AM3359: EtherCAT demo behavior

matusan

Part Number: AM3359
Other Parts Discussed in Thread: TMDSICE3359

Hello, TI Experts,

Our customer sent us a question about below Ethercat demo of TMDSICE3359.

http://software-dl.ti.com/processor-industrial-sw/esd/docs/indsw/EtherCAT_Slave/01_00_07/PRU_ICSS_EtherCAT.html#starting-ethercat-application

They found strange behavior like below;

(Please refer the attached pdf in detail.)

- Run below Ethercat demo on TMDSICE3359 by connecting ethernet cable with WindowsPC.

C:\ti\PRU-ICSS-EtherCAT_Slave_01.00.07.02\protocols\ethercat_slave\projects

\ethercat_slave_demo_AM335x_arm\AM335x_release\ethercat_slave_demo_AM335x_arm.bin

(Twincat is also running on the PC).

- They check the "Link lost A/B status" on the Twincat window.

(It shows 0x208)

- Then re-plugged Ether cable to generate connection error.

- They check again the "Link lost A/B status" on the Twincat window.

(It shows 0x20a)

- It seems to increment “two"

(Their expectation is only increment “one”).

Question:

Do you have same experience?

We would appreciate if you check the behavior with TMDSICE3359 and tell us how to solve this problem.

Best regards,

detail.pdf

over 6 years ago

0 Garrett Ding over 6 years ago

TI__Mastermind 43296 points

Hi,

I will set up my board and check it out, then get back to you...

Regards,

Garrett

0 matusan over 6 years ago in reply to Garrett Ding

Guru 10235 points

Hi,

Thank you very much for your kindness.

I really appreciate your help.

We are waiting for your feedback including your checking result.

Best regards,

0 Garrett Ding over 6 years ago in reply to matusan

TI__Mastermind 43296 points

Hi matusan,

Yes I could reproduce the issue as the customer observed. It seemed we logged both link up and down events in the counter register. I will open an internal ticket to track this and get it closed.

Thanks,

Garrett

0 matusan over 6 years ago in reply to Garrett Ding

Guru 10235 points

Hi,

Thank you very much for your kindness.

I really appreciate your help.

If you know the updated release plan, please tell us.

Best regards,

0 Garrett Ding over 6 years ago in reply to matusan

TI__Mastermind 43296 points

Hi matusan,

I hope the issue doesn't block the customer's project, will let you know when the JIRA is addressed.

Regards,

Garrett

0 matusan over 6 years ago in reply to Garrett Ding

Guru 10235 points

Hi,

Thank you very much for your kindness.

I really appreciate your help.

Our customer sent us the feedback.

They want to fix the code to only count with "link-down" by re-plugged Ether cable.

Question:

Could you tell us how to modify the code?

- Which file should be fixed?

- What part/line is needed to fix of the file?

We would appreciate if you tell us how to fix the code to only count with "link-down" by re-plugged Ether cable.

Best regards,

0 Garrett Ding over 6 years ago in reply to matusan

TI__Mastermind 43296 points

Hi matusan,

It appears the behavior of Link lost A/B status the customer observed is normal for EtherCAT slave devices. I am in EtherCAT plugfest and have discussed the topic with ETG. If the customer requests the code changes for the status, please ask them submit a ticket in ETG forum -http://ethercat.org/login.aspx?ReturnUrl=%2fMemberArea%2fen%2fforum.htm

Regards,

Garrett

0 matusan over 6 years ago in reply to Garrett Ding

Guru 10235 points

Hi,

Thank you very much for your kindness.

I really appreciate your help.

I will send the answer to the customer.

Best regards,

0 matusan over 6 years ago in reply to matusan

Guru 10235 points

Hi,

Thank you very much for your kindness.

I really appreciate your help.

Our customer sent us the feedback message like below.

- We understood “The behavior is normal as a result of the discussion with ETG”.

- So, we will close this issue.

Best regards,

Processors

Processors forum

AM3359: EtherCAT demo behavior