TPS659037 Sample Code for I2C Access

Michi Yama

Guru 10030 points

Other Parts Discussed in Thread: TPS659037, AM5728

Hi,

My customer is trying to access the register of TPS659037 through I2C of AM5728.

But it is difficult for my customer. He is reffered TRM. The roughly sequence is the following.

* Write the write command(8601h) to I2C_CON register.

* Write the PMIC register's address to I2C_DATA register.

*Write the read command(84012h) to I2C_CON register.

* Poll RRDY bit in I2C_IRQSTATUS register.

* Read the data from I2C_DATA register.

However RRDY bit of I2C_IRQSTATUS register does not become to "1".

Do you have sample code access to TPS659037 from AM5728?

I appreciate your quick reply.

Best regards,

Michi

over 9 years ago

0 Michi Yama over 9 years ago

Guru 10030 points

Hi,

I need the information to access to TPS659037 from AM5728.
Please give me sample code. Or flow chart for accessing TPS659037.
I2C module information of TRM is difficult.

I appreciate your quick reply.

Best regards,
Michi

0 Karl Wallinger over 9 years ago in reply to Michi Yama

TI__Genius 16410 points

Hello Michi,

Sorry for the delay. You can install the AM572x RTOS SDK code from this link:
software-dl.ti.com/.../index_FDS.html

From the install location, you can find PMIC code at this file:
pdk_am57xx_1_0_1\packages\ti\board\diag\pmic\src\pmic_test.c

Regards,
Karl

0 Michi Yama over 9 years ago in reply to Karl Wallinger

Guru 10030 points

Dear Karl-san,

Thank you for your support.

Unfortunately, I can't access to AM572x RTOS SDK download site.

Probably I think it is sever. Could you access to its site?

Best regards,

Michi

0 Karl Wallinger over 9 years ago in reply to Michi Yama

TI__Genius 16410 points

Hello Michi,

I see the same issue today too. I talked to our processor team, and they informed me that there is a new version being uploaded. Please try again on Monday. I'll follow up on here next week to make sure you can get the code.

Regards,
Karl

0 Karl Wallinger over 9 years ago in reply to Karl Wallinger

TI__Genius 16410 points

Hello Michi,

It looks like the file is available now. Please try it again.

Regards,
Karl

0 Michi Yama over 9 years ago in reply to Karl Wallinger

Guru 10030 points

Dear Karl-san,

Thank you for your information.

I could download it today.

I appreciate your support.

Best regards,

Michi

0 Michi Yama over 9 years ago in reply to Karl Wallinger

Guru 10030 points

Dear Karl-san,

Thank you for your support.

I submitted the source code of PMIC_TEST.c to my customer. But it is not enough for my customer.
Do you have flow chart for PMIC access? Customer uses own board. Customer try to access to PMIC by using gel file.
If they supply its gel file to you, could you check its code?

I appreciate your quick reply.

Best regards,
Michi

0 Karl Wallinger over 9 years ago in reply to Michi Yama

TI__Genius 16410 points

Hello Michi,

I'm checking with our software team. From PMIC point of view, I usually just deal with the I2C commands themselves, instead of configuring the processor to send specific commands.

You can send me the .gel file directly to my e-mail in my profile. I will try to find the right person to help you out.

Regards,
Karl

0 Karl Wallinger over 9 years ago in reply to Karl Wallinger

TI__Genius 16410 points

Michi,

In case it helps, I received the attached .gel file from our software team. You can try to run it on you customer's board, and also compare it to their .gel file to see if there are any differences.

AM57xx_PMIC_GEL.gel

Regards,

Karl

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TPS659037 Sample Code for I2C Access