TMS320F280049: Will there be GPIO glitch during powering up?

Wayne Huang

Genius 16285 points

Part Number: TMS320F280049

Dear Champs,

I am asking this for our customers.

Would you please confirm?

F28004x is powering up from 0 to 3.3V until user's codes take control of GPIO.

1) all the GPIO are kept in high-impedance

2) there is no GPIO glitch

Is our understanding correct?

Wayne Huang

over 5 years ago

0 Nima Eskandari over 5 years ago

TI__Guru 52030 points

Yes everything is going to be in INPUT mode, then usually in the main code for our examples we enable the internal pull-up to reduce power consumption just in case.

0 Nima Eskandari over 5 years ago in reply to Nima Eskandari

TI__Guru 52030 points

Jason Whiles can you confirm?

0 Jason Whiles over 5 years ago in reply to Nima Eskandari

TI__Expert 5450 points

Wayne,

You are correct, all GPIO will be high impedance and will not glitch.

Thanks,
Jason

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F280049: Will there be GPIO glitch during powering up?