The PIC does not start its program.


Results 1 to 37 of 37

Threaded View

  1. #22


    Did you find this post helpful? Yes | No

    Exclamation I would try......

    Get some breadboard and stick your PIC on that. Your circuit MAY have worked before, but solder dries up after a while. It may be worth your while re-soldering (neatly) every join you've made on that board and starting again. The circuit you want to build......it's SOOOOOO easy, but you have made it sooooooo complicated.
    TRY the following. With your multimeter check the outputs on PORTB.7 , PORTB.4, PORTB.6, PORTA.0, PORTB.0, PORTA.5, but check them ON THE CHIP. This will discard hardware error. If your PIC is programmed as per previous posts, then you will get 5V on these outputs - albeit for just half a second. It may be worth your while making that program a loop so your LED's oscilate between OFF and ON and not just ON for 500mS. That really doesn't help you none.

    IF you have 5V on all those pins above, your PCB needs to be re-done. It may work for programming, but...........

    IF you have breadboard, then do the following. 5V on pins 4 and 14, GND on pin 5, your XTAL on pins 15 and 16, the ANODE of your LED's on PINS 13, 12, 4, 17 and 6, the CATHODES connected to GND via a 4k7 resistor. You will need nothing else for this to work (for now). Don't bother with your reset switch just yet. Get the basics going first.





    AND SKI, it's not just the sugar that will decay your teeth, the acid from your saliva will eat through the enamal and calcium, so use a calcium replacing toothpaste. I personally like the green lollipops best
    Last edited by gringobomba14; - 27th July 2008 at 10:49.

Similar Threads

  1. Automatic VB6 to pic serial connection
    By arniepj in forum Code Examples
    Replies: 13
    Last Post: - 10th January 2008, 07:57
  2. Replies: 14
    Last Post: - 26th September 2007, 05:41
  3. Pic16f84 and RC5 kode
    By terminator in forum Bluetooth
    Replies: 5
    Last Post: - 18th June 2007, 21:40
  4. Pic Start Plus Help
    By shawn in forum mel PIC BASIC Pro
    Replies: 4
    Last Post: - 7th March 2007, 03:47
  5. Output PIC module
    By freelancebee in forum mel PIC BASIC Pro
    Replies: 5
    Last Post: - 12th September 2005, 20:10

Members who have read this thread : 0

You do not have permission to view the list of names.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts