Colin Monroe
attempt at pt 2 of the midterm
Dependencies: MMA8451Q8b SLCD mbed
Revision 0:78436f4486d2, committed 2017-03-15
- Comitter:
- CKMonroe
- Date:
- Wed Mar 15 05:34:55 2017 +0000
- Commit message:
- 1
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/KL46z_single_tap_2016..cpp Wed Mar 15 05:34:55 2017 +0000
@@ -0,0 +1,203 @@
+#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
+//CKM- changed this to 0x38 to try to set
+//transient tap detection limit to 35ms
+#define REH_PULSE_TMLT 0x38
+
+#define REG_CTRL_4 0x2D
+#define REG_CTRL_5 0x2E
+
+#define MAX_2G 0x00
+#define MAX_4G 0x01
+#define MAX_8G 0x02
+
+//CKM- leaving set_interrupt to change the pin to enable interrupts,
+//but changing the interrupt line to INT2
+#define SET_INTERRUPT 0x08
+//#define SET_INT_LINE 0x08
+#define SET_INT_LINE 0x2E&0xF7
+
+//#define SET_THZ 0x20 // See Table 49 in data sheet
+//CKM- changed this to 40 counts,
+//which is 0x28 in hex
+#define SET_THZ 0x28
+
+//CKM- adding another define for the 400Hz mask
+#define HZ_MASK 0x08
+#define REG_CTRL_REG_1 0x2A
+
+/***********
+0b0010 0000
+2g/0.063g/count = 32 counts
+************/
+#define SET_TMLT 0x18 // See Talbe 51 in data sheet
+/******
+0b0001 1000
+24 = 0x18
+time step at 800Hz ODR = 0.625ms
+24x0.625 = 15 ms
+******/
+
+//#define PRINTDBUG
+// Accelerometer SPI 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
+DigitalOut myled(LED_RED); // red led
+DigitalOut relay(LED_GREEN); // green led
+
+//CKM- added serial pc object to print to terminal
+Serial pc(USBTX, USBRX);
+
+ 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;
+ uint8_t latchData = 0x40; //0b01000000; //for pulse config register
+ //uint8_t axisData = 0x10; //0b00010000;
+
+ //CKM- changed this to 0x20- 0b00100000,
+ //to register the axis as a double Z tap only
+ uint8_t axisData = 0x20;//
+
+ 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);
+
+ //CKM: print to terminal////////////////////////
+ pc.printf("reg Data: ",regData);
+
+ LCDMess(lcdData,BLINKTIME);
+
+// *********** Initialize for tap tecognition ***********
+ regData = latchData | axisData;
+ acc.setRegisterInStandby(REG_PULSE_CFG, regData); // write the data
+ acc.readRegs(REG_PULSE_CFG, ®Data, 1); // check it
+ sprintf (lcdData,"%x",regData);
+
+ //CKM: print to terminal//////////////////////
+ pc.printf("reg Data: ",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
+
+ //CKM: print to terminal/////////////////
+ pc.printf("reg Data: ",regData);
+
+ LCDMess(lcdData,BLINKTIME);
+
+ //CKM: added this line of code to set the KL into 400Hz mode
+ acc.setRegisterInStandby(REG_CTRL_REG_1, (REG_CTRL_REG_1 | HZ_MASK) );
+
+// 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);
+
+ //CKM: print to terminal///////////////////
+ pc.printf("reg Data: ",regData);
+
+ LCDMess(lcdData,BLINKTIME);
+
+
+ while (true) {
+ acc.readRegs(REG_PULSE_SRC, ®Data, 1);
+ sprintf (lcdData,"%x",regData);
+
+ //CKM: print to terminal////////////////////
+ pc.printf("reg Data: ",regData);
+
+ LCDMess(lcdData,BLINKTIME);
+ LCDMessNoDwell(LCDMessages[relayState]);
+ wait(delay);
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MMA8451Q8g.lib Wed Mar 15 05:34:55 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/scohennm/code/MMA8451Q8b/#12b18fdb72f7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SLCD.lib Wed Mar 15 05:34:55 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/SLCD/#ef2b3b7f1b01
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Mar 15 05:34:55 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/04dd9b1680ae \ No newline at end of file