Old and beyond help ?


Closed Thread
Results 1 to 40 of 47

Hybrid View

  1. #1
    Join Date
    Dec 2007
    Location
    Northants England
    Posts
    38


    Did you find this post helpful? Yes | No

    Default

    Sorry you are right, there is no crystal (it's my age) I still haven't figured out where the terms in your config expression come from. They are clearly assembler terms of some kind

  2. #2
    Join Date
    Nov 2003
    Location
    Wellton, U.S.A.
    Posts
    5,924


    Did you find this post helpful? Yes | No

    Default

    Are you using PM or MPASAM for the assembler?
    If you are using MPASAM, ( my choice) goto program files,microchip,mpasamsuite and find the *.inc file for your chip. At or near the end of the file all of the different fuse settings are listed.

    http://www.picbasic.co.uk/forum/showthread.php?t=543
    Goes into more detail. Pay close attention to Melanie and Mister_E.

    If you are still unclear let us know.
    Dave
    Always wear safety glasses while programming.

  3. #3
    Join Date
    Nov 2003
    Location
    Wellton, U.S.A.
    Posts
    5,924


    Did you find this post helpful? Yes | No

    Default

    Quote Originally Posted by DavidFMarks View Post
    (it's my age)
    How old are you???

    Look at my avatar. That is really me
    Dave
    Always wear safety glasses while programming.

  4. #4
    Join Date
    Dec 2007
    Location
    Northants England
    Posts
    38


    Did you find this post helpful? Yes | No

    Default

    Many thanks for that, Had a quick look at the link ..looks just the thing I wanted, Bit late to study now, bedtime & just got in from g daughters school musical. Age ? put it this way, Faraday hadn't satrted shaving when I got into this game and I aint going to seeing the good old three score years and ten again so its good to be helped by all you patient youngsters ! Thanks again !

  5. #5
    Join Date
    Dec 2007
    Location
    Northants England
    Posts
    38


    Did you find this post helpful? Yes | No

    Default

    Hi again,
    Got the porta I/O proble sorted insofar as i can now switch on any of the a port bits and light an led. Or so I thought, I wrote a program which switched on each bit of the port in turn held it with a pause 500 command and then switched it off and so on. When writing te Christmas star program I wrote simple code tp switch on all of the bits of PortA (they are each connected through Darlingtons to the - line of one of 16 arms (the other 8 are driven from portc by identical code (other than the port id). Now what happens is that only pins 4 6 and 8 remain high (leds lit). I have now written a separate little piece of code to test it. If I switch each pin on in turn pausing between each one (but not switching them off ) then led 0 switches on and after the specified delay it switches off and the next one comes on. only when I get to pins 4 6 and 8 do they stay switched on. Another curiousity which may be a clue is that when I compile and program the pickit2 comes on with a lower Vdd(about 3.8 and I have to turn it up again. I have also removed the darlingtons so there are only leds an port A but it has made no difference. If anyone can spot whatever my latest stupid mistake is I would be very grateful. BTW the reason I could'nt originally use pins 6 an7 was that [I] had my knickers in a twist thinking I was programming with MPASm when in fact I was using the default !!

  6. #6
    Join Date
    Aug 2006
    Location
    Look, behind you.
    Posts
    2,818


    Did you find this post helpful? Yes | No

    Default

    Hi David,
    Let's have a look at your code, and schematic, if you don't mind. What is wired on those ports (as leftover from the demo board's orig.) ? Anything?
    If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
    .
    Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
    .
    There simply is no "Happy Spam" If you do it you will disappear from this forum.

  7. #7
    Join Date
    Dec 2007
    Location
    Northants England
    Posts
    38


    Did you find this post helpful? Yes | No

    Default

    Hi
    Before I post the code I seem to remember that there is a particular etiquette for including code in a post but I can't find any reference to it. Just thought I'd ask as I dont want to upset folk . Thanks

  8. #8
    Join Date
    Nov 2003
    Location
    Wellton, U.S.A.
    Posts
    5,924


    Did you find this post helpful? Yes | No

    Default

    Code tags work well.
    http://www.picbasic.co.uk/forum/misc.php?do=bbcode#code

    Makes thing a little more readable.
    Dave
    Always wear safety glasses while programming.

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