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- #include <msp430x14x.h>
- #include "Keypad.h"
- #include "cry1602.h"
- #include "x9c103.h"
- #define uchar unsigned char
- #define uint unsigned int
- #define Num_of_Results 128
- extern uchar num[];
- uchar tishi[] = {"Vout:"};
- static uint results[Num_of_Results]; //保存ADC转换结果的数组 // is not used for anything.
- void Trans_val(uint Hex_Val);
- void keytest();
- /************************主函数****************************/
- void main(void)
- {
- WDTCTL = WDTPW+WDTHOLD; //关闭看门狗
- LcdReset(); //复位1602液晶
- DispNChar(0,0,5,tishi);
- DispNChar(0,1,4,"set:"); //显示提示信息
- Init_Keypad(); //初始化键盘端口
- P1DIR|=0X07;
- x9c_init();
- P6SEL |= 0x01; // 使能ADC通道
- ADC12CTL0 = ADC12ON+SHT1_8+MSC; // 打开ADC,设置采样时间
- ADC12CTL1 = SHP+CONSEQ_2; // 使用采样定时器
- ADC12IE = 0x01; // 使能ADC中断
- ADC12CTL0 |= ENC; // 使能转换
- ADC12CTL0 |= ADC12SC; // 开始转换
- _EINT();
- LPM0;
- }
- /*******************************************
- 函数名称:ADC12ISR
- 功 能:ADC中断服务函数,在这里用多次平均的
- 计算P6.0口的模拟电压数值
- 参 数:无
- 返回值 :无
- ********************************************/
- #pragma vector=ADC12_VECTOR
- __interrupt void ADC12ISR (void)
- {
- static uint index = 0;
- results[index++] = ADC12MEM0; // Move results
- if(index == Num_of_Results)
- {
- uchar i;
- unsigned long sum = 0;
- index = 0;
- for(i = 0; i < Num_of_Results; i++)
- {
- sum += results[i];
- }
- sum >>= 7; //除以512
- Trans_val(sum);
- }
- keytest();
- }
- /*******************************************
- 函数名称:Trans_val
- 功 能:将16进制ADC转换数据变换成三位10进制
- 真实的模拟电压数据,并在液晶上显示
- 参 数:Hex_Val--16进制数据
- n--变换时的分母等于2的n次方
- 返回值 :无
- ********************************************/
- void Trans_val(uint Hex_Val)
- {
- unsigned long caltmp;
- uint Curr_Volt;
- uchar t1,i;
- uchar ptr[4];
- caltmp = Hex_Val;
- caltmp = (caltmp << 5) + Hex_Val; //caltmp = Hex_Val * 33
- caltmp = (caltmp << 3) + (caltmp << 1); //caltmp = caltmp * 10
- caltmp = (caltmp << 1) + caltmp;
- Curr_Volt = caltmp >> 11; //Curr_Volt = caltmp / 2^n
- Curr_Volt+=60;
- ptr[0] = (Curr_Volt-(Curr_Volt/1000)*1000) / 100; //Hex->Dec变换
- t1 = Curr_Volt -(Curr_Volt/1000)*1000- (ptr[0] * 100);
- ptr[2] = t1 / 10;
- ptr[3] = t1 - (ptr[2] * 10);
- ptr[1] = -2; //shuzi表中第10位对应符号"."
- //在液晶上显示变换后的结果
- Disp1Char(5,0,'1');
- for(i = 0;i < 4;i++)
- Disp1Char((6 + i),0,ptr[i]+48);
- }
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