HT66F0021 with ADC -- Holtek contoller

#include "HT66F0021.h"

void Delay_ms(unsigned int count);
void McuConfig(void);
void GpioConfig(void);
void AdcConfig(void);
void AdcMeasure(void);

unsigned int AdcResult = 0;

void main()
{
    McuConfig();

    while (1)
    {
        AdcMeasure(); // Update AdcResult with the current ADC value

        if (AdcResult > 512) // Compare ADC result
        {
            _pa5 = 1; // Set PA5 high
        }
        else
        {
            _pa5 = 0; // Set PA5 low
        }

        Delay_ms(100); // Delay for stability
    }
}

void Delay_ms(unsigned int count)
{
    char i, j;
    for (j = 0; j < count; j++)
    {
        i = 100;
        while (i)
        {
            _clrwdt(); // Clear watchdog timer
            _nop(); // No operation (multiple for timing adjustment)
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            _nop();
            i--;
        }
    }
}

void McuConfig(void)
{
    GpioConfig();
    AdcConfig();
}

void GpioConfig(void)
{
    _pac = 0b10011011; // Configure port A as needed
    _pa5 = 0; // Set PA5 to low initially
    _pac5 = 0; // Configure PA5 as output
}

void AdcConfig(void)
{
    _sadol = 0; // Clear ADC data low byte
    _sadoh = 0; // Clear ADC data high byte
  
    _sadc0 = 0b00010000; // Configure ADC settings (e.g., clock, mode)
    _sadc1 = 0b00000100; // Enable ADC and set input channel
    _pasr = 0b01100000;  // Select ADC channel (e.g., PA5 as input)
}

void AdcMeasure(void)
{
    _start = 1; // Start ADC conversion
    while (_adbz); // Wait for ADC conversion to complete
    _start = 0; // Reset the start bit

    // Read ADC result
    AdcResult = (_sadoh << 8) | _sadol; // Combine high and low bytes
  
    //AdcResult = (_sadoh << 2) | (_sadol >> 6); // Combine high and low bytes

}