FAQ

This page will attempt to answer some frequent questions and provide information about common issues.

  1. I am getting the following linker error: “Error – could not find file ‘c018i.o’.”

Q:I am getting the following error: “Error – could not find file ‘c018i.o’.”
A: Make sure you correctly set up your search paths as shown in Tutorial 4.

There are currently 12 responses to “FAQ”

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  1. 1 On August 25th, 2010, mayur jani said:

    hi im programing a ubw pic18f2553 using mplab but i relly dont know where to start im trying to get a pwm out and im ung a 24mhz clock can you please help thanks

  2. 2 On September 10th, 2010, MANI Mohamed Anis said:

    Thanks for this tutorials what about a RS232 tutorial using pic18f4550 ?

  3. 3 On September 27th, 2010, devendra said:

    what is mean F in PIC18Fxx series

  4. 4 On November 18th, 2010, Daniel Lamothe said:

    I’m looking for good microcontroller. I ever worked on 16F family. Im checking the
    data sheet of 18F family. In the section of Instructions set. I understood the set of Instruction extended. But I dont understand why the instruction CPFSLT ist not like the others. When the extended instruction is enabled, the “”A”” is’t 0 we should be able to operate with FSR2 with OFFSET until 95. Not with CPFSLT. I hope that its just one mistake of data sheet.

    Thanks

  5. 5 On March 8th, 2011, Gonçalo said:

    Hi Mr.,

    I’m a electrical engeneering student and at moment I’m in finishing my Master’s degree, it consist controlling on two RC Digital Servo (FUTUBA S3151) for actuate a 2D plataform (yaw and pitch).
    I never worked with PICs and it’s not the main subject of this project, therefore, your help is very gratefull for me.
    This problem consist in two analog input (tension) and I want convert them separately in two PWM signals, one for each input signal, after this, which will be read by two servos.
    The problem issues are:
    – two signal analog input, between 1,2V and 3,5V;
    – PIC18f4620;
    – two differents output signal for two servos;
    – Follow in attachment the servo specification.
    I am willing to pay for this “service” and put your name in my dissertation of master degree.
    Can you help me? It’s urgently!
    If yes, send to me the .h and .c files, please. Thanks.
    Best regards.

  6. 6 On May 23rd, 2011, Jim said:

    Hello,
    Should i buy the pickit 2 or the pickit 3?
    Cheers
    Jim

  7. 7 On August 13th, 2011, Patrick said:

    Hi,
    Thanks for providing these tutorials. I hope your still checking the mails from this site as I have a question regarding the oscillator. I’m trying to figure out how to set the internal oscillators clock pulse (especially in assembler). I’m using PIC18F45K22. I have already checked the datasheet, the include file and google but it didn’t help me.

    Thanks for any help, kind regards
    patrick

  8. 8 On February 26th, 2012, Fred Mah said:

    Dear all, the Microchip PWM information is becoming very hazy.
    At first read the steps seem quite clear, BUT.. the multiple functions that have to be located and set have increased enormously .

    Even worse the old PORTA,B,C setting up has also become quite obscure .
    Obscure in two senses.
    You have to put the PWM o/P and the dc filter analogue i/p on pins that can be used.
    The other sense is that migrating from a 16F PIC where we have working code is no longer straight forward as now there are more registers to set.

    Is there anyone out there capable a setting up an i/o sequence for PWM which is correct for 18F25k22 and similar which spells out
    recommended PWM out port pins
    Registers to be configured.

    Bye
    Fred

  9. 9 On March 16th, 2012, where to buy xbox said:

    video game xbox…

    There isn’t a absolute freedom. As soon as your girlfriend says, “I love you”, that’s her freedom. Although, will you permit her to say, “I love you” to every man….

  10. 10 On August 10th, 2012, Daniel said:

    Hi, I have a question…
    for my work, i program on PIC18f67j50 in C Language and I do not know how to define the input pins and the output pin… :s
    can you help me ? Please

  11. 11 On March 8th, 2013, Jack said:

    Hi, I’m working on the pic18f4550 in my final year project. your website is quite useful. Can you email me a example code of LCD using C18 compiler? I will really appreciate it if you do.

  12. 12 On July 8th, 2013, Fabian said:

    Hello, Thank you for examples,
    may you put example for 18F2550 usb with C XC8 ?
    for example add usb to Tutorial 5 – A/D Conversion in C
    another time THANK YOU
    Fabian

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