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Type: Posts; User: yvesmazzon

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  1. Re: How many digit after the comma a negative float variable can take

    Thank you all

    Yves
  2. How many digit after the comma a negative float variable can take

    Hello Picsters,

    How many digit after the comma a negative float variable can take or what precision?

    Regards,

    Yves
  3. Re: Is PortB weak pull-out good enough for for units that requires pullout?

    Thank George,

    It is what I thought too. I never found any data of the equivalent ohms the weak pull-up is, I suppose I could find out by using incremental resistors and measure the voltage drop...
  4. Is PortB weak pull-out good enough for for units that requires pullout?

    Compliment of the season to all Picsters

    Is the PIC's week pull-out is good enough for unit like I2C memories or AD converter like the MCP3421 chip and others one wire like temperature converter...
  5. Some translation mathematical difficulties

    Hello all,
    I am having difficulties to translate an excel trendline formula (polynomial equation) into proton basic language. I could get it to work on excel but cant translate it in Proton basic. ...
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    Colouring code

    Hi Picsters,

    Is there is anyways to change font colour of the code. Sometimes when the code get pretty heavy it would be nice to put a colour on the section that have been modified so it will be...
  7. Thread: mcp3421

    by yvesmazzon
    Replies
    12
    Views
    5,528

    Re: mcp3421

    Hello Ryan,
    I have successfully implemented your code and it is working well. Your code you published is for continuous mode which set in that line below:

    MCP342X_CFG = MCP342X_GAIN_X8 +...
  8. [SOLVED !] Re: Problem to enabling all PortB set as pull-ups on the 18F25k22

    Many thanks Les,

    Regards,

    Yves
  9. [SOLVED !] Problem to enabling all PortB set as pull-ups on the 18F25k22

    Hello Picsters,

    I'm battling to enable the weak internal pull-up all the port B on the 18F25k22 chip: so far I tried this below but it doesn't seem to work properly:

    Input PORTB
    INTCON2.7 =...
  10. Re: DS18S20 strange beaviour at lower speed

    Thanks George, The actual Xtal is 16Mhz. Here below my setup:

    $ifndef _AMICUS18_INC
    $define _AMICUS18_INC
    '
    ' Header file for use with the Amicus18 board
    '
    Device = 18F25K22
    Declare...
  11. DS18S20 strange beaviour at lower speed

    Hello Picsters,
    I was testing the excellent code written by Less to measure temperature using the DS18S20 publish in Viky at this address:...
  12. Thread: mcp3421

    by yvesmazzon
    Replies
    12
    Views
    5,528

    Re: mcp3421

    Excellent code Ryan.
    Thank you very much.

    Regards,

    Yves
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    Re: Bootloader for the 18F26K22

    Many thanks Alberto

    Yves
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    Re: Bootloader for the 18F26K22

    Hello Alberto,
    Thanks for your work concerning boot loaders and the ample pdf explanations. These seem a pretty complicate subject for me and I don't think I really want to go into the depth of it....
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    Bootloader for the 18F26K22

    Hello all, Where can I find a bootloader for the 18F26K22. Thank you. Regards, Yves
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    11

    Re: HPWM low frquency limitation

    Thanks Stephen,
    Yes I did but the problem is I need to modulate the pulse width in regular steps. Because I don't have to run the system fast I found I can achieve those low frequencies by clocking...
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    Re: HPWM low frquency limitation

    Thanks Simon,
    I will try that. Just for curiosity why Hpwm has this low minimums?
    Regards,
    Yves
  18. Replies
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    HPWM low frquency limitation

    I would like to have a low frequency hpwm at frequency starting from 20Hz with the 18F25k22 running at 4Mz. Unfortunately the minimum frequency is 145Hz at 4Mz oscilator. I know I could use High Pin...
  19. Thread: Read HX711

    by yvesmazzon
    Replies
    9
    Views
    7,682

    Re: Read HX711

    Hi Amod,being a 24 bit values which is a very large number you will notice quite lot variations on the low digits, but when you convert it into grams or kg or what ever unit you are using these...
  20. Re: Prgramming 18FXXXXX chip with USB on board

    What I had In mind Is to use the native USB port that some pics have to program and debug In same time.
  21. Prgramming 18FXXXXX chip with USB on board

    Hello all,

    Is it possible to program a 18FXXXXX that has a UBS capability on board using its own UBS. If so any information links will be most appreciated.

    Regards,

    Yves
  22. Thread: Read HX711

    by yvesmazzon
    Replies
    9
    Views
    7,682

    Re: Read HX711

    Hello Basparky,

    Sorry of my ignorance but what is the purpose of the "Hx711Cnt = Hx711Cnt^0x800000" ?

    regards,

    Yves
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    Re: What is the fuss about arduino

    George,
    I agree Arduino has brought a lot of sometime useful breakout board and very cheap. I you go have a look at Banggood site at least once you will be bombarded with their products on your...
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    What is the fuss about arduino

    I was wondering what is the fuss about Arduino? It seems very popular you see it where ever you look for prototyping with it C language which a bit gibberish for me. Frankly a for ever beginner like...
  25. Re: Samsung LCD KS0108 display difficulties

    Thank you Bob,
    You were right about the connection errors. but was not exactly right on the display. eventually I discovered the " Declare GLCD_External_Print = Pprint" declaration on an example...
  26. Samsung LCD KS0108 display difficulties

    Hello members,

    It is now 3 days I'm trying to make sense on how to drive a Samsung KS0108 128 by 64 LCD using a simple program. I went through the manual, looked at some examples but really now...
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    Best GLCD serial displays

    Hello Members,

    I want to use a GLCD display on my project. What you suggest the best serial displays which is well supported by Proton/Amicus basic with about 160 by 160 pixels resolution with...
  28. Print using a SPI I/O expander to a Alpha numeric display

    Hello members,
    I like to connect a 2 by16 alpha LCD to the MCP23S17 expander. I realised that I have to use Shout to send the bytes to the expander in a subroutine. Where I'm not sure is how I...
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    Re: Member map ?????

    Oh OK Les,

    Regards,

    Yves
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    Member map ?????

    Hi all,

    By curiosity I looked at the member map. In my surprise I see myself in Zimbabwe and some other member in west Africa Lagos, 1 in England and none in US and south America. Is it possible?...
  31. [SOLVED !] Re: declaring crystall values when using chip pll

    http://www.protonbasic.co.uk/content.php/3960-Crystals-PLL-s-Proton
  32. Using RCin to make a touch button (Eurika)

    Hello members,

    I like to share a test I carried out using RCin to detect the change in a homemade capacitor. I use 2 tin foil separated by a thin layer of plastic to make a capacitor which I...
  33. [SOLVED !] Re: Taking advantage of the internal voltage references of the 18F25k22 chip on ADC c

    Thanks John,

    Advice taken.

    Regards,

    Yves
  34. [SOLVED !] Re: Taking advantage of the internal voltage references of the 18F25k22 chip on ADC c

    Hello Alberto,

    Many thanks for your correction, it makes good logical sense. Now I understand better the macro and will test it tonight. I suppose I have to modify the register to ...
  35. [SOLVED !] Re: Taking advantage of the internal voltage references of the 18F25k22 chip on ADC c

    Thank you Alberto,

    When I put the micro "OpenADC(ADC_FOSC_32 & ADC_RIGHT_JUST & ADC_20_TAD, ADC_CH0, ADC_REF_VDD_FVREF, ADC_17ANA)" and compile I get an error like "ADC_CH0, ADC_REF_VDD_FVREF" not...
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