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Na.11
Na.11
Associate
February 24, 2022
Question

STPMIC1 I2C program

  • February 24, 2022
  • 2 replies
  • 1206 views

I have a STPMIC1E on my board, it is used with a STM32MP157 chip. 

I am currently trying to program the PMIC IC via the GUI but it won't connect to the bus. It says USB to I2C bus not connected.

Any ideas?

Thanks

This topic has been closed for replies.

2 replies

Olivier GALLIEN
Olivier GALLIEN
ST Technical Moderator
February 25, 2022

Hi @Na.1​ ,

Can you elaborate what you mean by "I am currently trying to program the PMIC IC via the GUI" ?

for STM32MP157 we usually recommand  STPMIC1A or 1B .. why using a 1E ?

Are you successfully booting and executing TF-A and Uboot ?

Olivier

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Na.11
Na.11Author
Associate
February 25, 2022

Hi Olivier

I was basically trying to reprogram the 1E chip to become a 1A by changing the register values, procedure detailed in AN5440.

I was successful in doing so, I had to use my I2C chips native interface to talk to the PMIC.

I am currently struggling with the booting, TSV flashing service failed. This occurs during the FSBL.

Yuveer

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