how to solve high voltage appearring after reset until init code about MPC5744P

[jinhui_wu]

Due to Weak up-pull resister of GPIO pin,there will be a high level voltage apperring.

because i use the GPIO to drive a high-side IC and high level is an active level.

Therefor,after mcu reset,the GPIO appear high level until GPIO init fuction.

the high level will effect the high-side IC,this may result in some error in my board.

How to solve high voltage?

[petervlna]

Hi,

You have to apply external pull down on this GPIO.

There is no possibility to reconfigure this other then in application SW.

Peter

[jinhui_wu]

What's the mean of "There is no possibility to reconfigure this other then in application SW."

if i apply external pull down resister.what's the value of resister do you suggest?

if i pull down 5kOhm,does the GPIO have 1V voltage？