How to set 18F2520 for INT OSC?

[mackrackit]

Once it finally starts does it run correctly?

[circuitpro]

Yes, it does. Regarding the EC settings, I tried using "_OSC_EC_1H", and did verify that I was getting 5 MHz (1/4 freq), out on A6. I'll be glad when this "CONFIG WIZARD" is working.

[circuitpro]

I didn't see your other questions... I'm using an external 20 MHz oscillator., and "DEFINE OSC 20" is in my code. I didn't have any trouble setting EITHER HS or EC settings (wierd), but it's the power-up delay that's confusing. Don't see a reason for it.

[mackrackit]

HS should be it. OSC input on both OSC pins.

What about MCLR?
Is it pulled high?

Since the time-outs occur from the POR pulse, if MCLR
is kept low long enough, all time-outs will expire. Bringing
MCLR high will begin execution immediately
(Figure 4-5). This is useful for testing purposes or to
synchronize more than one PIC18FXXXX device
operating in parallel.

[circuitpro]

I don't know why HS should be it. EC should be it. I'm using an External OSC. Input is only on pin A7. MCLR is pulled high w/ 4.7K, and snaps high immediately on power up.

[mackrackit]

When you said you were not using a crystal I got to thinking resonator.
You can use HS mode, OSC2 will just be an open pin.

As for your problem I am at a loss.
Maybe there is something at the beginning of your code messing things up?

[circuitpro]

This is my entire program, and I get a 25 sec. delay until the LED goes on.

ASM
     ;PORT A 
     CLRF PORTA 
     MOVLW 07h 
     MOVWF ADCON1                           ;A/D'S OFF 
     MOVWF 07h 
     MOVWF CMCON                            ;COMPARATORS OFF  
     MOVLW 00000000b                        ;PIN DIRECTION PORT A  
     MOVWF TRISA 
ENDASM

DEFINE OSC 20                                
LOW PORTA.6                                     'TURN LED ON
STOP

Thanks anyway, Dave!