I need a PWM signal with the following specifications (from the
manufacturer):  period 17ms, minimum duty 1ms, maximum duty 2ms.

I'm using a PIC16F873A on this project, and would really really really like
to generate the PWM in hardware.  Reading the chip's datasheet implies that
the slowest PWM signal on the CCP1/2 is 1.2kHz (about 20x too fast).  Are
there any clever tricks that can slow it down to about a 17ms period?  All
the timers and interrupts are free for use, but like I said if there's a way
to get the PWM module to do it that would be ideal.  If all else fails I can
cobble together an interrupt to do it, but the code is fairly time critical
so it would need to be really quick.

Thanks!

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