Wpantund program initialization failed when hardware flow control was enabled in coprocessor code

[Ethan.Shi]

Hi

I plan to enable hardware flow control in the coprocessor code. After successful compilation and burning, I will use Ubuntu to start wpantund and an error will be reported

When I comment out hw-flow-control in my overlay file,wpantund starts normally

Is there any way I can successfully start and initialize wpantund using hardware flow control

[Sigurd Hellesvik]

Hi

Which hardware are you running the Coprocessor on?

Have you followed our guide at Thread Border Router on how to set up the OTBR?

If you are running on a Developement Kit, make sure that you follow step 2 to "Disable the Mass Storage".

Regards,
Sigurd Hellesvik

[Ethan.Shi]

Hi

I use NRF52833 to run coprocessor programs.

I didn't use OTBR, I just used wpantund.

Thank you for your answer

Ethan

[Sigurd Hellesvik]

Hi

Ethan.Shi said:

I use NRF52833 to run coprocessor programs.

Is this on a custom board or on one of our Developement Kits?

Regards,
Sigurd Hellesvik

[Ethan.Shi]

Hi

On the nrf52833 - DK

Regards,

Ethan

[Sigurd Hellesvik]

Hi

In that case, try to disable mass storage. It might interfere with the Hardware control:

JLinkExe -device NRF52840_XXAA -if SWD -speed 4000 -autoconnect 1 -SelectEmuBySN SEGGER_ID
J-Link>MSDDisable
Probe configured successfully.
J-Link>exit

Does this fix the issue?

Regards,
Sigurd Hellesvik

[Ethan.Shi]

Hi

I entered the msddisable command on the j-link commander tool，The test results have not changed and wpantund still cannot be initialized.

Regards,

Ethan