Electronic – Configuration in MPLABX compared to MikroC Pro

microchipmplabxpic

I need to modify a C code of an PIC18F4550. I want to use the MPLAB X IDE to do the job because I'm more familiar with it. However, the code that I need to modify is accompanied by an introduction tutorial of programming using the MikroC-Pro. In the tutorial, when it was explaining how to creat a project, it edited the project. So, I noticed a difference between the two IDEs. The MikroC asks for a lot more information like frequency, Oscilator etc… I didn't find how to make a similar configuration in the MPLAB X's project.

I would like to know, why MPLAB X did not ask this information ? Will I need to add this information in my code, I mean , I will need to type it in the C file using MPLABX ?

Below is the print-screen of the information availabe to edit the project in the MikroC.

Best Answer

In Mplab X install a plugin called "MPLAB Code Configurator" AKA MCC. It allows to configure clock, remappable pins, peripherals, etc. It also generates IO routines for the peripherals with errata workarounds already implemented :-).

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Programming dsPIC30F4011/13 on board dsPICDEM 2 with MPLAB ICD 2

You have to set the configuration bits. Near the end of the device's header file (line 5880 for dsPIC30F4013) is a listing of all the device's configuration bits that need to be set or cleared to ensure proper operation of the device, as well as code comments for how to do it.

For example:

_FOSC( XT & CSW_FSCM_OFF )  // Configure for external XT crystal oscillator, turn off clock switching and monitoring

The oscillator and watchdog timer configurations are very important.

EDIT: In your edited post you tried using the phase-locked loop option for the oscillator. You have to add the following code in your main routine in order to use an external oscillator + PLL:

/*
 *  Set up the PLL for full 60 MIPS operation (dsPIC33EP512MU810)
 *
 *  Fcy = Fin*K/2 --> 60MHz = 8MHz*K/2 --> K = 15
 *  K = M/(N2*N1) --> 15 = M/(N2*N1)   --> N2 = 2, N1 = 2, M = 60
 *  Fcy = 8MHz*15/2 = 60MHz
 *
 *  p. 164-171 datasheet
 */
void configPLL()
{
    PLLFBDbits.PLLDIV = 58; // M = 60
    CLKDIVbits.PLLPOST = 0; // N1 = 2
    CLKDIVbits.PLLPRE = 0;  // N2 = 2
    OSCTUN = 0;
    // Writing to the OSCCON register requires a special unlock sequence
    // Using a compiler built-in write instruction to handle this
    __builtin_write_OSCCONH(0x03);  // Select primary oscillator with PLL   
    __builtin_write_OSCCONL(0x01);  // Request oscillator switch
    while (OSCCONbits.COSC != 0x3); // Wait for the PLL to lock
}

PIC16F628A 16×4 LCD problem while using MPLABX

Sorry for the delay, but the problem was solved, the errors were in the functions of delay, and some were wrong command being sent to the display, thanks.

Best Answer

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Programming dsPIC30F4011/13 on board dsPICDEM 2 with MPLAB ICD 2

PIC16F628A 16×4 LCD problem while using MPLABX

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