Diff: max9611.h

Revision:

5:6fec24c37e2a

Parent:

4:89644cedc8c8

Child:

6:32b5eb1df932

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/max9611.h	Sat Nov 08 20:45:21 2014 +0000
@@ -0,0 +1,193 @@
+/*
+  @file MAX9611.h
+  
+  @brief MAX9611 High-Side, Current-Sense Amplifiers with
+        12-Bit ADC and Op Amp/Comparator- Breakout I2C Library      
+
+  @Author lukasz uszko(luszko@op.pl)
+
+  Tested on FRDM-KL46Z and FRDM-KL25Z
+  
+  Copyright (c) 2014 luszko
+  Released under the MIT License (see http://mbed.org/license/mit)
+
+  Documentation regarding the MAX9611 might be found here: 
+  http://datasheets.maximintegrated.com/en/ds/MAX9611-MAX9612.pdf
+*/
+
+
+
+#ifndef MAX9611_H
+#define MAX9611_H
+
+#include "mbed.h"
+
+#define MAX9611_I2C_ADDRESS 0xE1   //A0 and A1 PIN are conected to GND , Write address 0xE0, Read Address 0xE1
+
+
+
+ 
+
+
+class MAX9611{
+        
+ private: 
+ 
+ typedef struct{
+      
+      
+      
+ }ControlReg1;
+      
+ typedef enum {
+    CHANNEL_A_0=0,
+    CHANNEL_A_1,
+    CHANNEL_A_2,
+    CHANNEL_B,
+    CHANNEL_C,
+    CHANNEL_D,
+    CHANNEL_E,
+    ALL_CHANNELS
+ }eCtrlReg1MUX;
+ 
+ typedef enum {
+   NORMAL_OPERATION_SHDN=0,
+   SHUTDOWN_MODE
+ }eCtrlReg1SHDN;
+ 
+typedef enum {
+   NORMAL_OPERATION_LR=0,
+   RESET
+ }eCtrlReg1LR;
+ 
+ typedef enum {
+    NORMAL_OPERATION_MODE=0,
+    COMPARATOR_MODE=7,
+    OPAMP_MODE=3
+ }eCtrlReg1MODE;
+ 
+ //watchdog delay time
+  typedef enum {
+    _1MS=0,
+    _100US=1
+ }eCtrlReg2DTIM;  
+ 
+ //watchdog retry delay time
+ typedef enum {
+    _50MS=0,
+    _10MS=1
+ }eCtrlReg2RTIM;  
+ 
+  //watchdog retry delay time
+ typedef enum {
+    CSA_DATA_BYTE_MSB_ADRR= 0x00,
+    CSA_DATA_BYTE_LSB_ADRR= 0x01,
+    RS_DATA_BYTE_MSB_ADRR= 0x02,
+    RS_DATA_BYTE_LSB_ADRR= 0x03,
+    OUT_DATA_BYTE_MSB_ADRR= 0x04,
+    OUT_DATA_BYTE_LSB_ADRR= 0x05,
+    SET_DATA_BYTE_MSB_ADRR= 0x06,
+    SET_DATA_BYTE_LSB_ADRR= 0x07,
+    TEMP_DATA_BYTE_MSB_ADRR= 0x08,
+    TEMP_DATA_BYTE_LSB_ADRR= 0x09,
+    CONTROL_REGISTER_1_ADRR= 0x0A,
+    CONTROL_REGISTER_2_ADRR= 0x0B
+ }eRegAddresses;  
+   
+   
+   public:
+
+    /** Create an MAX9611 instance
+     * @param sda pin 
+     * @param scl pin 
+     * @param address: I2C slave address 
+     */
+    MAX9611(PinName sda, PinName scl,int i2cFrequency=100000,int address = MAX9611_I2C_ADDRESS); 
+
+    /** Create a MAX9611 instance
+     * @param i2c object
+     * @param address: I2C slave address 
+     */
+    MAX9611(I2C& i2c, int address = MAX9611_I2C_ADDRESS); 
+
+    /** Initialization: set member values and 
+     * @returns
+     *    true on success,
+     *    false on error
+     */
+    bool initMax9611(eCtrlReg1MUX mux=  ALL_CHANNELS, 
+                    eCtrlReg1SHDN shdn= NORMAL_OPERATION_SHDN, 
+                    eCtrlReg1LR lr=NORMAL_OPERATION_LR, 
+                    eCtrlReg1MODE mode=NORMAL_OPERATION_MODE, 
+                    eCtrlReg2DTIM watchdogDelay= _1MS, 
+                    eCtrlReg2RTIM watchdogRetryDelay=_50MS);
+
+    /** Read temperature from the MAX9611.
+     * @param temperature (C) 
+     * @returns
+     *   1 on success,
+     *   0 on error
+     */    
+    bool readTemp();
+    
+    /** Get temperature from the last measurement 
+     *  
+     * @returns
+     *   temperature (C)
+     */    
+   inline float getTemp(void) {return mTemperature;}
+
+protected:
+       
+    I2C i2c;   
+    int i2cAddr;
+        
+private: 
+
+    float mTemperature;
+ 
+    /** Write data to the given register
+     *  
+     * @returns
+     *   1 on success,
+     *   0 on error
+     */  
+    bool write(uint8_t regAddress, uint8_t* data,int dataLength);
+  
+    /** Write data to the given register
+     * @param register Address
+     * @param data to read
+     * @param length of data to read 
+     * @returns
+     *   1 on success,
+     *   0 on error
+     */  
+    bool read(uint8_t regAddress, uint8_t* data,int length);
+    
+    
+    /** Make 12 bit data from 2 bytes received from thr device data read from Data regiters of Max9611/9612 are laid in the following way : 
+     *  Byte 1:  bit7-MSB12........bit0-MSB05 ;  Byte 2: bit7-LSB04.... bit4-LSB00 
+     * @param MSB byte
+     * @param 4 bits of LSB bytes
+     * @returns 1 2bit data
+     *   
+     */  
+    inline uint16_t get12BitData(uint8_t msbByte,uint8_t lsbByte){
+        uint16_t data12Bit= (msbByte<<4)|((lsbByte>>4)&0x0F);
+        return data12Bit; 
+    }
+    
+    
+    inline uint16_t get9BitData(uint8_t msbByte,uint8_t lsbByte){
+        uint16_t data9Bit= (msbByte<<1)|((lsbByte>>6)&0x01);
+        return data9Bit; 
+    }
+    
+    
+    
+    
+        
+
+};
+
+#endif
\ No newline at end of file