Colin Monroe / Mbed 2 deprecated CKM_midterm_pt2

attempt at pt 2 of the midterm

Dependencies:   MMA8451Q8b SLCD mbed

KL46z_single_tap_2016..cpp@0:78436f4486d2, 2017-03-15 (annotated)

Committer:
CKMonroe
Date:
Wed Mar 15 05:34:55 2017 +0000
Revision:
0:78436f4486d2
1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
CKMonroe 0:78436f4486d2 1 #include "mbed.h"
CKMonroe 0:78436f4486d2 2 #include "MMA8451Q8g.h"
CKMonroe 0:78436f4486d2 3 #include "SLCD.h"
CKMonroe 0:78436f4486d2 4
CKMonroe 0:78436f4486d2 5 #define BLINKTIME 1.5
CKMonroe 0:78436f4486d2 6 #define RELAYON 0
CKMonroe 0:78436f4486d2 7 #define RELAYOFF 1
CKMonroe 0:78436f4486d2 8 #define LEDDELAY 0.4
CKMonroe 0:78436f4486d2 9 #define WAITDELAY 0.7
CKMonroe 0:78436f4486d2 10 #define LCDLEN 10
CKMonroe 0:78436f4486d2 11
CKMonroe 0:78436f4486d2 12 #define REG_WHO_AM_I 0x0D
CKMonroe 0:78436f4486d2 13 #define XYZ_DATA_CFG 0x0E
CKMonroe 0:78436f4486d2 14
CKMonroe 0:78436f4486d2 15 #define REG_OUT_X_MSB 0x01
CKMonroe 0:78436f4486d2 16 #define REG_OUT_Y_MSB 0x03
CKMonroe 0:78436f4486d2 17 #define REG_OUT_Z_MSB 0x05
CKMonroe 0:78436f4486d2 18 #define REG_PULSE_CFG 0x21
CKMonroe 0:78436f4486d2 19 #define REG_PULSE_SRC 0x22
CKMonroe 0:78436f4486d2 20 #define REG_PULSE_THSZ 0x25
CKMonroe 0:78436f4486d2 21
CKMonroe 0:78436f4486d2 22 //#define REH_PULSE_TMLT 0x26
CKMonroe 0:78436f4486d2 23 //CKM- changed this to 0x38 to try to set
CKMonroe 0:78436f4486d2 24 //transient tap detection limit to 35ms
CKMonroe 0:78436f4486d2 25 #define REH_PULSE_TMLT 0x38
CKMonroe 0:78436f4486d2 26
CKMonroe 0:78436f4486d2 27 #define REG_CTRL_4 0x2D
CKMonroe 0:78436f4486d2 28 #define REG_CTRL_5 0x2E
CKMonroe 0:78436f4486d2 29
CKMonroe 0:78436f4486d2 30 #define MAX_2G 0x00
CKMonroe 0:78436f4486d2 31 #define MAX_4G 0x01
CKMonroe 0:78436f4486d2 32 #define MAX_8G 0x02
CKMonroe 0:78436f4486d2 33
CKMonroe 0:78436f4486d2 34 //CKM- leaving set_interrupt to change the pin to enable interrupts,
CKMonroe 0:78436f4486d2 35 //but changing the interrupt line to INT2
CKMonroe 0:78436f4486d2 36 #define SET_INTERRUPT 0x08
CKMonroe 0:78436f4486d2 37 //#define SET_INT_LINE 0x08
CKMonroe 0:78436f4486d2 38 #define SET_INT_LINE 0x2E&0xF7
CKMonroe 0:78436f4486d2 39
CKMonroe 0:78436f4486d2 40 //#define SET_THZ 0x20 // See Table 49 in data sheet
CKMonroe 0:78436f4486d2 41 //CKM- changed this to 40 counts,
CKMonroe 0:78436f4486d2 42 //which is 0x28 in hex
CKMonroe 0:78436f4486d2 43 #define SET_THZ 0x28
CKMonroe 0:78436f4486d2 44
CKMonroe 0:78436f4486d2 45 //CKM- adding another define for the 400Hz mask
CKMonroe 0:78436f4486d2 46 #define HZ_MASK 0x08
CKMonroe 0:78436f4486d2 47 #define REG_CTRL_REG_1 0x2A
CKMonroe 0:78436f4486d2 48
CKMonroe 0:78436f4486d2 49 /***********
CKMonroe 0:78436f4486d2 50 0b0010 0000
CKMonroe 0:78436f4486d2 51 2g/0.063g/count = 32 counts
CKMonroe 0:78436f4486d2 52 ************/
CKMonroe 0:78436f4486d2 53 #define SET_TMLT 0x18 // See Talbe 51 in data sheet
CKMonroe 0:78436f4486d2 54 /******
CKMonroe 0:78436f4486d2 55 0b0001 1000
CKMonroe 0:78436f4486d2 56 24 = 0x18
CKMonroe 0:78436f4486d2 57 time step at 800Hz ODR = 0.625ms
CKMonroe 0:78436f4486d2 58 24x0.625 = 15 ms
CKMonroe 0:78436f4486d2 59 ******/
CKMonroe 0:78436f4486d2 60
CKMonroe 0:78436f4486d2 61 //#define PRINTDBUG
CKMonroe 0:78436f4486d2 62 // Accelerometer SPI pins
CKMonroe 0:78436f4486d2 63 #if defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
CKMonroe 0:78436f4486d2 64 PinName const SDA = PTE25;
CKMonroe 0:78436f4486d2 65 PinName const SCL = PTE24;
CKMonroe 0:78436f4486d2 66 #elif defined (TARGET_KL05Z)
CKMonroe 0:78436f4486d2 67 PinName const SDA = PTB4;
CKMonroe 0:78436f4486d2 68 PinName const SCL = PTB3;
CKMonroe 0:78436f4486d2 69 #else
CKMonroe 0:78436f4486d2 70 #error TARGET NOT DEFINED
CKMonroe 0:78436f4486d2 71 #endif
CKMonroe 0:78436f4486d2 72
CKMonroe 0:78436f4486d2 73 #define MMA8451_I2C_ADDRESS (0x1d<<1)
CKMonroe 0:78436f4486d2 74
CKMonroe 0:78436f4486d2 75 Ticker ledBlink; // timinginterrupt for RED led
CKMonroe 0:78436f4486d2 76 InterruptIn MMA8451QInt1(PTC5); //push botton with internal pullup
CKMonroe 0:78436f4486d2 77 DigitalOut myled(LED_RED); // red led
CKMonroe 0:78436f4486d2 78 DigitalOut relay(LED_GREEN); // green led
CKMonroe 0:78436f4486d2 79
CKMonroe 0:78436f4486d2 80 //CKM- added serial pc object to print to terminal
CKMonroe 0:78436f4486d2 81 Serial pc(USBTX, USBRX);
CKMonroe 0:78436f4486d2 82
CKMonroe 0:78436f4486d2 83 MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
CKMonroe 0:78436f4486d2 84
CKMonroe 0:78436f4486d2 85 float delay = WAITDELAY;
CKMonroe 0:78436f4486d2 86 int relayState = RELAYOFF;
CKMonroe 0:78436f4486d2 87 int outState = false;
CKMonroe 0:78436f4486d2 88 SLCD slcd; //define LCD display
CKMonroe 0:78436f4486d2 89 char LCDMessages[2][LCDLEN] = {"TRUE", "FALS"};
CKMonroe 0:78436f4486d2 90
CKMonroe 0:78436f4486d2 91
CKMonroe 0:78436f4486d2 92 void LCDMess(char *lMess, float dWait){
CKMonroe 0:78436f4486d2 93 slcd.Home();
CKMonroe 0:78436f4486d2 94 slcd.clear();
CKMonroe 0:78436f4486d2 95 slcd.printf(lMess);
CKMonroe 0:78436f4486d2 96 wait(dWait);
CKMonroe 0:78436f4486d2 97 }
CKMonroe 0:78436f4486d2 98 void LCDMessNoDwell(char *lMess){
CKMonroe 0:78436f4486d2 99 slcd.Home();
CKMonroe 0:78436f4486d2 100 slcd.clear();
CKMonroe 0:78436f4486d2 101 slcd.printf(lMess);
CKMonroe 0:78436f4486d2 102 }
CKMonroe 0:78436f4486d2 103
CKMonroe 0:78436f4486d2 104 // Interrupt routines
CKMonroe 0:78436f4486d2 105 void LEDBlinker(){ // RED LED interrupt
CKMonroe 0:78436f4486d2 106 outState = !outState;
CKMonroe 0:78436f4486d2 107 myled.write(outState);
CKMonroe 0:78436f4486d2 108 }
CKMonroe 0:78436f4486d2 109
CKMonroe 0:78436f4486d2 110 void GreenLEDBlinker(){ // Green LED interrupt
CKMonroe 0:78436f4486d2 111 //uint8_t i_regData;
CKMonroe 0:78436f4486d2 112 relayState = !relayState;
CKMonroe 0:78436f4486d2 113 relay.write(relayState);
CKMonroe 0:78436f4486d2 114 //acc.readRegs(REG_PULSE_SRC, &i_regData, 1); // Clear the tap event
CKMonroe 0:78436f4486d2 115 }
CKMonroe 0:78436f4486d2 116
CKMonroe 0:78436f4486d2 117 // end interrupt routines
CKMonroe 0:78436f4486d2 118
CKMonroe 0:78436f4486d2 119 int main()
CKMonroe 0:78436f4486d2 120 {
CKMonroe 0:78436f4486d2 121 uint8_t regData;
CKMonroe 0:78436f4486d2 122 uint8_t latchData = 0x40; //0b01000000; //for pulse config register
CKMonroe 0:78436f4486d2 123 //uint8_t axisData = 0x10; //0b00010000;
CKMonroe 0:78436f4486d2 124
CKMonroe 0:78436f4486d2 125 //CKM- changed this to 0x20- 0b00100000,
CKMonroe 0:78436f4486d2 126 //to register the axis as a double Z tap only
CKMonroe 0:78436f4486d2 127 uint8_t axisData = 0x20;//
CKMonroe 0:78436f4486d2 128
CKMonroe 0:78436f4486d2 129 char lcdData[LCDLEN];
CKMonroe 0:78436f4486d2 130
CKMonroe 0:78436f4486d2 131 myled.write(outState);
CKMonroe 0:78436f4486d2 132 relay.write(relayState);
CKMonroe 0:78436f4486d2 133
CKMonroe 0:78436f4486d2 134 // set up interrrupts to be used later for taps
CKMonroe 0:78436f4486d2 135 MMA8451QInt1.rise(&GreenLEDBlinker);
CKMonroe 0:78436f4486d2 136 MMA8451QInt1.mode(PullNone);
CKMonroe 0:78436f4486d2 137
CKMonroe 0:78436f4486d2 138 // set up interrrupts to be used later for taps
CKMonroe 0:78436f4486d2 139 ledBlink.attach(&LEDBlinker, LEDDELAY);
CKMonroe 0:78436f4486d2 140
CKMonroe 0:78436f4486d2 141 // Read Pulse Source Data and check to see if things have been set
CKMonroe 0:78436f4486d2 142 acc.readRegs(REG_PULSE_CFG, &regData, 1); // check it
CKMonroe 0:78436f4486d2 143 sprintf (lcdData,"%x",regData);
CKMonroe 0:78436f4486d2 144
CKMonroe 0:78436f4486d2 145 //CKM: print to terminal////////////////////////
CKMonroe 0:78436f4486d2 146 pc.printf("reg Data: ",regData);
CKMonroe 0:78436f4486d2 147
CKMonroe 0:78436f4486d2 148 LCDMess(lcdData,BLINKTIME);
CKMonroe 0:78436f4486d2 149
CKMonroe 0:78436f4486d2 150 // *********** Initialize for tap tecognition ***********
CKMonroe 0:78436f4486d2 151 regData = latchData | axisData;
CKMonroe 0:78436f4486d2 152 acc.setRegisterInStandby(REG_PULSE_CFG, regData); // write the data
CKMonroe 0:78436f4486d2 153 acc.readRegs(REG_PULSE_CFG, &regData, 1); // check it
CKMonroe 0:78436f4486d2 154 sprintf (lcdData,"%x",regData);
CKMonroe 0:78436f4486d2 155
CKMonroe 0:78436f4486d2 156 //CKM: print to terminal//////////////////////
CKMonroe 0:78436f4486d2 157 pc.printf("reg Data: ",regData);
CKMonroe 0:78436f4486d2 158
CKMonroe 0:78436f4486d2 159 LCDMess(lcdData,BLINKTIME);
CKMonroe 0:78436f4486d2 160
CKMonroe 0:78436f4486d2 161 // Check to see if accerlometer is alive and well
CKMonroe 0:78436f4486d2 162 acc.setGLimit(MAX_4G); // For now set to 2g
CKMonroe 0:78436f4486d2 163 acc.readRegs(XYZ_DATA_CFG, &regData, 1);
CKMonroe 0:78436f4486d2 164 sprintf (lcdData,"%x",regData); // Note displaying in hexidecimal
CKMonroe 0:78436f4486d2 165
CKMonroe 0:78436f4486d2 166 //CKM: print to terminal/////////////////
CKMonroe 0:78436f4486d2 167 pc.printf("reg Data: ",regData);
CKMonroe 0:78436f4486d2 168
CKMonroe 0:78436f4486d2 169 LCDMess(lcdData,BLINKTIME);
CKMonroe 0:78436f4486d2 170
CKMonroe 0:78436f4486d2 171 //CKM: added this line of code to set the KL into 400Hz mode
CKMonroe 0:78436f4486d2 172 acc.setRegisterInStandby(REG_CTRL_REG_1, (REG_CTRL_REG_1 | HZ_MASK) );
CKMonroe 0:78436f4486d2 173
CKMonroe 0:78436f4486d2 174 // Setup single-tap pulse prarameters.
CKMonroe 0:78436f4486d2 175 acc.setRegisterInStandby(REG_PULSE_THSZ, SET_THZ); // write the data
CKMonroe 0:78436f4486d2 176 acc.setRegisterInStandby(REH_PULSE_TMLT, SET_TMLT); // write the data
CKMonroe 0:78436f4486d2 177
CKMonroe 0:78436f4486d2 178 // Set up (pulse) interrupt to INT1 pin
CKMonroe 0:78436f4486d2 179 acc.setRegisterInStandby(REG_CTRL_4, SET_INTERRUPT); // write the data
CKMonroe 0:78436f4486d2 180 acc.setRegisterInStandby(REG_CTRL_5, SET_INT_LINE); // write the data
CKMonroe 0:78436f4486d2 181 // End or seetup
CKMonroe 0:78436f4486d2 182
CKMonroe 0:78436f4486d2 183 acc.readRegs(REG_WHO_AM_I, &regData, 1);
CKMonroe 0:78436f4486d2 184 sprintf (lcdData,"%x",regData);
CKMonroe 0:78436f4486d2 185
CKMonroe 0:78436f4486d2 186 //CKM: print to terminal///////////////////
CKMonroe 0:78436f4486d2 187 pc.printf("reg Data: ",regData);
CKMonroe 0:78436f4486d2 188
CKMonroe 0:78436f4486d2 189 LCDMess(lcdData,BLINKTIME);
CKMonroe 0:78436f4486d2 190
CKMonroe 0:78436f4486d2 191
CKMonroe 0:78436f4486d2 192 while (true) {
CKMonroe 0:78436f4486d2 193 acc.readRegs(REG_PULSE_SRC, &regData, 1);
CKMonroe 0:78436f4486d2 194 sprintf (lcdData,"%x",regData);
CKMonroe 0:78436f4486d2 195
CKMonroe 0:78436f4486d2 196 //CKM: print to terminal////////////////////
CKMonroe 0:78436f4486d2 197 pc.printf("reg Data: ",regData);
CKMonroe 0:78436f4486d2 198
CKMonroe 0:78436f4486d2 199 LCDMess(lcdData,BLINKTIME);
CKMonroe 0:78436f4486d2 200 LCDMessNoDwell(LCDMessages[relayState]);
CKMonroe 0:78436f4486d2 201 wait(delay);
CKMonroe 0:78436f4486d2 202 }
CKMonroe 0:78436f4486d2 203 }