Diff: TMP175.h

Revision:

0:e177f6671b88

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TMP175.h	Wed Feb 02 23:55:19 2011 +0000
@@ -0,0 +1,232 @@
+/*
+   \file TMP175.h
+   \version: 1.0
+   
+   \brief Este fichero contiene funciones para control de TMP175/75 
+   
+   \web www.micros-designs.com.ar
+   \date 02/02/11
+   
+ *- Version Log --------------------------------------------------------------*
+ *   Fecha       Autor                Comentarios                             *
+ *----------------------------------------------------------------------------*
+ * 02/02/11      Suky        Original                                         *
+ *----------------------------------------------------------------------------*/ 
+///////////////////////////////////////////////////////////////////////////
+////                                                                   ////
+////                                                                   ////
+////        (C) Copyright 2011 www.micros-designs.com.ar               ////
+//// Este código puede ser usado, modificado y distribuido libremente  ////
+//// sin eliminar esta cabecera y  sin garantía de ningún tipo.        ////
+////                                                                   ////
+////                                                                   ////
+///////////////////////////////////////////////////////////////////////////
+#include "mbed.h"
+
+
+class TMP175{
+    public:
+        #define SHUTDOWN_MODE_OFF  0x00
+        #define SHUTDOWN_MODE_ON   0x01
+        #define COMPARATOR_MODE    0x00
+        #define INTERRUPT_MODE     0x02
+        #define POLARITY_0         0x00
+        #define POLARITY_1         0x04
+        #define FAULT_QUEUE_1      0x00
+        #define FAULT_QUEUE_2      0x08
+        #define FAULT_QUEUE_4      0x10
+        #define FAULT_QUEUE_6      0x18
+        #define RESOLUTION_9       0x00
+        #define RESOLUTION_10      0x20
+        #define RESOLUTION_11      0x40
+        #define RESOLUTION_12      0x60
+        #define ONE_SHOT           0x80
+        TMP175(PinName PIN_SDA, PinName PIN_SCL, PinName PIN_ALERT=NC);
+        void vSetConfigurationTMP175(unsigned char Config,unsigned char Address);
+        void vStartSingleConversionTMP175(void);
+        float fReadTemperatureTMP175(void);
+        void vSetTemperatureLowTMP175(float Value);
+        void vSetTemperatureHighTMP175(float Value);
+        float fReadTemperatureHighTMP175(void);
+        float fReadTemperatureLowTMP175(void);    
+        bool bReadPinAlertTMP175(void);
+        #ifdef MBED_OPERATORS
+        operator float();
+        #endif
+    protected:
+        unsigned char _Address, Rotar;
+        float Factor;
+        unsigned short Mascara;
+        I2C Bus;
+        DigitalIn _PIN_ALERT;    
+};
+
+TMP175::TMP175(PinName PIN_SDA, PinName PIN_SCL, PinName PIN_ALERT)
+    :Bus(PIN_SDA,PIN_SCL),_PIN_ALERT(PIN_ALERT){    
+}
+
+void TMP175::vSetConfigurationTMP175(unsigned char Config,unsigned char Address){
+   
+   _Address=Address<<1;
+   switch(Config&0x60){
+      case 0x00:
+         Factor=0.5;
+         Mascara=0x00FF;
+         Rotar=3;
+      break;
+      case 0x20:
+         Factor=0.25;
+         Mascara=0x01FF;
+         Rotar=2;
+      break;
+      case 0x40:
+         Factor=0.125;
+         Mascara=0x03FF;
+         Rotar=1;
+      break;
+      case 0x60:
+         Factor=0.0625;
+         Mascara=0x07FF;
+         Rotar=0;
+      break;
+   }
+
+   Bus.start();
+   Bus.write(_Address&0xFE);
+   Bus.write(0x01);
+   Bus.write(Config);
+   Bus.stop();  
+}
+
+void TMP175::vSetTemperatureLowTMP175(float Value){
+   unsigned short Temp;
+   
+   if(Value>=0.0){
+      Temp=Value/0.0625;
+   }else{
+      Temp=(Value+128.0)/0.0625;
+      Temp!=0x0800;
+   }
+   Temp<<=4;
+
+   Bus.start();
+   Bus.write(_Address&0xFE);
+   Bus.write(0x02);
+   Bus.write(*((unsigned char *)&Temp+1));
+   Bus.write(*((unsigned char *)&Temp));
+   Bus.stop();
+}
+
+float TMP175::fReadTemperatureLowTMP175(void){
+   unsigned short Temp;
+   float Cal;
+   
+   Bus.start();
+   Bus.write(_Address&0xFE);
+   Bus.write(0x02);
+   Bus.start();
+   Bus.write(_Address | 0x01);
+   *((unsigned char *)&Temp+1)=Bus.read(1);
+   *((unsigned char *)&Temp)=Bus.read(0);
+   Bus.stop();   
+   
+   Temp>>=4;
+   Cal=Temp*0.0625;
+   if((0x0800&Temp)!=0x0000){
+      Cal-=128.0;
+   }
+   
+   return(Cal);
+}
+
+void TMP175::vSetTemperatureHighTMP175(float Value){
+   unsigned short Temp;
+   
+   if(Value>=0.0){
+      Temp=Value/0.0625;
+   }else{
+      Temp=(Value+128.0)/0.0625;
+      Temp!=0x0800;
+   }
+   Temp<<=4;
+   
+   Bus.start();
+   Bus.write(_Address&0xFE);
+   Bus.write(0x03);
+   Bus.write(*((unsigned char *)&Temp+1));
+   Bus.write(*((unsigned char *)&Temp));
+   Bus.stop();
+}
+
+float TMP175::fReadTemperatureHighTMP175(void){
+   unsigned short Temp;
+   float Cal;
+   
+   Bus.start();
+   Bus.write(_Address&0xFE);
+   Bus.write(0x03);
+   Bus.start();
+   Bus.write(_Address | 0x01);
+   *((unsigned char *)&Temp+1)=Bus.read(1);
+   *((unsigned char *)&Temp)=Bus.read(0);
+   Bus.stop();   
+   
+   Temp>>=4;
+   Cal=Temp*0.0625;
+   if((0x0800&Temp)!=0x0000){
+      Cal-=128.0;
+   }
+   
+   return(Cal);
+}
+
+float TMP175::fReadTemperatureTMP175(void){
+   unsigned short Temp;
+   float Cal;
+   
+   Bus.start();
+   Bus.write(_Address&0xFE);
+   Bus.write(0x00);
+   Bus.start();
+   Bus.write(_Address | 0x01);
+   *((unsigned char *)&Temp+1)=Bus.read(1);
+   *((unsigned char *)&Temp)=Bus.read(0);
+   Bus.stop();   
+   
+   Temp>>=(Rotar+4);
+   Cal=((float)Factor*(Temp&Mascara));
+   if(((~Mascara)&Temp)!=0x0000){
+      Cal-=128.0;
+   }
+   
+   return(Cal);
+}
+
+// Only SHUTDOWN MODE 
+void TMP175::vStartSingleConversionTMP175(void){
+   unsigned char Temp;
+
+   Bus.start();
+   Bus.write(_Address&0xFE);
+   Bus.write(0x01);
+   Bus.start();
+   Bus.write(_Address | 0x01);
+   Temp=Bus.read(0);
+   Bus.stop();     
+   
+   Bus.start();
+   Bus.write(_Address&0xFE);
+   Bus.write(0x01);
+   Bus.write(Temp|0x80);
+   Bus.stop(); 
+}
+
+TMP175::operator float(){
+
+    return(fReadTemperatureTMP175());
+}
+
+bool TMP175::bReadPinAlertTMP175(void){
+    
+    return(_PIN_ALERT);
+}
\ No newline at end of file