CC2538: Status of GPIO's while start/Restart of system

Raghunandana DS

Mastermind 6385 points

Part Number: CC2538
Other Parts Discussed in Thread: CC2640R2F

Hi,

I want know what will be the status of the GPIO's in CC2538 during Start or Restart.

Case - 1 : Think that I have not touched any GPIO

Case - 2 : Think that I have configured few GPIO's as input and few as output

over 7 years ago

0 PM over 7 years ago

TI__Mastermind 27145 points

Hi,

The initial conditions after a reset are as follows:
• I/O pins are configured as inputs with pull-up.
• CPU program counter is loaded with 0x0000 0000 and program execution starts at this address.
• All peripheral registers are initialized to their reset values, see register descriptions for reset values.
• Watchdog Timer is disabled.
• Clock-loss detector is disabled.
During reset, the GPIO pins are configured as inputs with pull-up.

Please refer to Section 7.4 of User Guide (SWRU319) for more info.

Thanks,
PM

0 Raghunandana DS over 7 years ago in reply to PM

Mastermind 6385 points

Hi PM,
What will be in case of "CC2640R2F" ?
Thank you.

0 PM over 7 years ago in reply to Raghunandana DS

TI__Mastermind 27145 points

Hi,

Please refer to Chapter 11 ( Section 11.5) of CC26x0 User Guide SWCU117.

Thanks,
PM

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CC2538: Status of GPIO's while start/Restart of system