Diff: MAX30208.cpp

Revision:

10:d46390b7aa64

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MAX30208.cpp	Fri Sep 04 18:04:36 2020 +0000
@@ -0,0 +1,235 @@
+/*******************************************************************************
+* Copyright (C) Maxim Integrated Products, Inc., All Rights Reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a
+* copy of this software and associated documentation files (the "Software"),
+* to deal in the Software without restriction, including without limitation
+* the rights to use, copy, modify, merge, publish, distribute, sublicense,
+* and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+* OTHER DEALINGS IN THE SOFTWARE.
+*
+* Except as contained in this notice, the name of Maxim Integrated
+* Products, Inc. shall not be used except as stated in the Maxim Integrated
+* Products, Inc. Branding Policy.
+*
+* The mere transfer of this software does not imply any licenses
+* of trade secrets, proprietary technology, copyrights, patents,
+* trademarks, maskwork rights, or any other form of intellectual
+* property whatsoever. Maxim Integrated Products, Inc. retains all
+* ownership rights.
+*******************************************************************************
+*/
+ 
+ 
+#include "MAX30208.h"
+
+
+//******************************************************************************
+MAX30208::MAX30208(I2C &i2c, uint8_t slaveAddress): 
+m_i2c(i2c), m_writeAddress(slaveAddress << 1), 
+m_readAddress((slaveAddress << 1) | 1)
+{
+}
+
+
+//******************************************************************************
+MAX30208::~MAX30208(void) {
+  //empty block
+}
+
+//******************************************************************************
+    int32_t MAX30208::writeInterruptRegister(Configuration_InterruptEnable config) {
+        return(writeRegister(MAX30208::Interrupt_Enable,(config.all << 8),2));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::readInterruptRegister(Configuration_InterruptEnable &config) {
+        uint16_t data;
+        int32_t status;
+        status = readRegister(MAX30208::Interrupt_Enable, data, 1);
+        if(status == 0) {
+            config.all = data;
+        }
+        return(status);
+    }
+
+//****************************************************************************** 
+    int32_t MAX30208::readStatus(uint16_t &value) {
+        return(readRegister(MAX30208::Status,value, 1));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::readWritePointer(uint16_t &value) {
+        return (readRegister(MAX30208::FIFO_Write_Pointer,value, 1));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::readReadPointer(uint16_t &value) {
+        return (readRegister(MAX30208::FIFO_Read_Pointer,value,1));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::writeReadPointer(uint8_t config) {
+        return(writeRegister(MAX30208::FIFO_Read_Pointer, (config << 8),2));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::readOverflow(uint16_t &value) {
+        return(readRegister(MAX30208::FIFO_Overflow_Counter,value, 1));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::readDataCounter(uint16_t &value) {
+        return(readRegister(MAX30208::FIFO_Data_Counter,value, 1));  
+    }
+    
+//******************************************************************************
+   int32_t MAX30208::readData(uint16_t &value) {
+        return(readRegister(MAX30208::FIFO_Data,value, 2));
+    }
+    
+//******************************************************************************
+   int32_t MAX30208::takeDataMeasurment() {
+        return(writeRegister(MAX30208::Temp_Sensor_Setup,0xFF00,2));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::readFIFOConfig1(uint16_t &value) {
+        return (readRegister(MAX30208::FIFO_Config1,value, 1));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::writeFIFOConfig1(uint8_t config) { 
+        return(writeRegister(MAX30208::FIFO_Config1,(config << 8),2));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::readFIFOConfig2(Configuration_FIFOConfig2 &config) {
+        uint16_t data;
+        int32_t status;
+        status = readRegister(MAX30208::FIFO_Config2, data, 1);
+        if(status == 0){
+            config.all = data;
+        }
+        return(status);
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::writeFIFOConfig2(Configuration_FIFOConfig2 config) {
+        return(writeRegister(MAX30208::FIFO_Config2,(config.all << 8),2));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::resetDevice() {
+        return(writeRegister(MAX30208::System_Control,(0x01 << 8),2));
+    }
+
+//******************************************************************************
+   int32_t MAX30208::readAlarmHigh(uint16_t &temp) {
+        return readRegister(MAX30208::Alarm_High_MSB,temp, 2);
+    }
+       
+//******************************************************************************
+    int32_t MAX30208::writeAlarmHigh(uint16_t temp) {
+        return(writeRegister(MAX30208::Alarm_High_MSB, temp, 3));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::readAlarmLow(uint16_t &value) {
+        return (readRegister(MAX30208::Alarm_Low_MSB,value, 2));
+    }
+    
+//******************************************************************************
+   int32_t MAX30208::writeAlarmLow(uint16_t temp) {
+        return(writeRegister(MAX30208::Alarm_Low_MSB,temp,3));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::readGPIOSetup(Configuration_GPIOSetup &config) {
+        uint16_t data;
+        int32_t status;
+        status = readRegister(MAX30208::GPIO_Setup, data, 1);
+        if(status == 0) {
+            config.all = data;
+        }
+        return(status);
+    }
+
+//******************************************************************************
+    int32_t MAX30208::writeGPIOSetup(Configuration_GPIOSetup config) {
+        return(writeRegister(MAX30208::GPIO_Setup,(config.all << 8),2));
+    }
+    
+//******************************************************************************
+    int32_t MAX30208::readGPIOControl(Configuration_GPIOControl &config) {
+        uint16_t data;
+        int32_t status;
+        status = readRegister(MAX30208::GPIO_Control, data, 1);
+        if(status == 0) {
+            config.all = data;
+        }
+        return(status);
+    }
+
+//******************************************************************************
+    int32_t MAX30208::writeGPIOControl(Configuration_GPIOControl config) {
+        return(writeRegister(MAX30208::GPIO_Control,(config.all << 8),2));
+    }
+    
+//******************************************************************************
+    float MAX30208::toCelsius(uint16_t rawTemp) {
+        float celsius;
+        celsius = 0.005*rawTemp;
+        return celsius;    
+    }
+    
+//******************************************************************************
+    float MAX30208::toFahrenheit(float temperatureC) {
+         float temperatureF;
+         temperatureF = (temperatureC * 1.8F) + 32.0f;
+         return temperatureF;   
+    }
+    
+//******************************************************************************
+int32_t MAX30208::writeRegister(Registers_e reg, uint16_t value, int bytesWritten) {
+  
+  int32_t ret;
+  
+  uint8_t hi = ((value >> 8) & 0xFF);
+  uint8_t lo = (value & 0xFF);
+  char val[3] = {reg, hi, lo};
+  
+  ret = m_i2c.write(m_writeAddress, val, bytesWritten, false); 
+  return (ret);
+}
+
+//******************************************************************************
+int32_t MAX30208::readRegister(Registers_e reg, uint16_t &value, int bytesRead) {
+    
+    int32_t ret;
+    char cmdata[1] = {reg};
+    char dataRead[2];
+        
+    ret = m_i2c.write(m_readAddress,cmdata,1,true);
+    if (ret == 0) {
+        ret = m_i2c.read(m_readAddress,dataRead,bytesRead,false);
+        if(ret == 0 && bytesRead == 2){
+            value = ((dataRead[0]<<8)+ dataRead[1]);
+        }
+        else if (ret == 0 && bytesRead == 1){
+            value = dataRead[0];    
+        }
+    }
+    return(ret);
+}
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