24e1.h

利用NTC电阻实现温度测试,带详细文档和C语言代码,测试温度误差在0.5度.

#include <reg24e1.h>

/*  S1-S4  
sbit S1       = P0^3;
sbit S2       = P0^0;
sbit S3       = P1^1;
sbit S4       = P1^0;
*/
//*  LED1-LED4  
//sbit LED1      = P0^7;
//sbit LED2      = P0^6;
//sbit LED3      = P0^5;
//sbit LED4      = P0^4;
sbit P_Rsta     = P0^4;	   //100K精密电阻
sbit P_Rntc     = P0^5;	   //100K热敏电阻				
sbit P_Ctest    = P0^3;	   //0.1uF电容
//*/
//RTC's time
#define TICK   10e-2                    // 1ms (1000Hz) tick
#define TRTC   20                   // 2s sleep time

typedef struct stRFConfig
{
    unsigned char n;
    unsigned char buf[15];
}RFConfig;

extern RFConfig tconf,rconf;
//struct Trdata TrBuffer; 
#define ADDR_INDEX  8   // Index to address bytes in RFConfig.buf 
#define ADDR_COUNT  4   // Number of address bytes


#define TNUM  14  //发送的数据字节数
#define RNUM  16  //接收的数据字节数
extern unsigned char TxBuf[TNUM];
extern unsigned char RxBuf[RNUM];
extern unsigned char TRCOUNT;
extern unsigned char  TIME;
void WriteRTC(unsigned int w);
unsigned char SpiReadWrite(unsigned char b);
void Transmitter(unsigned char *txbuf);
void Init_Receiver(void);
void Receiver(unsigned char *rxbuf);
void PutChar(char c);
//char GetChar(void);
void Delay100us(volatile unsigned int n);
void Delayms(volatile unsigned char n);