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Sleep mode on a 18F87J11

 
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mobrien99



Joined: 15 Apr 2013
Posts: 3
Location: Penn Yan, NY

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Sleep mode on a 18F87J11
PostPosted: Tue Jul 23, 2013 9:43 am     Reply with quote

I would like to extend battery life by sleeping or idling the processor.
I have a 100 ms interrupt routine based on timer1 and an SPI interrupt that comes alive when a packet is received from my SiLabs transceiver tied to pin B0.
Code:

// define for high to low transitions
ext_int_edge(0,H_TO_L);
enable_interrupts(int_ext); // enable Pin B0 for si4455 interrupts

What is the best way to set up the sleep mode? Will the interrupt overflow from the timer1 interrupt routine wake me up and if so would get_timer1 return the utilized ticks to get awake again? If an SPI interrupt would have occurred between the 100ms slices, will I miss that if I am sleeping?

Thanks

Mike O'Brien
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