Using HPWM to blink an LED?

[Acetronics2]

Christopher,

IF you'd wanted to use HPWM ... there's a Timer1 unused aboard your chip ... YESS !

So, running TMR1 as a free timer and toggling the led at each TMR1 overflow interrupt ... will do the job. A basic interrupt should be enough ...

Without any "external" counter, you should get a ~ 1 sec maximum period @ 4 Mhz clock ...

Alain

PS: It's a bit like giving marmelade to a pig ... but, if unused ...