You might consider using the Numerically Controlled Oscillator (NCO) to achieve this low frequency output.
I have recently been looking at the 16F1503 to achieve a stable 1Hz output.
This device...
The important part is to set the PORT (or LAT) registers BEFORE setting the TRIS registers to outputs.
Otherwise the pins will be in output mode for a period of time but the outputs aren't specified.
Competitions are subject to the privacy policy and website terms and conditions of picbasic.co.uk, owned and controlled by Crownhill Associates Limited (“Crownhill”).
The following rules shall apply, together with any instructions or rules specific to any current competition. By entering any of the community run competitions, you are deemed to have accepted the following:
...
Common Development and Distribution License (CDDL) is a free software license, produced by Sun Microsystems, based on the Mozilla Public License (MPL), version 1.1.
Re: Low frequency Hardware PWM
Thanks Barry.
Ioannis Today, 00:08Never thought of that NCO.
Ioannis