CC2640R2F: Execution timing impacts to code running on the M3

Christopher Gates

Part Number: CC2640R2F

With the move of some of the flash libraries to ROM, I assume the M0 core is now doing more of the lower level stack functionality, thus removing some burden from the M3 core.

Is this correct?

And in any case, what is the timing impact to a running process on the M3 for a given BLE connection event?

In other words, if I have an RTOS task toggling a GPIO line every 10 uS, what is going to happen when any BLE activity occurs?

Thanks

over 9 years ago

0 Christin Lee over 9 years ago

TI__Guru 57875 points

There is no problem using CM3 while maintaining BLE connection(activity) since the radio activity is controlled by CM0.

0 Christopher Gates over 9 years ago in reply to Christin Lee

Prodigy 60 points

Thanks for the reply Christin.

So are you saying there is zero timing impact to the operation of software (i.e. a task in the RTOS) during all BLE events?

Just to be clear I am not as concerned about maintaining the BLE connection status as I am in being deterministic about the timing of my task which is involved with other things besides BLE communications.

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CC2640R2F: Execution timing impacts to code running on the M3