Untitled

/*---------------------------------------------------------------------------------------------------------*/
/*                                                                                                         */
/* SPDX-License-Identifier: Apache-2.0                                                                     */
/* Copyright(c) 2020 Nuvoton Technology Corp. All rights reserved.                                         */
/*                                                                                                         */
/*---------------------------------------------------------------------------------------------------------*/
#include "ms51_16k.h"
//#include "stdint.h"
unsigned char xdata ADCdataAINH, ADCdataAINL;

unsigned int ADCdata = 0;

/************************************************************************************************************/
/* FUNCTION_PURPOSE: Main Loop                                                                              */
/************************************************************************************************************/
//void update_PWM(unsigned int value)
//{
//    PWMCON0H = (value >> 8) & 0xFF;  // Set duty cycle high byte
//    PWMCON0L = value & 0xFF;         // Set duty cycle low byte
//    set_PWMCON0_LOAD;               // Load the new PWM duty cycle
//}

//unsigned int pwm_value = 0;

int16_t pwm_value = 0;
#define MAX_PWM_VALUE 65535
#define MIN_PWM_VALUE 0

void update_PWM(int16_t value)
{
    PWM0H = (value >> 8) & 0xFF;  // Update duty cycle high byte
    PWM0L = value & 0xFF;         // Update duty cycle low byte
    set_PWMCON0_LOAD;               // Load the new PWM duty cycle
}


void main (void) 
{
/* Initial UART0 for printf */
    //unsigned char temp;
		MODIFY_HIRC(HIRC_24);                         // Set HIRC to 24 MHz
		P06_QUASI_MODE;
    UART_Open(24000000,UART0_Timer3,115200);
    ENABLE_UART0_PRINTF;                              // Important! use prinft function must set TI=1;
  
    ENABLE_ADC_AIN4;            

  /* ADC Low speed initial*/  
    ADCCON1|=0X30;            /* clock divider */
    ADCCON2|=0X0E;            /* AQT time */

    P12_PUSHPULL_MODE;
	
		P12_QUASI_MODE;
		PWM0_P12_OUTPUT_ENABLE;
		
		PWM_IMDEPENDENT_MODE;
    PWM_CLOCK_DIV_8;
    PWMPH = 0x30;
    PWMPL = 0x0f;
/**********************************************************************
  PWM frequency = Fpwm/((PWMPH,PWMPL) + 1) <Fpwm = Fsys/PWM_CLOCK_DIV> 
                = (16MHz/8)/(0x7CF + 1)
                = 1KHz (1ms)
***********************************************************************/
	
		P15_INPUT_MODE;                               // Set P1.5 as input for button
		P15_QUASI_MODE;  // Set P1.5 to quasi-bidirectional mode (enables internal pull-up automatically)
    P15 = 1;                                      // Ensure P1.5 is pulled high (assuming active-low button)
	
		P14_INPUT_MODE;                               // Set P1.5 as input for button
		P14_QUASI_MODE;  // Set P1.5 to quasi-bidirectional mode (enables internal pull-up automatically)
    P14 = 1;                                      // Ensure P1.5 is pulled high (assuming active-low button)
 
    while(1)
    {
      Timer2_Delay(16000000,128,100,1000);;
      clr_ADCCON0_ADCF;
      set_ADCCON0_ADCS;                  // ADC start trig signal
      while(ADCF == 0);
     // ADCdata = ADCRH;
			ADCdata = (ADCRH << 4) | (ADCRL & 0x0F);  // Combine high and low bytes to get full 10-bit result
		//	printf("ADC Counts: %4d\n", ADCdata);  // Print the ADC result
			// Check if P14 (increment) button is pressed
        if (P14 == 0)
        {
            if (pwm_value < MAX_PWM_VALUE)
            {
                pwm_value = pwm_value + 500;  // Increment PWM value
                update_PWM(pwm_value);
						//	printf("PWM Counts: %4d\n", pwm_value);
							printf("PWM Counts: %u\n", pwm_value);
            }
          //  while (P14 == 0);  // Wait for button release (simple debounce)
        }

        // Check if P15 (decrement) button is pressed
        if (P15 == 0)
        {
            if (pwm_value > MIN_PWM_VALUE)
            {
                pwm_value = pwm_value - 500;;  // Decrement PWM value
                update_PWM(pwm_value);
						//	printf("PWM Counts: %4d\n", pwm_value);
							printf("PWM Counts: %u\n", pwm_value);
            }
           // while (P15 == 0);  // Wait for button release (simple debounce)
        }
      //P12 ^= 1;
}
}