AnnaLouise Martinez / Mbed 2 deprecated KL46z_single_tap_2017_ALM_Midterm_v2

Midterm V2 Pt2

Dependencies:   MMA8451Q8b SLCD mbed

Fork of KL46z_single_tap_2017 by Stanley Cohen

KL46z_single_tap_2016..cpp@13:535c003295df, 2017-03-15 (annotated)

Committer:
annalou
Date:
Wed Mar 15 15:52:38 2017 +0000
Revision:
13:535c003295df
Parent:
12:4774c4fc718e 
ALM_MIdtermV2Pt2

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
annalou 13:535c003295df 5 #define PROGNAME "AnnaLouise Martinez_midtermPt2\n\r"
scohennm 12:4774c4fc718e 6 #define BLINKTIME 1.5
scohennm 11:c842619c49a1 7 #define RELAYON 0
scohennm 11:c842619c49a1 8 #define RELAYOFF 1
scohennm 11:c842619c49a1 9 #define LEDDELAY 0.4
scohennm 11:c842619c49a1 10 #define WAITDELAY 0.7
scohennm 11:c842619c49a1 11 #define LCDLEN 10
scohennm 11:c842619c49a1 12
scohennm 11:c842619c49a1 13 #define REG_WHO_AM_I 0x0D
scohennm 11:c842619c49a1 14 #define XYZ_DATA_CFG 0x0E
scohennm 11:c842619c49a1 15
scohennm 11:c842619c49a1 16 #define REG_OUT_X_MSB 0x01
scohennm 11:c842619c49a1 17 #define REG_OUT_Y_MSB 0x03
scohennm 11:c842619c49a1 18 #define REG_OUT_Z_MSB 0x05
scohennm 11:c842619c49a1 19 #define REG_PULSE_CFG 0x21
scohennm 11:c842619c49a1 20 #define REG_PULSE_SRC 0x22
scohennm 11:c842619c49a1 21 #define REG_PULSE_THSZ 0x25
scohennm 11:c842619c49a1 22 #define REH_PULSE_TMLT 0x26
scohennm 11:c842619c49a1 23 #define REG_CTRL_4 0x2D
scohennm 11:c842619c49a1 24 #define REG_CTRL_5 0x2E
scohennm 11:c842619c49a1 25
scohennm 11:c842619c49a1 26 #define MAX_2G 0x00
scohennm 11:c842619c49a1 27 #define MAX_4G 0x01
scohennm 11:c842619c49a1 28 #define MAX_8G 0x02
scohennm 11:c842619c49a1 29 #define SET_INTERRUPT 0x08 //using interrupt INT1 PTC5
scohennm 11:c842619c49a1 30 #define SET_INT_LINE 0x08
scohennm 11:c842619c49a1 31 #define SET_THZ 0x20 // See Table 49 in data sheet
scohennm 11:c842619c49a1 32 /***********
scohennm 12:4774c4fc718e 33 0b0010 0000
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 12:4774c4fc718e 38 0b0001 1000
scohennm 11:c842619c49a1 39 24 = 0x18
annalou 13:535c003295df 40 time step at 400Hz ODR = 0.625ms
scohennm 11:c842619c49a1 41 24x0.625 = 15 ms
scohennm 11:c842619c49a1 42 ******/
scohennm 11:c842619c49a1 43
scohennm 11:c842619c49a1 44 //#define PRINTDBUG
scohennm 11:c842619c49a1 45 // Accelerometer SPI pins
scohennm 11:c842619c49a1 46 #if defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
scohennm 11:c842619c49a1 47 PinName const SDA = PTE25;
scohennm 11:c842619c49a1 48 PinName const SCL = PTE24;
scohennm 11:c842619c49a1 49 #elif defined (TARGET_KL05Z)
scohennm 11:c842619c49a1 50 PinName const SDA = PTB4;
scohennm 11:c842619c49a1 51 PinName const SCL = PTB3;
scohennm 11:c842619c49a1 52 #else
scohennm 11:c842619c49a1 53 #error TARGET NOT DEFINED
scohennm 11:c842619c49a1 54 #endif
scohennm 11:c842619c49a1 55
scohennm 11:c842619c49a1 56 #define MMA8451_I2C_ADDRESS (0x1d<<1)
scohennm 11:c842619c49a1 57
scohennm 11:c842619c49a1 58 Ticker ledBlink; // timinginterrupt for RED led
annalou 13:535c003295df 59 InterruptIn MMA8451QInt2(PTD1); //push botton with internal pullup
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;
annalou 13:535c003295df 68 Serial pc(USBTX, USBRX);
scohennm 11:c842619c49a1 69 SLCD slcd; //define LCD display
scohennm 11:c842619c49a1 70 char LCDMessages[2][LCDLEN] = {"TRUE", "FALS"};
scohennm 11:c842619c49a1 71
scohennm 11:c842619c49a1 72
scohennm 11:c842619c49a1 73 void LCDMess(char *lMess, float dWait){
scohennm 11:c842619c49a1 74 slcd.Home();
scohennm 11:c842619c49a1 75 slcd.clear();
scohennm 11:c842619c49a1 76 slcd.printf(lMess);
scohennm 11:c842619c49a1 77 wait(dWait);
scohennm 11:c842619c49a1 78 }
scohennm 11:c842619c49a1 79 void LCDMessNoDwell(char *lMess){
scohennm 11:c842619c49a1 80 slcd.Home();
scohennm 11:c842619c49a1 81 slcd.clear();
scohennm 11:c842619c49a1 82 slcd.printf(lMess);
scohennm 11:c842619c49a1 83 }
scohennm 11:c842619c49a1 84
scohennm 11:c842619c49a1 85 // Interrupt routines
scohennm 11:c842619c49a1 86 void LEDBlinker(){ // RED LED interrupt
scohennm 11:c842619c49a1 87 outState = !outState;
scohennm 11:c842619c49a1 88 myled.write(outState);
scohennm 11:c842619c49a1 89 }
scohennm 11:c842619c49a1 90
scohennm 11:c842619c49a1 91 void GreenLEDBlinker(){ // Green LED interrupt
scohennm 11:c842619c49a1 92 //uint8_t i_regData;
scohennm 11:c842619c49a1 93 relayState = !relayState;
scohennm 11:c842619c49a1 94 relay.write(relayState);
scohennm 11:c842619c49a1 95 //acc.readRegs(REG_PULSE_SRC, &i_regData, 1); // Clear the tap event
scohennm 11:c842619c49a1 96 }
scohennm 11:c842619c49a1 97
scohennm 11:c842619c49a1 98 // end interrupt routines
scohennm 11:c842619c49a1 99
scohennm 11:c842619c49a1 100 int main()
scohennm 11:c842619c49a1 101 {
scohennm 11:c842619c49a1 102 uint8_t regData;
scohennm 11:c842619c49a1 103 uint8_t latchData = 0x40; //0b01000000; //for pulse config register
scohennm 11:c842619c49a1 104 uint8_t axisData = 0x10; //0b00010000;
scohennm 11:c842619c49a1 105
scohennm 11:c842619c49a1 106 char lcdData[LCDLEN];
scohennm 11:c842619c49a1 107
scohennm 11:c842619c49a1 108 myled.write(outState);
scohennm 11:c842619c49a1 109 relay.write(relayState);
annalou 13:535c003295df 110 pc.printf(PROGNAME);
scohennm 11:c842619c49a1 111 // set up interrrupts to be used later for taps
annalou 13:535c003295df 112 MMA8451QInt2.rise(&GreenLEDBlinker);
annalou 13:535c003295df 113 MMA8451QInt2.mode(PullNone);
scohennm 11:c842619c49a1 114
scohennm 11:c842619c49a1 115 // set up interrrupts to be used later for taps
scohennm 11:c842619c49a1 116 ledBlink.attach(&LEDBlinker, LEDDELAY);
scohennm 11:c842619c49a1 117
scohennm 11:c842619c49a1 118 // Read Pulse Source Data and check to see if things have been set
scohennm 11:c842619c49a1 119 acc.readRegs(REG_PULSE_CFG, &regData, 1); // check it
scohennm 11:c842619c49a1 120 sprintf (lcdData,"%x",regData);
annalou 13:535c003295df 121 pc.printf("THIS IS SOURCE REG:", "%x",REG_PULSE_CFG, "\n");
scohennm 11:c842619c49a1 122 LCDMess(lcdData,BLINKTIME);
scohennm 11:c842619c49a1 123
scohennm 11:c842619c49a1 124 // *********** Initialize for tap tecognition ***********
scohennm 11:c842619c49a1 125 regData = latchData | axisData;
scohennm 11:c842619c49a1 126 acc.setRegisterInStandby(REG_PULSE_CFG, regData); // write the data
scohennm 11:c842619c49a1 127 acc.readRegs(REG_PULSE_CFG, &regData, 1); // check it
scohennm 11:c842619c49a1 128 sprintf (lcdData,"%x",regData);
scohennm 11:c842619c49a1 129 LCDMess(lcdData,BLINKTIME);
scohennm 11:c842619c49a1 130
scohennm 11:c842619c49a1 131 // Check to see if accerlometer is alive and well
annalou 13:535c003295df 132 acc.setGLimit(MAX_2G); // For now set to 2g
scohennm 11:c842619c49a1 133 acc.readRegs(XYZ_DATA_CFG, &regData, 1);
scohennm 11:c842619c49a1 134 sprintf (lcdData,"%x",regData); // Note displaying in hexidecimal
scohennm 11:c842619c49a1 135 LCDMess(lcdData,BLINKTIME);
scohennm 11:c842619c49a1 136
scohennm 11:c842619c49a1 137 // Setup single-tap pulse prarameters.
scohennm 11:c842619c49a1 138 acc.setRegisterInStandby(REG_PULSE_THSZ, SET_THZ); // write the data
scohennm 11:c842619c49a1 139 acc.setRegisterInStandby(REH_PULSE_TMLT, SET_TMLT); // write the data
scohennm 11:c842619c49a1 140
scohennm 11:c842619c49a1 141 // Set up (pulse) interrupt to INT1 pin
scohennm 11:c842619c49a1 142 acc.setRegisterInStandby(REG_CTRL_4, SET_INTERRUPT); // write the data
scohennm 11:c842619c49a1 143 acc.setRegisterInStandby(REG_CTRL_5, SET_INT_LINE); // write the data
scohennm 11:c842619c49a1 144 // End or seetup
scohennm 11:c842619c49a1 145
scohennm 11:c842619c49a1 146 acc.readRegs(REG_WHO_AM_I, &regData, 1);
scohennm 11:c842619c49a1 147 sprintf (lcdData,"%x",regData);
scohennm 11:c842619c49a1 148 LCDMess(lcdData,BLINKTIME);
scohennm 11:c842619c49a1 149
scohennm 11:c842619c49a1 150
scohennm 11:c842619c49a1 151 while (true) {
scohennm 11:c842619c49a1 152 acc.readRegs(REG_PULSE_SRC, &regData, 1);
scohennm 11:c842619c49a1 153 sprintf (lcdData,"%x",regData);
scohennm 11:c842619c49a1 154 LCDMess(lcdData,BLINKTIME);
scohennm 11:c842619c49a1 155 LCDMessNoDwell(LCDMessages[relayState]);
scohennm 11:c842619c49a1 156 wait(delay);
scohennm 11:c842619c49a1 157 }
scohennm 11:c842619c49a1 158 }