AWR1843BOOST: Rev. C EVM CAN-FD can't achieve 5Mbps sometimes, Rev. B EVM is working fine

James Austrial

Intellectual 2910 points

Part Number: AWR1843BOOST
Other Parts Discussed in Thread: MMWAVE-SDK

HW: AWR1843BOOST Rev. C and Rev. B
SW: SBL in mmWave SDK 3.2

We use the binary (SBL in mmWave SDK 3.2) to do firmware downloading test via CAN-FD and found a strange symptom:

The CAN-FD 5Mbps Tx fail sometimes (The reproduce rate is around 1/3 and it means firmware downloading fail one time when you try three times) on AWR1843BOOST Rev. C EVM
The CAN-FD 5Mbps Tx works fine on AWR1843BOOST Rev. B EVM

We perform more test and the found: If we lower the speed from 5Mbps to 2Mbps on Rev. C EVM, it always work.

Base on the test result we suspect AWR1843BOOST Rev. C EVM "may" have layout issue related CAN-FD.

Do you have any comment?

over 4 years ago

0 Raghunandan Kamath over 4 years ago

TI__Mastermind 22155 points

James,

I have not seen this issue.

Have you checked if the issue is with the PCAN or with the AWR1843BOOST SBL ?

-Raghu

0 James Austrial over 4 years ago in reply to Raghunandan Kamath

TI__Intellectual 2910 points

Hi Raghu,

We're using AWR1843BOOST SBL.on Rev. C.

Did you use PCAN + CAN-FD test program to perform the test?
If yes, could you tell us:

1) What is your procedure?
2) What kind of CAN-FD test program you're using?

0 Raghunandan Kamath over 4 years ago in reply to James Austrial

TI__Mastermind 22155 points

James,

I mentioned that I have not seen such an issue with the SBL code on the AWR1843BOOST . I am mostly testing it on the RevB . Need to check on the RevC EVM.

You could use the CANFD test application that is available in the MMWAVE-SDK for your test as well.

Test procedure is simple . You will just need to have the S2 switch selecting the CAN and then connect the CANH and CANL lines to the PCAN-USBFD dongle.

-Raghu

0 James Austrial over 4 years ago in reply to Raghunandan Kamath

TI__Intellectual 2910 points

OK, so you mean you need to check CAN-FD on AWR1843BOOST Rev. C.

Rev. B is OK but Rev. C is not OK is our observation. Suggest to have a quick check on Rev. C.

0 Raghunandan Kamath over 4 years ago in reply to James Austrial

TI__Mastermind 22155 points

James,

I do not have a REVC EVM with me. I need to procure a REVC EVM.

Please let me know if you are seeing some errors when you use the REVC EVM. The information you have provided is not enough for further investigation .

-Raghu

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AWR1843BOOST: Rev. C EVM CAN-FD can't achieve 5Mbps sometimes, Rev. B EVM is working fine