Can't get blink circuit to work :(

[Pic_User]

Yep I have a resistor there

Yep I have a 16F84A

As for the 78L05 That doesn't have a cap
but can it stop the circuit from working?

I have a 4mhz resonator with the middle going to ground

The “DEVICE” in your code is listed as a “@ DEVICE pic16F84”

See this thread:
Novice 16F84A BLINK LED program help
http://www.picbasic.co.uk/forum/showthread.php?t=6763

The 78L05 or any three terminal linear regulator needs an “input capacitor”, if it is a distance from the rectifier filter capacitor.
If you don’t have a rectifier filter capacitor, THAT is a problem.

-Adam-

[Techbuilder]

Ohh opps even when I reprogrammed it still nothinghttp://www.picbasic.co.uk/forum/images/icons/icon9.gif
Unhappy

The link you gave me was different from mine.

His at least turned on

mine doesn't even do that

Shouldn't the sample program work from pbp?

[Pic_User]

Ohh opps even when I reprogrammed it still nothinghttp://www.picbasic.co.uk/forum/images/icons/icon9.gif
Unhappy

The link you gave me was different from mine.

His at least turned on

mine doesn't even do that

Shouldn't the sample program work from pbp?

Hi Techbuilder,

You are right, the other poster had a slightly different problem, with the PIC16F84A not blinking correctly, than you have.
But, if you could read some of the parts that MIGHT apply to your general problem, that would save the people trying to help, from repeating the same information.
It is a little easier to read than to type, and it is the reader needing the information not the person helping. This reduces the burden on the people helping, so that they do not get burned out and stop trying to help.
In fact it is considered good forum practice to search diligently, for any answered problem, that could contain a clue, before asking.

Some of the parts that MIGHT apply:

But, you may be trying too hard. Most of the defines are already supplied by the default *.INC file (16F84A.INC).

In Microcode Studio make sure you are using the button for Compile(ing) AND Program(ing), NOT the button for just Compile(ing).

See this microEngineering Labs web page:

Specifying configuration bit settings in PICBASIC PRO programs.
If you add a configuration directive to your program file, you are actually replacing the default configuration that the compiler would otherwise include. The easiest way to determine the correct syntax is to get examples from the compiler and assembler's built-in resource files. To that end, it's best to understand how the compiler determines the config defaults....

....The first thing the compiler looks for is a file in the PBP folder that matches the targeted PIC. If you tell it to compile for a 16F84A, it reads the file "16F84A.INC". The contents of this file are divided into 2 sections, one for each assembler. An internal variable, "PM_USED", tells the compiler which section of the file to use. In the following example, you will see that the top section ("ifdef" to "else") is meant for the PM assembler and the bottom section ("else" to "endif") is meant for the MPASM assembler.

http://www.melabs.com/support/config_defaults.htm

This might mean that if you refer to a different device in your code, compiler or programmer, you may run into trouble.

Let us know if you have tried any of our posted suggestions.

Did you add the capacitor to the 78L05?
Did you change the DEFINES in your code to @ DEVICE pic16F84A

The sample PBP program should work for your project, don’t give up.

-Adam-