CCS/TMS320F28377S: How to set up a GPIO pin as an Anolog Input pin

Hang Li

Prodigy 140 points

Part Number: TMS320F28377S
Other Parts Discussed in Thread: LAUNCHXL-F28379D

Tool/software: Code Composer Studio

Hi Dear all,

Could you please help? I'd like to set GPIO pin 30 as ADCINA6 for example. How am I be able to do that?

Thanks

over 6 years ago

0 Frank Ankapong over 6 years ago

TI__Mastermind 28275 points

Hi Hang,

You can't setup a GPIO as an analog input. The ADC inputs have their own dedicated pins.

0 Hang Li over 6 years ago in reply to Frank Ankapong

Prodigy 140 points

Thanks a lot for your reply Frank.

I am trying to use 13 ADCin pins at a time.

As shown in Quick start guide, there are 14 ADC pins that I can use, but two of them are just not working, so I am looking for a pin to replace it.

So it's not possible to set up the pin I circled in red as an analog input pin?

Thanks,

Hang

0 Frank Ankapong over 6 years ago in reply to Hang Li

TI__Mastermind 28275 points

Hang,

The pin you have circled is not working because it is not connected to the device. If you want more pins than the 14 ADC inputs available, the LAUNCHXL-F28379D might be something to consider as it has 16 ADC inputs.

0 Hang Li over 6 years ago in reply to Frank Ankapong

Prodigy 140 points

Ok I got it. Thanks for helping!

Hang

C2000™︎ microcontrollers

C2000 microcontrollers forum

CCS/TMS320F28377S: How to set up a GPIO pin as an Anolog Input pin