![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Blank parameters for midterm
Dependencies: MMA8451Q8b SLCD mbed
Diff: KL46z_single_tap_2017.cpp
- Revision:
- 12:10e6d0d12833
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/KL46z_single_tap_2017.cpp Thu Mar 09 02:37:39 2017 +0000 @@ -0,0 +1,154 @@ +#include "mbed.h" +#include "MMA8451Q8g.h" +#include "SLCD.h" + +#define BLINKTIME 1.5 +#define RELAYON 0 +#define RELAYOFF 1 +#define LEDDELAY 0.4 +#define WAITDELAY 0.7 +#define LCDLEN 10 + +#define REG_WHO_AM_I 0x0D +#define XYZ_DATA_CFG 0x0E + +#define REG_OUT_X_MSB 0x01 +#define REG_OUT_Y_MSB 0x03 +#define REG_OUT_Z_MSB 0x05 +#define REG_PULSE_CFG 0x21 +#define REG_PULSE_SRC 0x22 +#define REG_PULSE_THSZ 0x25 +#define REH_PULSE_TMLT 0x26 +#define REG_CTRL_4 0x2D +#define REG_CTRL_5 0x2E + +#define MAX_2G 0x00 +#define MAX_4G 0x01 +#define MAX_8G 0x02 +/************************************** +You need to fill nn the missing numbers below for this to work +0x00 is just a place holder +*************************************/ +#define LATCH_DATA 0x00 // for use in REG_PULSE_CFG +#define AXIS_DATA 0x00 +#define SET_INTERRUPT 0x00 //using interrupt INT1 PTC5 +#define SET_INT_LINE 0x00 + +#define SET_THZ 0x00 // See Table 49 in data sheet + +#define SET_TMLT 0x00 // See Table 51 in data sheet +/*********************************************************/ + +//#define PRINTDBUG +// Accelerometer I2C pins +#if defined (TARGET_KL25Z) || defined (TARGET_KL46Z) + PinName const SDA = PTE25; + PinName const SCL = PTE24; +#elif defined (TARGET_KL05Z) + PinName const SDA = PTB4; + PinName const SCL = PTB3; +#else + #error TARGET NOT DEFINED +#endif + +#define MMA8451_I2C_ADDRESS (0x1d<<1) + +Ticker ledBlink; // timinginterrupt for RED led +InterruptIn MMA8451QInt1(PTC5); //push botton with internal pullup +//InterruptIn MMA8451QInt1(PTD1); +DigitalOut myled(LED_RED); // red led +DigitalOut relay(LED_GREEN); // green led + + MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS); + +float delay = WAITDELAY; +int relayState = RELAYOFF; +int outState = false; +SLCD slcd; //define LCD display +char LCDMessages[2][LCDLEN] = {"TRUE", "FALS"}; + + +void LCDMess(char *lMess, float dWait){ + slcd.Home(); + slcd.clear(); + slcd.printf(lMess); + wait(dWait); +} +void LCDMessNoDwell(char *lMess){ + slcd.Home(); + slcd.clear(); + slcd.printf(lMess); +} + +// Interrupt routines +void LEDBlinker(){ // RED LED interrupt + outState = !outState; + myled.write(outState); +} + +void GreenLEDBlinker(){ // Green LED interrupt + //uint8_t i_regData; + relayState = !relayState; + relay.write(relayState); + //acc.readRegs(REG_PULSE_SRC, &i_regData, 1); // Clear the tap event +} + +// end interrupt routines + +int main() +{ + uint8_t regData; + + + char lcdData[LCDLEN]; + + myled.write(outState); + relay.write(relayState); + +// set up interrrupts to be used later for taps + MMA8451QInt1.rise(&GreenLEDBlinker); + MMA8451QInt1.mode(PullNone); + +// set up interrrupts to be used later for taps + ledBlink.attach(&LEDBlinker, LEDDELAY); + +// Read Pulse Source Data and check to see if things have been set + acc.readRegs(REG_PULSE_CFG, ®Data, 1); // check it + sprintf (lcdData,"%x",regData); + LCDMess(lcdData,BLINKTIME); + +// *********** Initialize for tap tecognition *********** + regData = LATCH_DATA | AXIS_DATA; + acc.setRegisterInStandby(REG_PULSE_CFG, regData); // write the data + acc.readRegs(REG_PULSE_CFG, ®Data, 1); // check it + sprintf (lcdData,"%x",regData); + LCDMess(lcdData,BLINKTIME); + +// Check to see if accerlometer is alive and well + acc.setGLimit(MAX_4G); // For now set to 2g + acc.readRegs(XYZ_DATA_CFG, ®Data, 1); + sprintf (lcdData,"%x",regData); // Note displaying in hexidecimal + LCDMess(lcdData,BLINKTIME); + +// Setup single-tap pulse prarameters. + acc.setRegisterInStandby(REG_PULSE_THSZ, SET_THZ); // write the data + acc.setRegisterInStandby(REH_PULSE_TMLT, SET_TMLT); // write the data + +// Set up (pulse) interrupt to INT1 pin + acc.setRegisterInStandby(REG_CTRL_4, SET_INTERRUPT); // write the data + acc.setRegisterInStandby(REG_CTRL_5, SET_INT_LINE); // write the data +// End or seetup + + acc.readRegs(REG_WHO_AM_I, ®Data, 1); + sprintf (lcdData,"%x",regData); + LCDMess(lcdData,BLINKTIME); + + + while (true) { + acc.readRegs(REG_PULSE_SRC, ®Data, 1); + sprintf (lcdData,"%x",regData); + LCDMess(lcdData,BLINKTIME); + LCDMessNoDwell(LCDMessages[relayState]); + wait(delay); + } +} \ No newline at end of file