#ifndef __PT1000_H__ #define __PT1000_H__ /* 采样值转电压:0.000050354004 16bit 满篇3.3V 分压偏置 0.436170213 分压电阻为20k,8.2k 偏置电压为 电流值:0.0005 限流电阻1500 (V*0.000050354004/10 + 0.436170213)/0.0005 简化为: =V*3.3/65536/10/0.0005 + 0.436170213/0.0005 =V*0.01007080078125+872.34 */ #define ADCTORESISTANCE 0.01007080078125 #define BASERESISTANCE 872.34 float getTemp(float R); float getPB7_Temp(float R); float Get_Temp_NCP18XH103(float Rt); float Get_Temp_K_Thermocouple(float Vt); unsigned char crc8_check(unsigned char* data, unsigned char len); #endif