Hi there!

I am trying to create a quick and dirty HPWM SIGNAL AROUND 455khz
using nothing but the internal, factory calibrated, 8mhz oscillator of a pic16F690.
(I don't need high resolution duty cycle).

I believe this could either be done either by:

1) using prescaler 1:1, pr2 = 3
and tuning the pic down to around 7mhz using OSCTUNe register:
10000 = Minimum frequency (8mhz -12% = 7,04 ~ 7mhz)

2) using prescaler 1:1, pr2 = 4 and using OSCTUNE TO GET
UP TO AOUND 9 mhz

01111 = Maximum frequency (8mhz +12% = 8,96mhz ~ 9mhz)


For some reason I get the feeling I might be missing something though...
All comments appreciated...


greetz,
mike