Novice 16F83A BLINK LED program help

[Pic_User]

Hi owali,

Welcome to the PICBASIC forum. You are on the right track, starting with a simple, program and circuit.

Oscillator=RC
Is generally used for the Resistor/Capacitor Oscillator not for a 20 MHz ceramic resonator.

-Adam-

[owali]

What setting should it be on for a resonator? XT? I just programmed it with XT and the result is the same.

Are there any other settings that could be wrong on melab?

Oscillator=RC
Is generally used for the Resistor/Capacitor Oscillator not for a 20 MHz ceramic resonator.

-Adam-

[Pic_User]

Hi owali,

I could not find any reference to the PIC16F83A.

If you PIC can allows a 20Mhz resonator try:
DEFINE OSC 20

Also, the PBP manual says;
The oscillator defaults to XT on most devices.
This is the setting for the default 4MHz oscillator.
If a faster oscillator is used, this setting must be changed to HS.

-Adam-

[owali]

Sorry, it is actually a PIC16F84A

Hi owali,

I could not find any reference to the PIC16F83A.

If you PIC can allows a 20Mhz resonator try:
DEFINE OSC 20

Also, the PBP manual says;
The oscillator defaults to XT on most devices.
This is the setting for the default 4MHz oscillator.
If a faster oscillator is used, this setting must be changed to HS.

-Adam-

[Pic_User]

Hi owali,

See Melanie’s extremely helpful post:
Presetting Configuration Fuses (PIC Defines) into your Program
http://www.picbasic.co.uk/forum/showthread.php?t=543

Are you using PBP or PBC compiler?

-Adam-

[owali]

I am using PBP