TPS25750: About pass-through mode

Hi,

My colleague will get back to you as soon as possible.

Regards.

Hi Tommy-san,

Thank you for your response.

Regards,

Hide

Hide,

How do I use the Host Interface.docx

This document has an example of how an I2Cw 4CC command is executed.  You can look at the documentation of the I2Cw and this information and compare to the I2Cr to extrapolate how to execute the I2Cr command.

Regards,

Chuck

Hi Chuck-san,

Thank you for the information.

I understood that I can use "return code" to determine if the write was successful.

By the way, will the TPS25750 firmware be updated with the new GUI?

If yes, could you please let us know the register that can confirm this?

And, I have additional questions.

Currently, our customer are evaluating 4CC command(I2Cw and I2Cr) on USB-PD-CHG-EVM-01.

Then, they use USB2ANY.

"I2Cw" is realized by referring to the following URL.

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1024293/tps25750-i2cw

Could you please let us know the specific method of realizing "I2Cr"?

We would like to find out if “0x12” is written correctly.

And, I will ask about the contents of " How do I use the Host Interface.docx " in another thread.

Regards,

Hide

Hi,

Chuck will be out of office till Jun 21. Meanwhile I will see if any of our team member can help you with this.

Regards.

Hi Tommy-san,

I’m looking forward to hearing from you.

Regards,

Hide

Hi Hide-san,

Sorry that there are no available member to help you with this right now. You will have to wait till Chuck is back in office.

Regards

Hi Tommy-san,

Thank you for your response.

I’m looking forward to hearing from you.

Regards,

Hide

Hi Tommy-san, Chuck-san,

Could you please let us know the current status?

Regards,

Hide

Hi Chuck-san,

I understand that the “I2Cr” setting is later in the document.

>Here is the I2C traffic view of a Register Read from the TPS25750.

I would like to know a concrete example of "I2Cr" using " USB2ANY ".

However, I don't understand what to change.

> bust the Data (register (0x08) and CMD register (0x09) writes need to be changed to match the TRM document referred to above

I apologize that my comprehension is lacking..

I guess that "I2Cr" can be executed with the following settings.

Could you please let us know if you have any advice?

--

1) Load the DATA1 register

PD address | DATA1 register | #byte count | BQ address | BQ register | BQ #read bytes eg:

0x21       | 0x09          | 0x03       | 0x6B       | 0x12       | 0x10

2) Load the CMD1 register with "I2Cr"

PD address | CMD1 register | #byte count | 'I' | '2' | 'C' | 'r'

0x21       | 0x08          | 0x04       | 0x49 | 0x32 | 0x43 | 0x72

3) OUTPUT DATA

Read DATA1 register

--

Regards,

Hide

Hi Chuck-san,

I add this quesitons for other thread.

I kindly ask for your ongoing support.

Regards,

Hide