4.1 MCC Generated Code

  1. Create a new MPLAB X IDE project for PIC18F47Q10.
  2. Open MCC from the toolbar (for details on how to install the MCC plug-in, see References).
  3. Go to Project Resources → System → System Module and do the following configurations:
    • Oscillator Select: HFINTOSC
    • HF Internal Clock: Select 1_MHz
    • Clock Divider: 1
    • In the Watchdog Timer Enable field in WWDT tab, ensure ‘WDT Disabled’ is selected
    • In the Programming tab, ensure Low-voltage Programming Enable is checked
  4. Open the Pin Manager → Grid View window, select UQFN40 in the MCU package field, and make the following pin configurations:
    Figure 4-1. Pin Mapping
    • Go to Project Resources → System → Pin Module → Easy Setup and do the following configurations:
      • RA0 Custom Name: RA0
      • RA0 WPU: checked
      • RA0 IOC: negative
      • RE0 Custom Name: LED0
      • RE0 Output: checked
    • In the Project Resources window, press the Generate button so that the MCC can generate the code capable of configuring the microcontroller as specified.
    • In the main.c file generated by MCC, add the following code:
      • Enable the global interrupts
      • Add the IOC0 interrupt function
      • Set the IOC0 interrupt handler initializer
      • Put the device in Sleep
      
#define DELAY_MS 100

static void IOC0_ISR()
{
    if(IOCAFbits.IOCAF0 == 1)
    {
        ;
    }
}

void main(void)
{
    // Initialize the device
    SYSTEM_Initialize();
	
    // Enable the Global Interrupts
    INTERRUPT_GlobalInterruptEnable();

    // Disable the Global Interrupts
    //INTERRUPT_GlobalInterruptDisable();

    // Enable the Peripheral Interrupts
    //INTERRUPT_PeripheralInterruptEnable();

    // Disable the Peripheral Interrupts
    //INTERRUPT_PeripheralInterruptDisable();
    
    IOCAF0_SetInterruptHandler(IOC0_ISR);
    
    while (1)
    {
        LED0_SetLow();
        __delay_ms(DELAY_MS);
        LED0_SetHigh();
        
        SLEEP();
    }
}