adc.c

来自「80c51F020的开发程序 包括ADC DDS DAC」· C语言 代码 · 共 121 行

/*------------------------------------------------------------
	File Name: 		timer.c
	Auther:			Samuel
	Revision:		R1
	History:		R1			Jul.05, 2007		Creation
------------------------------------------------------------*/
#include "adc.h"

void ADC0_Init(void)
{
	REF0CN=0x07;
	ADC0CF=0x40;
	ADC0CN=0xC4;
	EIE2=Reg_Field_Set(EIE2,BIT1);	//允许ADC0中断
	//EIE1=Reg_Field_Set(EIE1,BIT2);	//允许ADC0窗口中断
}

void ADC0_Channel_Select(ADC_Channel_t ADC_Channel)
{
	switch(ADC_Channel)
	{
		case CH0:
			AMX0SL=0x00;
			break;

		case CH1:
			AMX0SL=0x01;
			break;

		case CH2:
			AMX0SL=0x02;
			break;

		case CH3:
			AMX0SL=0x03;
			break;

		case CH4:
			AMX0SL=0x04;
			break;

		case CH5:
			AMX0SL=0x05;
			break;

		case CH6:
			AMX0SL=0x06;
			break;

		case CH7:
			AMX0SL=0x07;
			break;

		case T_SENSER:
			AMX0SL=0x08;
			break;
		
		default:
			
			break;
	}
}


void ADC1_Init(void)
{
	P1MDIN=0x00;	/* P1口设为模拟输入 */
	P1MDOUT=0x00;	/* P1设为漏极开路 */
	P1=0xFF;		/* P1置高 */


	REF0CN=0x07;
	ADC1CF=0x1B;	/* SAR=5.529600 MHz, 460800 Hz converting! */
	ADC1CN=0x82;
	EIE2=Reg_Field_Set(EIE2,BIT3);	//允许ADC1中断

}

void ADC1_Channel_Select(ADC_Channel_t ADC_Channel)
{
	switch(ADC_Channel)
	{
		case CH0:
			AMX1SL=0x00;
			break;

		case CH1:
			AMX1SL=0x01;
			break;

		case CH2:
			AMX1SL=0x02;
			break;

		case CH3:
			AMX1SL=0x03;
			break;

		case CH4:
			AMX1SL=0x04;
			break;

		case CH5:
			AMX1SL=0x05;
			break;

		case CH6:
			AMX1SL=0x06;
			break;

		case CH7:
			AMX1SL=0x07;
			break;
		
		default:
			
			break;
	}
}