UCD9090A: Application questions

Penn Zhang

Intellectual 1180 points

Part Number: UCD9090A

Hello,

There are 2 questions from customer manufacture, please help on this, thanks.

1. What's the instruction of switch between ROM mode and user mode?

2. How to read the checksum after programming in user mode?

Looking forward to your reply.

over 5 years ago

0 yihe over 5 years ago

TI__Guru 65610 points

Please see my comments below.

#1. we do not recommend customer to force device into ROM mode. This shall be avoided

#2. Please read section 3.2 of http://www.ti.com/lit/an/slua815b/slua815b.pdf

Regards

Yihe

0 Penn Zhang over 5 years ago in reply to yihe

TI__Intellectual 1180 points

Hi Yihe,

Thanks a lot.

Looks section 3.2 needs our GUI to read back the register, but the customer needs to do this at manufacture, could you kindly provide the method by using the PMBus to read this information back.

Thanks.

0 yihe over 5 years ago in reply to Penn Zhang

TI__Guru 65610 points

Hello

All commands mentioned in the app notes are described in the