CC3200: How to measure the accuracy of the 32KHz clock?

Paul Kuan

Prodigy 190 points

Part Number: CC3200

Is there any way to output the 32KHz clock to an output pin for clock accuracy measurement?

over 8 years ago

0 Josh Wyatt over 8 years ago

TI__Guru* 91206 points

Paul -
i would think an oscilloscope or frequency counter would be best way to have a look at your 32.678kHz crystal.

0 Paul Kuan over 8 years ago in reply to Josh Wyatt

Prodigy 190 points

Hi Josh,
Thanks for your feedback. We are a wireless module manufacturer. All modules will have shield cans soldered after the SMT process. Therefore, direct probing the 32.768KHz crystal is not feasible. Therefore, we'll need to find a way to route the 32K clock (or any clocks derived from it) to a GPIO pin for measurement. Does CC3200 support this ? Any suggestions?

0 made4engineering over 8 years ago in reply to Paul Kuan

TI__Mastermind 27605 points

Hi Paul,

The CC3200 does not support routing of the clock directly to IO

-Aaron

0 Paul Kuan over 8 years ago in reply to made4engineering

Prodigy 190 points

Thanks. This thread can be closed.

Paul

Wi-Fi

Wi-Fi forum

CC3200: How to measure the accuracy of the 32KHz clock?