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Part Number: CC2543
Dear TI community,
I'm currently working on a custom PCB/project which is using the CC2543. One of the operating modes requires that I enter PM2 and wake up via the sleep timer every second and listen for a data packet.
This all works fine until I try and wake via an external port interrupt, which is a button press. Upon pressing the button which transmits a data packet, the system seems to operate very slowly as if its running of the RC oscillator. But after some time it returns to PM2 and starts operating normally. I am using the recommended hal_sleep modules and halSleepEnterPowerMode(POWER_MODE2); function so it looks like the handling of the oscillator switching is taken care of.
So I'm wondering if there are any general recommendations that should be followed when waking via an external interrupt from PM2 when the sleep timer is also active.
Thanks for your time.
Disabling the interrupts for the sleeptimer and Timer2(used for radio timeout) in the button press ISR fixed the problem. I was only clearing the interrupt flags previously.
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In reply to DinoAU:
In reply to RachelP:
No problems at all. I'll probably be back again :-)
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