16f628 for all outputs

I have tried about everything i know to get a 16f628 to blink my led. But to no avail. Is there some special config i need to set to have this action take place? I am just applying power, using the internal osc. set my comparator mode to 7. is there something else i should be doing?

Quote:

Originally Posted by Max_Gauss

I have tried about everything i know to get a 16f628 to blink my led. But to no avail. Is there some special config i need to set to have this action take place? I am just applying power, using the internal osc. set my comparator mode to 7. is there something else i should be doing?

Are you using the PIC16F628 or the PIC16F628A?
There's enough of a difference between the two to keep things from working.
And post some code, a schematic, something, anything.
For all I know you've got 3 buckets of grass clippings, 2 rocks, and a jar of mustard.

1 Attachment(s)

Does this help?

Quote:

Originally Posted by skimask

Are you using the PIC16F628 or the PIC16F628A?
There's enough of a difference between the two to keep things from working.
And post some code, a schematic, something, anything.
For all I know you've got 3 buckets of grass clippings, 2 rocks, and a jar of mustard.

Hi skimask,
Here is a circuit attachment I found online you might find helpful.
http://www.picbasic.co.uk/forum/atta...1&d=1179191077

hth
-Adam-

<table><td><img SRC="http://www.picbasic.co.uk/forum/attachment.php?attachmentid=1629&stc=1&d=117919107 7"></td>
<td>
Jar of mustard = +5V

RCK 1, RCK 2 = Gnd

GCB1, GCB2, GCB3 = LED + 330 OHM Resistor

PIC16F84 = something that should be removed from the market since 10 years, can happilly be replace by a 16F628. If you do it, remove the crystal + both 22pF capacitor and try the code bellow

</td></table>

Code:

 ' ' Pic Configuration ' ================= ' ' Here we will set the PIC configuration fuses ' to use the internal PIC oscillator and disable the MCLR ' pin. @ __CONFIG _INTRC_OSC_NOCLKOUT & _MCLRE_OFF & _LVP_OFF & _WDT_OFF & _PWRTE_ON & _BODEN_ON ' ' This assume you're using MPASM to compile your code ' For detailed information about Configuration fuse setting, ' have a look to "Presetting Configuration Fuses (PIC Defines)" thread ' in the forum FAQ section. ' http://www.picbasic.co.uk/forum/showthread.php?t=543 ' ' Hardware assignment ' =================== GCB_1 VAR PORTB.0 GCB_2 VAR PORTB.1 GCB_3 VAR PORTB.2 ' ' Hardware configuration ' ====================== TRISB = 0 ' Configure all PORTB i/o to output ' ' Software/Hardware initialisation ' ================================ PORTB = 0 '------------------------------< Main program >----------------------------------- ' Start: ' ' Here will do the 'buckets of grass clippings' light show ' using a simple method... not the best ' GCB_1 = 1 PAUSE 500 GCB_2 = 1 PAUSE 500 GCB_3 = 1 PAUSE 500 GCB_1 = 0 PAUSE 500 GCB_2 = 0 PAUSE 500 GCB_3 = 0 PAUSE 500 GOTO Start ' '---------------------------------------------------------------------------------

Quote:

Originally Posted by Pic_User

Hi skimask,
Here is a circuit attachment I found online you might find helpful.

hth
-Adam-

Good answer! :D
Oh Man! I near fell outta my chair! :D

Thank You Gentlemen soo Much

Thanks be to you all and my Lord Jesus..
Each one of you have help me and i do so appreciate it. My 628 is now operable, and it is so wonderful.
This was my problem.
I was initially programming the 16f84 using MPLAB Assem. with PicStart Plus with upgrade. Then i bought PBP, which is so nice, and i changed to the 16f628. then using MIcroCode Studio i wrote a very simple piece to blink my LED. BUT .. NO blink.. I tried the 16f84.. NO blink.. WOW whats wrong. I tried 45 or 55 times .. NO. blink. I peruse to manuals. I went on internet. I called PBP, You've got to love them for they put up with such as i am. I joined this forum. I wrote the code in MicroCode Studio then selected "compile/Program". It would compile, then started up my MPLAB and leave me in the MPLAB screen. I would select my file. Set my config bits, and select my programmer, then program. There were NO errors, no issues. Also..NO blink. What it programmed into the chip, I have no idea. but it did programm and verify with no errors. What i did WRONG. When PBP brought up my MPLAB and I set my config bits, and selected my programmer.. I DID NOT compile my project in MPLAB.When PBP sends you to MPLAB, YOU have to compile the project. If you do not compile, it will programme something i know not what to the chip, but it will not work.. NOW my LED blinks.. Praise the Lord and thanks to you gentlemen soo much..
jlittle