main.h

00001 #ifndef MAIN_H
00002 #define MAIN_H
00003 
00004 #include "mbed.h"
00005 #include "keller_pressure.h"
00006 #include "sensirion_sf04.h"
00007 #include "PID.h"
00008 #include "coil-driver.h"
00009 #include "VL6180.h"
00010 /*Start of Where Additional Code was Added
00011 --------------------------------------------------------------------------------------------------*/
00012 //Coil shutoff(A1, 5000, 40, 6); // Shutoff valve, 5ms spike time, 25kHz PWM at 15% duty cycle
00013 Coil injector(A0, 200, 40, 3); // Injector valve, 200us spike time, 25kHz PWM at 7.5% duty cycle
00014 
00015 InterruptIn dutycycleup(A2);
00016 InterruptIn dutycycledown(D4);
00017 InterruptIn frequencyup(A5);
00018 InterruptIn frequencydown(A4);
00019 
00020 Thread Injector_Valve_Control;
00021 
00022 double frequency=5.00;
00023 double dutycycle=0.75;
00024 float openvalue=(((1/frequency)*dutycycle));
00025 float offvalue=(1/frequency)-openvalue;
00026 
00027 /*
00028 --------------------------------------------------------------------------------------------------*/
00029 
00030 
00031 // Mbed application shield display
00032 #include "C12832A1Z.h"
00033 #include "Small_7.h"
00034 #include "Fonts/ArialR12x14.h"
00035 
00036 C12832A1Z lcd(D11, D13, D12, D7, D10); // MOSI, SCK, Reset, A0, CS
00037 // LCD width and height (minus 1)
00038 #define lcdWidth 127
00039 #define lcdHeight 31
00040 
00041 // ISO/SEV pressure: 10psi, DES: 25-30psi
00042 #define pumpSetPointPSI 45
00043 #define pumpMinPSI 0
00044 #define pumpMaxPSI 85
00045 //#define pumpHystPSI 2
00046 
00047 // Gas flow sensor defines
00048 #define SFM7033_ADDR 0x40
00049 #define SFM7034_ADDR 0x40
00050 // End gas flow sensor defines
00051 
00052 // Liquid pump defines
00053 // PID settings
00054 #define pumpPIDRate .2 // Pump PID computation interval (seconds)
00055 float pumpKp = 4.0;
00056 float pumpKi = 1.0;
00057 #define pumpKd 0
00058 
00059 #define pumpPwmFrequency 1000 // Frequency of PWM signal supplied to pump
00060 #define pumpTachPoles 6 // 6 pulses per revolution
00061 #define pumpTachPin PA_10 // Pump tach input (green wire)
00062 #define pumpCtrlPin PB_13 // Pump control (white wire)
00063 // End Liquid pump defines
00064 
00065 Thread print_process_values_t, update_pressures_t, update_flow1_t, update_flow2_t, update_level_t, update_lcd_t, update_shutoff_t;
00066 Mutex i2c1_m, i2c2_m, i2c3_m, stdio_m;
00067 
00068 //DigitalOut myled(LED2);
00069 Serial pc(SERIAL_TX, SERIAL_RX, 250000); // tx, rx, baud
00070 
00071 // an I2C sub-class that provides a constructed default
00072 class I2CPreInit : public I2C
00073 {
00074 public:
00075     I2CPreInit(PinName sda, PinName scl, int freq) : I2C(sda, scl) {
00076         frequency(freq);
00077     };
00078 };
00079 
00080 //I2CPreInit gI2C1(I2C_SDA, I2C_SCL, I2C frequency);
00081 I2CPreInit i2c1(PB_9, PB_8, 100000);
00082 I2CPreInit i2c2(PB_3, PB_10, 100000);
00083 I2CPreInit i2c3(PB_4, PA_8, 100000);
00084 
00085 KELLER_PRESSURE pumpPressure(i2c1, 0x40);
00086 
00087 // Sensirion gas flow sensor object (i2c object, i2c address, calibration field, resolution 9-16 bit)
00088 // calibration field 1: Air, 2: O2, 3: N2O
00089 SF04 mainflow(i2c2, SFM7033_ADDR, 0, 9); // Gas flow sensor (SFM7033)
00090 SF04 loopflow(i2c3, SFM7034_ADDR, 0, 9);
00091 // Mbed application shield
00092 //AnalogIn pot1(A0);
00093 AnalogIn pot2(A1);
00094 
00095 PwmOut pump(pumpCtrlPin);
00096 
00097 //pump.period(.001);
00098 
00099 PID pump_control_PID(pumpKp, pumpKi, pumpKd, pumpPIDRate);
00100 
00101 InterruptIn pumpTach(pumpTachPin);
00102 int pumpTachCounts = 0;
00103 float pumpRpm = 0;
00104 
00105 //PwmOut ledRed(PE_11);
00106 //PwmOut ledGrn(PD_15);
00107 //DigitalOut ledBlu(PF_12);
00108 
00109 // Level sensor
00110 //VL6180 level(i2c1); //I2C object
00111 //float agentlevel = 0;
00112 Ticker pump_tach_ticker, pump_pid_ticker, print_process_values_ticker, lcd_update_ticker;
00113 #endif