STPMIC1 I2C program

Na.11 · ‎2022-02-24

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

Olivier GALLIEN · ‎2022-02-25

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

Olivier GALLIEN
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Na.11 · ‎2022-02-25

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