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  1. Replies
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    Re: OWOUT Glitch

    Thanks that explains it.. :cool:
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    Re: OWOUT Glitch

    But why does doing something wrong with PORTA LAT affect PORTC????
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    Re: OWOUT Glitch

    More testing reveals if I just change one Alias and then change the output the program works or doesn't.

    ChargerMain var PORTA.6 'Charger Mains Relay Out (OWOUT Works)
    low ChargerMain ...
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    OWOUT Glitch

    I'm using a PIC18F2680 at 32mhz

    I'm struggling with communicating with a DS18B20 sensor.

    I plugged my Saleae Logic analyser into the system and can see there is a glitch in the OWOUT $33 rom...
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    Re: PIC18F25Q43 serial combiner - possible?

    Hi. I can't find that documented anywhere on the ME site? Do you have a link?
  6. Re: Code for double width characters on any HD44780 compatible display, need EEPROM i

    A cold LCD can't update smoothly at 25fps in fact 5fps would be a challenge.

    Can you store the static LCD data in the PIC program flash memory using EXT instead of the eeprom.
    ...
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    Re: Nextion LCDs... How to comunicate ???

    Hi mpgmike.

    Do you have any comments about adapting your example code from the magazine article for a PIC18LF26K80 at 64mhz?

    Not sure if I was allowed to post it here? But it is downloadable...
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    Re: Nextion LCDs... How to comunicate ???

    Could someone please confirm exactly which issues these articles are in so I can buy them.

    Thanks
  9. Dual PIC18F SPI Data Exchange Methodology.

    I have two 8mhz hardware spi Master/Slave connected 26FK80 pics running at 64mhz cpu speed. All good.
    I am currently using SS Mode for the SPI.

    The PIC's both receive and transmit CAN packet...
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    Re: Bumpless Transfer PIC18F

    We can ignore the incoming signal during the period it is being replaced/overridden,
    but as soon as the manual intervention is finished the system needs to gently return to what the incoming signal...
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    Bumpless Transfer PIC18F

    I have a pic 18F project which has incoming data every 10ms in a word.

    The top nibble of the word high byte is flags, either %1111 or 0000 (we can ignore/mask them out)

    The lower 12 bits is a...
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    Re: Challenge & Response

    Are there any optimisations I have missed in the final code in my prev post?
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    Re: Challenge & Response

    I think I have this cracked now thanks to generous help on this and other forums.

    In the end I did not need the large lookup table as it was always using the same table entry.

    So my code...
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    Re: Challenge & Response

    I agree that does look like a problem, thanks for the heads up.
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    Re: Challenge & Response

    I've have this so far, but it's not right yet.
    Gives same incorrect answer with different seeds.
    Any obvious gaffes?

    PIC18F2680




    'Long Variables for signed Key Calculation
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    Re: Challenge & Response

    Thanks for the response.
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    Re: Challenge & Response

    I found a C++ solution to this calculation but I need to translate it into PbPro.

    The actual seed/key is 3 byte not two as I first thought.

    Happy to pay for some help to do this as I know...
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    Challenge & Response

    Seasons Greetings to all.

    If you get bored with relatives and feasting today perhaps you might cast your eye over the below.

    I have an electronic gadget that has a challenge response going on....
  19. Re: Current sensor output modification. PIC or opamp or something else?

    An example schematic of your idea would be kind Pedja.

    Thanks for responding.

    I basically have this so far.

    A potential divider activated by the MOSFET turning on and an non inverting...
  20. Re: Current sensor output modification. PIC or opamp or something else?

    Thanks for that.

    Alain. When you say 'If conversion' do you mean using a PIC?
    I didn't think that would be quick enough

    Or some sort of analog circuit like the TL431
  21. Current sensor output modification. PIC or opamp or something else?

    I have a hall effect current sensor with a 0-5V output. Zero current flow is 2.5V out.
    It is monitoring a 20khz motor drive signal.

    I want to pass thru signals from 0-2.5V unmolested but want to...
  22. Re: How is this data being formed from the values given?

    Thanks I think I have it now..
  23. Re: How is this data being formed from the values given?

    Sorry I'm still a bit stuck.

    Looking at this again lets assume my voltage data is being encoded into a 3 digit hex humber. (12 bits)? or is it a raw 10 bit non justified ADC result I am seeing? ...
  24. Re: How is this data being formed from the values given?

    Thanks again for the ideas. Alain what makes yours special/sneaky?

    I note that in my original table the 3rd character of the hex words 100V = $2C30 (3) in this case is never a letter...
  25. Re: How is this data being formed from the values given?

    Thanks for that very interesting..
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