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  1. Re: PIC 18F2431 PORTB.6 and 7 - strange behavior on restart after a few hours "rest"

    Thank you very much ;)
  2. Re: PIC 18F2431 PORTB.6 and 7 - strange behavior on restart after a few hours "rest"

    You mean turn it ON, right? What is it going to do please? I don't get it reading the datasheet :o


    Yes, I need it for ICSP. It is now tied to VDD with a 4k7 resistor and to VSS via a 100nF....
  3. Re: PIC 18F2431 PORTB.6 and 7 - strange behavior on restart after a few hours "rest"

    I have a 100nF across VDD and VSS pins of the PIC and two capacitors "enclosing" the voltage regulator (currently not on the board - it doesn't like the power coming from the PICkit programmer). I...
  4. Re: PIC 18F2431 PORTB.6 and 7 - strange behavior on restart after a few hours "rest"

    Thanks Pedja089 for your advice.

    Except for 4 pins, all ports are OUTPUTs. The only 4 INPUT pins have each a pull-up resistors (10k).

    You're right, the ground-planes are missing (both sides);...
  5. Re: PIC 18F2431 PORTB.6 and 7 - strange behavior on restart after a few hours "rest"

    Thanks a lot Sayzer.

    The 0.1F cap alone did the trick :)

    8898

    I did a quick search in the datasheet but there is nothing about this in there.

    Anyway, you helped to sort this out - thanks...
  6. Re: PIC 18F2431 PORTB.6 and 7 - strange behavior on restart after a few hours "rest"

    Thanks Sayzer,

    I already found some tricky PIC's behavior around the MCLRE pin but couldn't get rid of the problem :(

    I'll give it a try - thanks a lot again ;)

    If some PIC "makers" could...
  7. PIC 18F2431 PORTB.6 and 7 - strange behavior on restart after a few hours "rest"

    Hello everyone,

    I have made a little circuit based on a 18F2431; it's un circling dot on a 8x8 LED matrix.

    My code below works well BUT when I restart my circuit after a few hours "rest" (= no...
  8. Re: Finding the MCU I need on MICROCHIP's website

    Thanks All.

    I finally went for a 18F2431...I had to find out after some more search ;)
  9. Finding the MCU I need on MICROCHIP's website

    Hi there,

    I'm asking for some guidance on how to use the MAPS or the Parametric Search Tool from MICROCHIP.

    My project consists of driving a 8x8 LED matrix. So, to make it a little more "easy"...
  10. How do I send MANCHESTER encoded data over serial comm?

    Okay, this is what I was assuming.

    I agree with Richard. I have put my cheap modules by side (= dropped into the bin); too much effort to get them deliver something acceptable.

    8837


    ...
  11. How do I send MANCHESTER encoded data over serial comm?

    Ioannis, may I ask what type of transmission you use then - if it is not serial?
  12. Re: How do I send MANCHESTER encoded data over serial comm?

    Thank you Ioannis,

    This is the encoding code I already use :wink:

    Still trying to make my communication better. Need a little more time...
  13. How do I send MANCHESTER encoded data over serial comm?

    Hi All,

    I am wondering how I can really send MANCHESTER encoded data over serial comm.

    I'm tuning up a project involving the use of RF modules (such as TLM434) where MANCHESTER coding makes it...
  14. HSERIN/HSEROUT strange behavior receiving data with DEC modifier

    Just found this thread where a similar problem occurs: http://www.picbasic.co.uk/forum/showthread.php?t=3060
  15. Re: HSERIN/HSEROUT strange behavior receiving data with DEC modifier

    Yes, of course; this was just an example of a "wrong" value.

    If you declare MyData as WORD and send, lets say something like 100000, see what happens.

    As soon as something is not as it should...
  16. HSERIN/HSEROUT strange behavior receiving data with DEC modifier

    Hi All,

    I'm facing a problem I don't know the answer.

    I'm running this code with a serial comm loopback (MCS's Serial Communicator).

    As long as I'm sending 100% correct data (3 digits...
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    Re: SPIMAST + SPISLAVE adapted to 16F690

    Thanks a lot Richard.

    AAMOF, MELABS example is and stays...an example.

    Nice to see that you have so much and good things to share with us about that SPI :smile:
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    working code - SPIMAST (=> SPIMASTER) + SPISLAVE adapted to 16F690

    Hi,

    Here is my working code for SPI comm on 16F690 PICs.

    Unfortunately, I still don't fully get why it works...but it works :D

    8827
    8828
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    Re: SPIMAST + SPISLAVE adapted to 16F690

    Thanks for your quick answer, Richard.

    You're absolutely right - I'm (again) learning SPI based on what I could find on the MELABS site as a start.

    But I'll have a good look at your 16F1829...
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    Re: SPIMAST + SPISLAVE adapted to 16F690

    So this is how far I got up to now:


    ' Name : SPIMAST_16F690.pbp
    ' Compiler : PICBASIC PRO Compiler 2.6
    ' Assembler : PM or MPASM
    ' Target PIC : adapted to PIC 16F690 (40-pin 16F...
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    Re: SPIMAST + SPISLAVE adapted to 16F690

    Yup, your just faster than me :D

    I drew only the SPI connections but the ground is already common as required.

    I'll give it a look in a few moments....
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    Re: SPIMAST + SPISLAVE adapted to 16F690

    8820
    Richard,

    Let me first have a re-re-read of the DS before searching any further for me :wink:

    I must be missing something here.....
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    Re: SPIMAST + SPISLAVE adapted to 16F690

    88198818


    Hum....what is an O/P pin?
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    SPIMAST + SPISLAVE adapted to 16F690

    Hi there,

    Wanting to learn about SPI communication using the PIC's hardware feature, I've slightly adapted both SPIMAST and SPISLAVE examples to make them fit into a PIC 16F690.

    But I've been...
  25. Re: Interrupt stops while in SERIN2 "WAIT" state

    You're absolutely right. First time I used them, it was a nightmare and I couldn't make them work properly until I found Melanie's post explaining Manchester encoding...
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