David Wahl / KellerDruck_pressure

Library to read from Keller Druck I2C Pressure sensors. Inputs are I2C object and address.

Dependents:   TestBenchSerenity-proto_F429ZI TestBenchFlow HSPFLOW1 TestBenchFlow1 ... more

keller_pressure.h@3:1a0add40e308, 2017-05-23 (annotated)

Committer:
dmwahl
Date:
Tue May 23 17:29:25 2017 +0000
Revision:
3:1a0add40e308
Parent:
1:805ee7853062
Child:
6:deb4008b136e
Added error detection and simplified i2c commands

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dmwahl 0:fc5c10fc5a05 1 #ifndef KELLER_PRESSURE_H
dmwahl 0:fc5c10fc5a05 2 #define KELLER_PRESSURE_H
dmwahl 0:fc5c10fc5a05 3
dmwahl 0:fc5c10fc5a05 4 #include "mbed.h"
dmwahl 0:fc5c10fc5a05 5
dmwahl 0:fc5c10fc5a05 6 #define I2C_READ 1
dmwahl 0:fc5c10fc5a05 7 #define I2C_WRITE 0
dmwahl 0:fc5c10fc5a05 8
dmwahl 0:fc5c10fc5a05 9 #define KELLER_PRESSURE_I2C_CLK_SPD 400000L
dmwahl 0:fc5c10fc5a05 10 #define KELLER_PRESSURE_REQUEST_MEASUREMENT 0xAC
dmwahl 3:1a0add40e308 11 #define KELLER_PRESSURE_MEASUREMENT_DONE 0x40
dmwahl 0:fc5c10fc5a05 12
dmwahl 0:fc5c10fc5a05 13 #define KELLER_PRESSURE_CUST_ID0 0x00 // for DB access
dmwahl 0:fc5c10fc5a05 14 #define KELLER_PRESSURE_CUST_ID1 0x01 // for DB access
dmwahl 0:fc5c10fc5a05 15 #define KELLER_PRESSURE_SCALING0 0x12 // Year [0..31]+2010 Bit11..15 | Month [0..15] Bit7..10| Day [0..31] Bit2..6| P-Mode[0..3] Bit0..1 (Y:5bit|M:4bit|D:5bit|P:2bit)
dmwahl 0:fc5c10fc5a05 16 #define KELLER_PRESSURE_SCALING1 0x13 // Pmin [bar] MSWord (Pmin [bar] als 32bit float)
dmwahl 0:fc5c10fc5a05 17 #define KELLER_PRESSURE_SCALING2 0x14 // Pmin [bar] LSWord (Pmin [bar] als 32bit float)
dmwahl 0:fc5c10fc5a05 18 #define KELLER_PRESSURE_SCALING3 0x15 // Pmax [bar] MSWord (Pmax [bar] als 32bit float)
dmwahl 0:fc5c10fc5a05 19 #define KELLER_PRESSURE_SCALING4 0x16 // Pmax [bar] LSWord (Pmax [bar] als 32bit float)
dmwahl 0:fc5c10fc5a05 20
dmwahl 1:805ee7853062 21 #define KELLER_PRESSURE_SCALING0_YEAR_MASK 0xF800
dmwahl 1:805ee7853062 22 #define KELLER_PRESSURE_SCALING0_MONTH_MASK 0x0780
dmwahl 1:805ee7853062 23 #define KELLER_PRESSURE_SCALING0_DAY_MASK 0x007C
dmwahl 1:805ee7853062 24 #define KELLER_PRESSURE_SCALING0_MODE_MASK 0x0003
dmwahl 0:fc5c10fc5a05 25
dmwahl 0:fc5c10fc5a05 26 class KELLER_PRESSURE
dmwahl 0:fc5c10fc5a05 27 {
dmwahl 0:fc5c10fc5a05 28 protected:
dmwahl 0:fc5c10fc5a05 29 I2C &i2c;
dmwahl 0:fc5c10fc5a05 30 uint8_t mi2cAddress;
dmwahl 0:fc5c10fc5a05 31
dmwahl 3:1a0add40e308 32 char _write(char regAddress, char data);
dmwahl 3:1a0add40e308 33 char _read_multibyte(char regAddress, char* data, char count);
dmwahl 0:fc5c10fc5a05 34
dmwahl 0:fc5c10fc5a05 35
dmwahl 0:fc5c10fc5a05 36 public:
dmwahl 0:fc5c10fc5a05 37 KELLER_PRESSURE(I2C &i2c, int addr);
dmwahl 0:fc5c10fc5a05 38 ~KELLER_PRESSURE();
dmwahl 0:fc5c10fc5a05 39 char getStatus();
dmwahl 0:fc5c10fc5a05 40
dmwahl 0:fc5c10fc5a05 41 uint16_t Cust_ID0, Cust_ID1, Scaling0, Scaling1, Scaling2, Scaling3, Scaling4;
dmwahl 0:fc5c10fc5a05 42
dmwahl 0:fc5c10fc5a05 43 // Date of manufacture info
dmwahl 0:fc5c10fc5a05 44 uint16_t year;
dmwahl 0:fc5c10fc5a05 45 uint8_t month, day, mode;
dmwahl 0:fc5c10fc5a05 46
dmwahl 0:fc5c10fc5a05 47 uint16_t status, pressure, temperature; // raw readings
dmwahl 1:805ee7853062 48 float pmin, pmax; // Min, max pressures (bar) read from device
dmwahl 0:fc5c10fc5a05 49
dmwahl 0:fc5c10fc5a05 50 // Pressures are absolute
dmwahl 0:fc5c10fc5a05 51 double pressureBAR, pressurePSI, pressureKPA, temperatureC, temperatureF;
dmwahl 0:fc5c10fc5a05 52
dmwahl 3:1a0add40e308 53 char readPT(); // return 0 if good reading, 1 if error
dmwahl 0:fc5c10fc5a05 54 bool isAvailable();
dmwahl 3:1a0add40e308 55 char readUserInfo();
dmwahl 0:fc5c10fc5a05 56 };
dmwahl 0:fc5c10fc5a05 57
dmwahl 0:fc5c10fc5a05 58 #endif