During Flashing the GPIO's are toggeling

Christian H.

I'm using am custom board with the F28335. When i flash the controller with Matlab/Simulink or CCS 5, my GPIO's are toggling. Is there a way to set default states for the GPIO's during flashing?

Thank you in advance for your help in this matter.

Christian

over 10 years ago

0 Wil P. over 10 years ago

Expert 1630 points

The default state of (most of) the GPIO pins on your processor are pulled-up and set to input.

You will see LOW to HIGH to LOW again during a reset/ re-program if you have a pin set to LOW in your program.

0 Prakash Kumar Thulasi Kumar over 7 years ago in reply to Wil P.

Expert 2015 points

Hi William,

How long is the GPIO high??

0 Wil P. over 7 years ago in reply to Prakash Kumar Thulasi Kumar

Expert 1630 points

Hey Prakash!

It depends on the code. Generally, you should compensate for this in your application, even if you turn off the pins in the first line of the code, they will still toggle on then off.

0 Prakash Kumar Thulasi Kumar over 7 years ago in reply to Wil P.

Expert 2015 points

Thanks William :)

C2000™︎ microcontrollers

C2000 microcontrollers forum

During Flashing the GPIO's are toggeling