12c5a60s2采集电压串口发送显示
单片机源程序如下:
- #include "12c5a.h"
- #include "intrins.h"
- #include "stdio.h"
- #define uint unsigned int
- #define uchar unsigned char
- //sfr ADC_LOW2 = 0XBE;
- #define ADC_POWER 0X80
- #define ADC_FLAG 0X10
- #define ADC_START 0X08
- #define ADC_SPEEDLL 0X00
- #define ADC_SPEEDL 0X20
- #define ADC_SPEEDH 0X40
- #define ADC_SPEEDHH 0X60
- void delay(uint n)
- {
- uint x;
- while(n--)
- {
- x=5000;
- while(x--);
- }
- }
-
- unsigned int AD_get(unsigned char channel) //ad初始化
- {
- ADC_CONTR=0x88|channel;
- _nop_(); _nop_(); _nop_(); _nop_();
- while(!(ADC_CONTR&0x10));
- ADC_CONTR&=0xe7;
- return(ADC_RES*4+ADC_RESL);
- }
- float AD_work(unsigned char channel) //ad求平均值
- {
- float AD_val;
- unsigned char i;
- for(i=0;i<10;i++)
- AD_val+=AD_get(channel);
- AD_val/=10;
- AD_val=AD_get(channel);
- AD_val=AD_val*(5.0/1024);
- return AD_val;
- }
- void UART_init()
- {
- TMOD = 0x20; //T1工作模式2 8位自动重装
- TH1 = 0xfd;
- TL1 = 0xfd; //比特率9600
- TR1 = 1; //启动T1定时器
- SM0 = 0;
- SM1 = 1; //串口工作方式1 10位异步
- REN = 1; //串口允许接收
- EA = 1; //开总中断
- ES = 1; //串口中断打开
- }
- /*********************************************************
- 发送数据函数
- *********************************************************/
- void senddata(float dat)
- {
- ES=0;
- TI=1;
- printf("%f \n",dat);
- while(!TI);
- TI = 0;
- ES=1;
- }
- void main()
- {
- UART_init();
- while(1)
- {
- senddata(AD_work(0));
- delay(100);
- }
- }
所有资料51hei提供下载:
12c5a60s2 AD电压采集.rar
(35.37 KB, 下载次数: 61)
|
