Ryan Bancroft / DS1620

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DS1620 Class Reference
Public Member Functions

DS1620 Class Reference

Example: More...

#include <DS1620.h>

Public Member Functions

float getTemperature ()
 Get the temperature in degrees Celsius.
float getHighResolutionTemperature ()
 Get the temperature in degrees Celsius.
unsigned short readTemperatureRaw ()
 Read the TEMPERATURE REGISTER.
unsigned char readConfig ()
 Read the CONFIGURATION/STATUS REGISTER.
void writeConfig (unsigned char config)
 Write to the CONFIGURATION/STATUS REGISTER.
unsigned short readTLRaw ()
 Read the TL (Thermostat Low Limit) REGISTER.
void writeTLRaw (unsigned short temperature)
 Write to the TL (Thermostat Low Limit) REGISTER.
unsigned short readTHRaw ()
 Read the TH (Thermostat High Limit) REGISTER.
void writeTHRaw (unsigned short temperature)
 Write to the TH (Thermostat High Limit) REGISTER.
unsigned short readCounter ()
 Read the COUNTER REGISTER.
unsigned short readSlope ()
 Read the SLOPE REGISTER.
void loadSlope ()
 Loads the SLOPE REGISTER into the COUNTER REGISTER.
void startConversion ()
 Starts a temperature conversion.
void stopConversion ()
 Stops a temperature conversion.
void setSerialClockFrequency (clock_frequencies_t frequency)
 Sets the clock frequency for the serial interface.

Detailed Description

Example: 

 // Send the temperature to your computer
 #include "mbed.h"
 #include "DS1620.h"

 DS1620 temperatureSensor(p11, p12, p13);
 Serial pc(USBTX, USBRX);

 int main() {
   //Set mode to CPU & One Shot if it's not already set.
   if((temperatureSensor.readConfig() & 0x03) != 0x03) {
      temperatureSensor.writeConfig(0x03);
   }
   
   float temperature = 0.0;
   while(1) {
       temperatureSensor.startConversion();
       wait(1.0); //Wait for the temperature conversion to complete.  You can also poll the DONE flag in the STATUS REGISTER
       temperature = temperatureSensor.getHighResolutionTemperature();
       pc.printf("%.2f C\r\n", temperature);
   }       
 }

Definition at line 74 of file DS1620.h.

Member Function Documentation

float getHighResolutionTemperature (  )

Get the temperature in degrees Celsius.

Returns:
The temperature in Celsius calculated using the COUNTER and SLOPE REGISTERS as a float
Note:
The DS1620 must be in 1SHOT mode for accurate results.

Definition at line 49 of file DS1620.cpp.

float getTemperature (  )

Get the temperature in degrees Celsius.

Returns:
The temperature in Celsius with 0.5 degree resolution as a float

Definition at line 38 of file DS1620.cpp.

void loadSlope (  )

Loads the SLOPE REGISTER into the COUNTER REGISTER.

Definition at line 187 of file DS1620.cpp.

unsigned char readConfig (  )

Read the CONFIGURATION/STATUS REGISTER.

Returns:
The value of the CONFIGURATION/STATUS REGISTER

Definition at line 81 of file DS1620.cpp.

unsigned short readCounter (  )

Read the COUNTER REGISTER.

Returns:
The COUNTER REGISTER

Definition at line 157 of file DS1620.cpp.

unsigned short readSlope (  )

Read the SLOPE REGISTER.

Returns:
The SLOPE REGISTER

Definition at line 172 of file DS1620.cpp.

unsigned short readTemperatureRaw (  )

Read the TEMPERATURE REGISTER.

Returns:
The temperature in Celsius with 0.5 degree resolution as stored in the DS1620 registers

Definition at line 66 of file DS1620.cpp.

unsigned short readTHRaw (  )

Read the TH (Thermostat High Limit) REGISTER.

Returns:
The value to write to the TH (Thermostat High Limit) REGISTER in the DS1620 format

Definition at line 129 of file DS1620.cpp.

unsigned short readTLRaw (  )

Read the TL (Thermostat Low Limit) REGISTER.

Returns:
The value to write to the TL (Thermostat Low Limit) REGISTER in the DS1620 format

Definition at line 100 of file DS1620.cpp.

void setSerialClockFrequency ( clock_frequencies_t  frequency )

Sets the clock frequency for the serial interface.

Parameters:
frequency(freq500k, freq250k, freq125k, freq20k, freq10k, freq1k)
Note:
Defaults to 500KHz (freq500k)

Definition at line 208 of file DS1620.cpp.

void startConversion (  )

Starts a temperature conversion.

Definition at line 194 of file DS1620.cpp.

void stopConversion (  )

Stops a temperature conversion.

Definition at line 201 of file DS1620.cpp.

void writeConfig ( unsigned char  config )

Write to the CONFIGURATION/STATUS REGISTER.

Parameters:
configThe value to write to the CONFIGURATION/STATUS REGISTER

Definition at line 91 of file DS1620.cpp.

void writeTHRaw ( unsigned short  temperature )

Write to the TH (Thermostat High Limit) REGISTER.

Parameters:
temperatureThe value to write to the TH (Thermostat High Limit) REGISTER in the DS1620 format

Definition at line 144 of file DS1620.cpp.

void writeTLRaw ( unsigned short  temperature )

Write to the TL (Thermostat Low Limit) REGISTER.

Parameters:
temperatureThe value to write to the TL (Thermostat Low Limit) REGISTER in the DS1620 format

Definition at line 115 of file DS1620.cpp.

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