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  1. Thread: CANbus

    by inse
    Replies
    23
    Views
    25,513

    Re: CANbus

    Christopher,
    it's hard to give sensible answers as you supply no details about the project.
    Do you know what the communication is going to look like?
    If you are going to setup a bidirectional...
  2. Thread: InfraRed Data Com

    by inse
    Replies
    5
    Views
    4,168

    Rayzrocket, can you supply more information...

    Rayzrocket,

    can you supply more information about your project?
    What distance do you want to bridge with you transmission.

    If you want to transmit the data similar as you use a remote control,...
  3. Thread: CANbus

    by inse
    Replies
    23
    Views
    25,513

    For anyone willing to dig into the CAN-bus I...

    For anyone willing to dig into the CAN-bus I conclude this thread:

    ZX81SP finally got his code running - it was a matter of oscillator configuration.
    I have listed the necessary steps for setting...
  4. Thread: CANbus

    by inse
    Replies
    23
    Views
    25,513

    Hmm... I got $03 $BF $07 for 20MHz and 100kbps...

    Hmm...
    I got $03 $BF $07 for 20MHz and 100kbps from the calculator.

    Furthermore, your CIOCON configuration differs from the one I suggested, try setting it to $20.
    Another idea: I am not sure...
  5. Thread: CANbus

    by inse
    Replies
    23
    Views
    25,513

    Another point to check just came into my mind:...

    Another point to check just came into my mind:
    The PIC you are using has internal PLL - did you check its configuration?
  6. Thread: CANbus

    by inse
    Replies
    23
    Views
    25,513

    Your program looks OK at first glance altough I...

    Your program looks OK at first glance altough I didn't verify the BRG values.
    What puzzles me is: do you really use an PIC18F258 in combination with an MCP2510?
    Or do you use the PIC18F258 with the...
  7. Thread: CANbus

    by inse
    Replies
    23
    Views
    25,513

    CAN my be a little confusing in the beginning,...

    CAN my be a little confusing in the beginning, but I am sure you will work into this.
    PIC BASIC will not help you much regarding CAN communication, you will have to set all registers by hand.
    As...
  8. Thread: CANbus

    by inse
    Replies
    23
    Views
    25,513

    Hi Tim, I had a look at your code and noticed...

    Hi Tim,

    I had a look at your code and noticed two things:

    one major bug:
    TRISB = %00000010 'Set portb.2 output (cantx) ,b.2 input (canrx) 18F248/4580
    should read TRISB = %000001000...
  9. Replies
    4
    Views
    5,464

    I think a better choice for low quiescent current...

    I think a better choice for low quiescent current would be a LP2950 voltage regulator.
    The LT1086 (similar to the 7805) needs 5-10 mA, the LP2950 less than 100uA for himself.
    Are the 70mA constanty...
  10. Thread: CANbus

    by inse
    Replies
    23
    Views
    25,513

    Hi Tim, I suggest you start setting up...

    Hi Tim,

    I suggest you start setting up communication in one direction first and add the reply function in the next step.
    Make your receiver blink a LED or put out something on a terminal when it...
  11. Thread: CANbus

    by inse
    Replies
    23
    Views
    25,513

    Hi Tim, I made a CAN interface using a PIC...

    Hi Tim,

    I made a CAN interface using a PIC 18F248.
    What exactly is your problem?

    Regards,

    Ingo
  12. Replies
    13
    Views
    10,158

    How about a different approach: Take a PS/2...

    How about a different approach:

    Take a PS/2 keyboard and a PS/2-USB adaptor and tap the data on the PS/2 side.
    There are a lot of keyboard interfacing examples out there...

    Regards,

    Ingo
  13. Replies
    6
    Views
    6,709

    Hi Tony, if you look at the pinout you have...

    Hi Tony,

    if you look at the pinout you have posted, you will see that using a three pole plug would short the microphone input to the speaker output...

    Try to get an appropriate connector...
  14. Replies
    6
    Views
    6,709

    Hi Tony, are you using a 8210 cell phone for...

    Hi Tony,

    are you using a 8210 cell phone for your project?
    As the three pole plug seems to be used there only.
    Do you have a common ground on the phone and your circuit?
    Then you should check...
  15. Replies
    6
    Views
    6,709

    Hi Tony, as far as I remember from my Nokia...

    Hi Tony,

    as far as I remember from my Nokia phone, the headset connector was a 2,5mm plug with four contacts.
    Have you verified this for your phone?
    Also I would expect the input signal for the...
  16. Thread: Adcin charger

    by inse
    Replies
    1
    Views
    2,897

    Hi Mitch, sorry for the question, but you need...

    Hi Mitch,

    sorry for the question, but you need a PIC to charge a lead acid battery?
    There are a lot of charging circuits out on the web.
    Look at national.com for the datasheet of the LM317,...
  17. Replies
    2
    Views
    3,799

    Hi Wellyboot, have fun with this link:...

    Hi Wellyboot,

    have fun with this link:
    http://translate.google.de/translate?u=http%3A%2F%2Fwww.carluccio.de%2Findex.php%2FOpel_TID&sl=de&tl=en&hl=de&ie=UTF-8

    Depending on what your car is...
  18. Replies
    67
    Views
    35,111

    Hi Eugeniu, your program is a little bit hard...

    Hi Eugeniu,

    your program is a little bit hard to read without knowing Romanian (right?).

    If you want to store the temperature value in single ASCII characters, something like this might work:
    ...
  19. Replies
    67
    Views
    35,111

    Hi Eugeniu, as I have already explained in my...

    Hi Eugeniu,

    as I have already explained in my first post:
    use the DIG modifier to separate the single digits of your calculated temperature.
    Then simply add 48 to each digit and you will get the...
  20. Replies
    67
    Views
    35,111

    Hi Eugeniu, it's not clear to me what you want...

    Hi Eugeniu,

    it's not clear to me what you want to do, maybe point 4.17.7. in the manual is what you should have a look at.

    4.17.7 DIG
    DIG returns the value of a decimal digit. Simply tell it...
  21. Replies
    29
    Views
    19,964

    Hello Roger, one thing I have noticed in your...

    Hello Roger,

    one thing I have noticed in your schematic: do you have a ground connection on the OPAMP?
    It's ground pin (4) seems to be floating...

    Regards,

    Ingo
  22. Replies
    7
    Views
    5,866

    Hi Dan, i hope you got ahead with your code in...

    Hi Dan,

    i hope you got ahead with your code in the meantime.
    My project is a clock (who could guess it?) with electromechanic seven segment displays.
    The clock is running (1/2 hour behind by...
  23. Replies
    7
    Views
    5,866

    Hello Dan, I had started a project using the...

    Hello Dan,

    I had started a project using the PCF8563 a bout a year ago (not yet finished).
    Without deeper analysing your code, I noticed, that you are using different addresses for read and...
  24. Replies
    8
    Views
    5,188

    Hi Rob, if you want your program to reiceve...

    Hi Rob,

    if you want your program to reiceve the 2k of characters and then store them to the FRAM, you would have to buffer them in the RAM.
    Which PIC are you using currently?

    Regards,

    Ingo
  25. Replies
    68
    Views
    38,086

    Hello Roger, I could improve the intialization...

    Hello Roger,

    I could improve the intialization routine (at least optically)


    Pause 150 'wait for LCD to initialize

    LCDOut $29

    Low RS
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