TPS25751: development with external mcu and BQ25731

Hi Jan,

Let me check with Conner to see what the status is on this.

Thanks and Regards,

Chris

Hi Jan,

Just to confirm, the issue is related to the timing between when Active RDO is updated in regards to the Accept and PSRDY messages? I'm checking internally to see if/how the issues is being addressed. I think another option is to update the register sooner.

There is not a way to delay the generation of the PS_RDY. We monitor the voltage and the workaround where you apply 20-V may be triggering the PS_RDY.

The current best option is likely to improve the register update timing.

Thanks and Regards,

Chris

Hi Chris,

yeah, that would be great, if ACTIVE_CONTRACT_RDO reg 0x35 would be updated with requested PD profile much sooner than in 120ms after 20V apply. Are you planning to do so? When it will be available for testing in new Application_Customization_Tool?

thank you

Hi Jan,

Thanks for the confirmation. That solution is currently being evaluated by the team. From the communication I have received, it is currently looking to be 2+ weeks for them develop the feature. Depending on when this aligns with the APP_Customization_Tool release schedule, it could be 1+ months.

Thanks and Regards,

Chris

Just one more note, it would be great, if ACTIVE_CONTRACT_RDO reg 0x35 would be updated with requested profile number right after PD message REQUEST reception, without the need of setting the OTG voltage to 20V at all.

thank you

Hi Jan,

The team is still evaluating the issue, but my current understanding is that the RDO register will be updated right after sending the Accept message, which will align with the timing of the Sink Transition Completed interrupt you are currently using.

I'll keep you updated as I hear from the team!

Thanks and Regards,

Chris

Hi Chris,

I noticed new USBCPD-APPLICATION-CUSTOMIZATION-TOOL has been released - Ver 1.0.0, does this version include repaired behavior discussed here, please? If not, is there any update when it will be released?

thank you a lot

Hi Jan,

The latest GUI does not have the fw fix. I am pushing on the team to provide expected timelines and will update you with that information when I receive it.

Thanks and Regards,

Chris

Hi Chris,

do you have some news for us please? We would like to release our product soon and it would be great if it would be fixed by that time.

Thank you

Hi Jan,

Apologies, no news yet. I'm contacting the team again to provide timelines and updates on progress. I'll push harder for answers.

Thanks and Regards,

Chris

Hi Chris,

any news please? It is already more than a month from when you wrote us it could take around 1+ month. We are looking forward to the patch.

thank you

Hi Jan,

Apologies for the delays. A fix was made and is currently being tested. Testing has been progressing slowly due to challenges involving the testing.

If you are open to it, I can see if it possible to get you an engineering version of the patch to test on your end.

Thanks and Regards,

Chris

Hi Chris,

yes we would like to test the engineering version of the patch if possible.

thank you

Hi Jan,

Got it, reaching out to the team to get the engineering version. They are in a different timezone so I should expect to get a response by tomorrow.

Thanks and Regards,

Chris

Hi Chris,

how is it going with engineering version, please? And when will be available the final version for everybody?

thank you

Hi Jan,

Sorry for the delays, something came up and this was put on hold. I'll provide you the engineering version tomorrow.

Can you share your latest json with me so I can build the binary files for you. Also, how are you programming the systemr, do you need the full flash binary or the low region .c file?

Thanks and Regards,

Chris