CC2642R: How to direct the internal 48 MHz RCOSC_HF of CC2642 to a GPIO for output measurement

Erin Chen

Prodigy 60 points

Part Number: CC2642R

Tool/software:

Hi Sir,

I use the SDK Version:simplelink_cc13x2_26x2_sdk_5_10_00_48.

BLE5 example : simple_peripheral

How to direct the internal 48 MHz RCOSC_HF of CC2642 to a gpio for output measurement?
For example, we have measured an external crystal 32KHz exported to a GPIO for output measurement, the example is as follows:
IOCPortConfigureSet(IOID_26, IOC_PORT_AON_CLK32K, IOC_STD_OUTPUT);
AONIOC32kHzOutputEnable();
Does RCOSC_HF have a similar API for calls?

Thank you.

2 months ago

0 FI 2 months ago

TI__Mastermind 20630 points

Hi,

It is not possible to do that for 48MHz clocks.

We do however can check this indirectly by running a GPtimer with 48MHz clock and directing the divided down clock on a GPIO.

regards,

0 Erin Chen 2 months ago in reply to FI

Prodigy 60 points

Thanks for your response.

Can you give me an example of how a GPtimer can be used to make a 48MHz clock and import the divided clock into a GPIO, and can this be used in an RTOS running?

regards,

0 Erin Chen 1 month ago in reply to FI

Prodigy 60 points

Hi FI,

Can you help me share the sample codes about how to use the GPTimer to measurement the internal 48 MHz RCOSC_HF out to gpio pin ? Thank you.

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CC2642R: How to direct the internal 48 MHz RCOSC_HF of CC2642 to a GPIO for output measurement