How to verify HS_PLL clock speed

[Bruce]

I'm using MPASM version 4.02 which complains if I use the old __config options, so I replaced the old options in the .inc file with:
CONFIG OSC=HSPLL,OSCS=OFF,LVP=OFF,PWRT=ON,BOR=ON,WDT=OFF, BORV=25,WDTPS=128,CCP2MUX=OFF,STVR=OFF

DEFINE OSC 16

LOOP:
HIGH 0
PAUSE 500
LOW 0
PAUSE 500
GOTO LOOP

With the 4MHz TTL input to OSC1, it produces .5 S pulses on RB0. So assuming your programmer isn't altering config fuse settings, and you're getting it programmed with HSPLL, then it should definitely be running at 16MHz internally.

[CocaColaKid]

I added the DEFINE OSC 16 and it only flashes about once every 2 seconds. I have cycled power and still the same thing.

[Bruce]

If you're programming in-circuit, did you cycle power?

As Darrel mentioned previously, you need to cycle power OFF then back ON when switching to HSPLL mode.

With DEFINE OSC 16 -- a 2 second pause is what you'll see if the PLL isn't locked in. It's running directly from the 4MHz TTL clock input until the PLL circuit locks-in, and kicks in the 4x PLL.

[CocaColaKid]

I think I just found my problem. The bootloader doesn't seem to be changing the configuration bits properly. I programmed the PIC in the EPIC programmer and it works fine now. Thanks for the help. I'll look further into the other programming method tomorrow.

[CocaColaKid]

Just discovered the source to my misery. According to the help file that comes with the bootloader, "The microcontroller ID location and configuration fuses are not available to the loader process. Configuration fuses must therefore be set at the time the bootloader software is programmed into the target microcontroller."

This would explain my problems. Like the expression goes, RTFM