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CCS/TMS320F280049: sprui33a: internal pull ups enabling function for unbonded pins in less than 144pins package

Ankit Shah19
Prodigy 10 points

Part Number: TMS320F280049

Tool/software: Code Composer Studio

Hello,

I have two queries regarding GPIO's condition as it is mentioned in sprui33a(Technical ref manual) section 8.6.

1. Is is required to configure unused GPIOs to the particular condition out of the three mentioned or we can leave it floating? How could it affect if its not configured as they are unused pins and no where connected in the circuit.

2. In the datasheet of TMS320F280049 section 4.5 under table 4.9 one note is there which says "Pins not bonded out in a given package will have the internal pullups enabled by the Boot ROM.". But in technical ref manual (sprui33a) it says that there is a function in c2000 ware which can be used to pull up the unbonded GPIOs. So is it already been pulled up by Boot ROM or we have to use the function to pull up?. In additon, I am not able to find the function in gpio.h library. Can anyone please provide the function?

Thanks in advance...