AM623: How to derive the VPP LDO ENABLE PIN number for the otp keywritter app

CHETHAN MN

Part Number: AM623

Tool/software:

When we are building the otp keywritter for custom board , how to derive the VPP LDO enable PIN , i have details of the GPIO which will be used to enable 1.8V as told in the documents

How this 4U is derived in the below line can you give us some info on this .

/* VPP LDO ENABLE on AM62X SK */ #define EFUSE_VPP_PIN (4U)

5 days ago

0 Prashant Shivhare 5 days ago

TI__Mastermind 47841 points

Hello,

The default `keywriter_setVpp` function is implemented for TI EVM's schematics. If you are using custom board, you would have to modify the function according to your schematic design for the VPP enable.

If you are using GPIO to control VPP, you may have a look at the following thread:

e2e.ti.com/.../5127460

Regards,

Prashant

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AM623: How to derive the VPP LDO ENABLE PIN number for the otp keywritter app