Keisha Brathwaite / Mbed 2 deprecated KBrat-SSD645-Midterm_Part2

KBrat-SSD645-Midterm_Part2

Dependencies:   MMA8451Q8g_Update SLCD mbed

Fork of KL46z_single_tap_2017 by Stanley Cohen

KL46z_single_tap_2016..cpp@11:c842619c49a1, 2016-02-22 (annotated)

Committer:
scohennm
Date:
Mon Feb 22 16:56:38 2016 +0000
Revision:
11:c842619c49a1
Child:
12:4774c4fc718e
Updated comments and clalcs for theshold and timelimit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
scohennm 11:c842619c49a1 1 #include "mbed.h"
scohennm 11:c842619c49a1 2 #include "MMA8451Q8g.h"
scohennm 11:c842619c49a1 3 #include "SLCD.h"
scohennm 11:c842619c49a1 4
scohennm 11:c842619c49a1 5 #define BLINKTIME 0.2
scohennm 11:c842619c49a1 6 #define RELAYON 0
scohennm 11:c842619c49a1 7 #define RELAYOFF 1
scohennm 11:c842619c49a1 8 #define LEDDELAY 0.4
scohennm 11:c842619c49a1 9 #define WAITDELAY 0.7
scohennm 11:c842619c49a1 10 #define LCDLEN 10
scohennm 11:c842619c49a1 11
scohennm 11:c842619c49a1 12 #define REG_WHO_AM_I 0x0D
scohennm 11:c842619c49a1 13 #define XYZ_DATA_CFG 0x0E
scohennm 11:c842619c49a1 14
scohennm 11:c842619c49a1 15 #define REG_OUT_X_MSB 0x01
scohennm 11:c842619c49a1 16 #define REG_OUT_Y_MSB 0x03
scohennm 11:c842619c49a1 17 #define REG_OUT_Z_MSB 0x05
scohennm 11:c842619c49a1 18 #define REG_PULSE_CFG 0x21
scohennm 11:c842619c49a1 19 #define REG_PULSE_SRC 0x22
scohennm 11:c842619c49a1 20 #define REG_PULSE_THSZ 0x25
scohennm 11:c842619c49a1 21 #define REH_PULSE_TMLT 0x26
scohennm 11:c842619c49a1 22 #define REG_CTRL_4 0x2D
scohennm 11:c842619c49a1 23 #define REG_CTRL_5 0x2E
scohennm 11:c842619c49a1 24
scohennm 11:c842619c49a1 25 #define MAX_2G 0x00
scohennm 11:c842619c49a1 26 #define MAX_4G 0x01
scohennm 11:c842619c49a1 27 #define MAX_8G 0x02
scohennm 11:c842619c49a1 28 #define SET_INTERRUPT 0x08 //using interrupt INT1 PTC5
scohennm 11:c842619c49a1 29 #define SET_INT_LINE 0x08
scohennm 11:c842619c49a1 30 //#define SET_INTERRUPT 0x00 //using interrupt INT2 PTD1
scohennm 11:c842619c49a1 31 //#define SET_INT_LINE 0x00
scohennm 11:c842619c49a1 32 #define SET_THZ 0x20 // See Table 49 in data sheet
scohennm 11:c842619c49a1 33 /***********
scohennm 11:c842619c49a1 34 2g/0.063g/count = 32 counts
scohennm 11:c842619c49a1 35 ************/
scohennm 11:c842619c49a1 36 #define SET_TMLT 0x18 // See Talbe 51 in data sheet
scohennm 11:c842619c49a1 37 /******
scohennm 11:c842619c49a1 38 24 = 0x18
scohennm 11:c842619c49a1 39 time step at 800Hz ODR = 0.625ms
scohennm 11:c842619c49a1 40 24x0.625 = 15 ms
scohennm 11:c842619c49a1 41 ******/
scohennm 11:c842619c49a1 42
scohennm 11:c842619c49a1 43 //#define PRINTDBUG
scohennm 11:c842619c49a1 44 // Accelerometer SPI pins
scohennm 11:c842619c49a1 45 #if defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
scohennm 11:c842619c49a1 46 PinName const SDA = PTE25;
scohennm 11:c842619c49a1 47 PinName const SCL = PTE24;
scohennm 11:c842619c49a1 48 #elif defined (TARGET_KL05Z)
scohennm 11:c842619c49a1 49 PinName const SDA = PTB4;
scohennm 11:c842619c49a1 50 PinName const SCL = PTB3;
scohennm 11:c842619c49a1 51 #else
scohennm 11:c842619c49a1 52 #error TARGET NOT DEFINED
scohennm 11:c842619c49a1 53 #endif
scohennm 11:c842619c49a1 54
scohennm 11:c842619c49a1 55 #define MMA8451_I2C_ADDRESS (0x1d<<1)
scohennm 11:c842619c49a1 56
scohennm 11:c842619c49a1 57 Ticker ledBlink; // timinginterrupt for RED led
scohennm 11:c842619c49a1 58 InterruptIn MMA8451QInt1(PTC5); //push botton with internal pullup
scohennm 11:c842619c49a1 59 //InterruptIn MMA8451QInt1(PTD1);
scohennm 11:c842619c49a1 60 DigitalOut myled(LED_RED); // red led
scohennm 11:c842619c49a1 61 DigitalOut relay(LED_GREEN); // green led
scohennm 11:c842619c49a1 62
scohennm 11:c842619c49a1 63 MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
scohennm 11:c842619c49a1 64
scohennm 11:c842619c49a1 65 float delay = WAITDELAY;
scohennm 11:c842619c49a1 66 int relayState = RELAYOFF;
scohennm 11:c842619c49a1 67 int outState = false;
scohennm 11:c842619c49a1 68 SLCD slcd; //define LCD display
scohennm 11:c842619c49a1 69 char LCDMessages[2][LCDLEN] = {"TRUE", "FALS"};
scohennm 11:c842619c49a1 70
scohennm 11:c842619c49a1 71
scohennm 11:c842619c49a1 72 void LCDMess(char *lMess, float dWait){
scohennm 11:c842619c49a1 73 slcd.Home();
scohennm 11:c842619c49a1 74 slcd.clear();
scohennm 11:c842619c49a1 75 slcd.printf(lMess);
scohennm 11:c842619c49a1 76 wait(dWait);
scohennm 11:c842619c49a1 77 }
scohennm 11:c842619c49a1 78 void LCDMessNoDwell(char *lMess){
scohennm 11:c842619c49a1 79 slcd.Home();
scohennm 11:c842619c49a1 80 slcd.clear();
scohennm 11:c842619c49a1 81 slcd.printf(lMess);
scohennm 11:c842619c49a1 82 }
scohennm 11:c842619c49a1 83
scohennm 11:c842619c49a1 84 // Interrupt routines
scohennm 11:c842619c49a1 85 void LEDBlinker(){ // RED LED interrupt
scohennm 11:c842619c49a1 86 outState = !outState;
scohennm 11:c842619c49a1 87 myled.write(outState);
scohennm 11:c842619c49a1 88 }
scohennm 11:c842619c49a1 89
scohennm 11:c842619c49a1 90 void GreenLEDBlinker(){ // Green LED interrupt
scohennm 11:c842619c49a1 91 //uint8_t i_regData;
scohennm 11:c842619c49a1 92 relayState = !relayState;
scohennm 11:c842619c49a1 93 relay.write(relayState);
scohennm 11:c842619c49a1 94 //acc.readRegs(REG_PULSE_SRC, &i_regData, 1); // Clear the tap event
scohennm 11:c842619c49a1 95 }
scohennm 11:c842619c49a1 96
scohennm 11:c842619c49a1 97 // end interrupt routines
scohennm 11:c842619c49a1 98
scohennm 11:c842619c49a1 99 int main()
scohennm 11:c842619c49a1 100 {
scohennm 11:c842619c49a1 101 uint8_t regData;
scohennm 11:c842619c49a1 102 uint8_t latchData = 0x40; //0b01000000; //for pulse config register
scohennm 11:c842619c49a1 103 uint8_t axisData = 0x10; //0b00010000;
scohennm 11:c842619c49a1 104
scohennm 11:c842619c49a1 105 char lcdData[LCDLEN];
scohennm 11:c842619c49a1 106
scohennm 11:c842619c49a1 107 myled.write(outState);
scohennm 11:c842619c49a1 108 relay.write(relayState);
scohennm 11:c842619c49a1 109
scohennm 11:c842619c49a1 110 // set up interrrupts to be used later for taps
scohennm 11:c842619c49a1 111 MMA8451QInt1.rise(&GreenLEDBlinker);
scohennm 11:c842619c49a1 112 MMA8451QInt1.mode(PullNone);
scohennm 11:c842619c49a1 113
scohennm 11:c842619c49a1 114 // set up interrrupts to be used later for taps
scohennm 11:c842619c49a1 115 ledBlink.attach(&LEDBlinker, LEDDELAY);
scohennm 11:c842619c49a1 116
scohennm 11:c842619c49a1 117 // Read Pulse Source Data and check to see if things have been set
scohennm 11:c842619c49a1 118 acc.readRegs(REG_PULSE_CFG, &regData, 1); // check it
scohennm 11:c842619c49a1 119 sprintf (lcdData,"%x",regData);
scohennm 11:c842619c49a1 120 LCDMess(lcdData,BLINKTIME);
scohennm 11:c842619c49a1 121
scohennm 11:c842619c49a1 122 // *********** Initialize for tap tecognition ***********
scohennm 11:c842619c49a1 123 regData = latchData | axisData;
scohennm 11:c842619c49a1 124 acc.setRegisterInStandby(REG_PULSE_CFG, regData); // write the data
scohennm 11:c842619c49a1 125 acc.readRegs(REG_PULSE_CFG, &regData, 1); // check it
scohennm 11:c842619c49a1 126 sprintf (lcdData,"%x",regData);
scohennm 11:c842619c49a1 127 LCDMess(lcdData,BLINKTIME);
scohennm 11:c842619c49a1 128
scohennm 11:c842619c49a1 129 // Check to see if accerlometer is alive and well
scohennm 11:c842619c49a1 130 acc.setGLimit(MAX_4G); // For now set to 2g
scohennm 11:c842619c49a1 131 acc.readRegs(XYZ_DATA_CFG, &regData, 1);
scohennm 11:c842619c49a1 132 sprintf (lcdData,"%x",regData); // Note displaying in hexidecimal
scohennm 11:c842619c49a1 133 LCDMess(lcdData,BLINKTIME);
scohennm 11:c842619c49a1 134
scohennm 11:c842619c49a1 135 // Setup single-tap pulse prarameters.
scohennm 11:c842619c49a1 136 acc.setRegisterInStandby(REG_PULSE_THSZ, SET_THZ); // write the data
scohennm 11:c842619c49a1 137 acc.setRegisterInStandby(REH_PULSE_TMLT, SET_TMLT); // write the data
scohennm 11:c842619c49a1 138
scohennm 11:c842619c49a1 139 // Set up (pulse) interrupt to INT1 pin
scohennm 11:c842619c49a1 140 acc.setRegisterInStandby(REG_CTRL_4, SET_INTERRUPT); // write the data
scohennm 11:c842619c49a1 141 acc.setRegisterInStandby(REG_CTRL_5, SET_INT_LINE); // write the data
scohennm 11:c842619c49a1 142 // End or seetup
scohennm 11:c842619c49a1 143
scohennm 11:c842619c49a1 144 acc.readRegs(REG_WHO_AM_I, &regData, 1);
scohennm 11:c842619c49a1 145 sprintf (lcdData,"%x",regData);
scohennm 11:c842619c49a1 146 LCDMess(lcdData,BLINKTIME);
scohennm 11:c842619c49a1 147
scohennm 11:c842619c49a1 148
scohennm 11:c842619c49a1 149 while (true) {
scohennm 11:c842619c49a1 150 acc.readRegs(REG_PULSE_SRC, &regData, 1);
scohennm 11:c842619c49a1 151 sprintf (lcdData,"%x",regData);
scohennm 11:c842619c49a1 152 LCDMess(lcdData,BLINKTIME);
scohennm 11:c842619c49a1 153 LCDMessNoDwell(LCDMessages[relayState]);
scohennm 11:c842619c49a1 154 wait(delay);
scohennm 11:c842619c49a1 155 }
scohennm 11:c842619c49a1 156 }