KIRAN SATRAM said:
Could you please share your email ID so that I can send the complete architecture of our system requirements directly?

Please reach out via your FAE (Field Representative).

Regards,
Shaunak

0 SAI KIRAN SATRAM 3 months ago in reply to Shaunak Deshpande

Prodigy 95 points

Hi,

Shaunak Deshpande said:
This will be fixed as a part of next SDK release, around mid april

Okay, Understood.

Shaunak Deshpande said:
Please reach out via your FAE (Field Representative).

Sure.

Regards,

Sai Kiran

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AM263X-MCAL-SDK: Why Link-up LED and Activity LED are not Glowing on the LP-263 board while using UDP client Example.