CC2640: Does HAL_SYSTEM_RESET set all Pins to low?

Thomas Randl

Part Number: CC2640

Hello,

I have a board layout which includes one pin that if set to low will shutdown the board. This is necessary for long shipping.
In the production software I do not want this pin to be low.

When I make an update on the production software I am currently reseting the board with the HAL_SYSTEM_RESET from the hal_mcu.h.
As far as I could find out this function resets the pins and seems to pull the mentioned pin to low.

Is there an alternative for the HAL_SYSTEM_RESET, that does not affect the pins, or do you know of a possibility to ignore this pin in the reset process?

Thank you

over 5 years ago

0 FI over 5 years ago

TI__Mastermind 21280 points

Hi,

I believe SysCtrlSystemReset() would work here.

http://dev.ti.com/tirex/explore/node?node=ACPe.y.AhNA4diU86GpL3w__krol.2c__LATEST

Thanks

0 Thomas Randl over 5 years ago in reply to FI

Prodigy 70 points

Thank you,

I looked this function up, but I am not sure how it actually works since it is never returning.
Do I have to do anything in advance to this call?

0 FI over 5 years ago in reply to Thomas Randl

TI__Mastermind 21280 points

Hi,

This API should not return but just do a system reset. I guess in your case the reset might not be happening altogether.

Can you try the following register write.

HWREG( AON_SYSCTL_BASE + AON_SYSCTL_O_RESETCTL ) |= AON_SYSCTL_RESETCTL_SYSRESET_M;

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CC2640: Does HAL_SYSTEM_RESET set all Pins to low?