![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
This project serves as a template for work with the Freescale FRDM-KL46 board. Support will be added to all on-board peripherals, sensors and I/O.
Dependencies: FRDM_MMA8451Q MAG3110 TSI mbed
Fork of FRDM-KL46-Template by
Project Information:
Theory
This project has been created to serve as a template for those who wish to use the Freescale Freedom FRDM-KL46Z board. Existing drivers within mbed have been brought together and board specific configurations for certain inputs and outputs have included.
Libraries
- TSI (source: http://mbed.org/users/emilmont/code/TSI/ ) Capacitive Touch library to support the on-board Touch-Slider
- FRDM_MMA8451Q (source: http://mbed.org/users/clemente/code/FRDM_MMA8451Q/ ) Freescale MMA8451 Accelerometer connected on I2C0
- MAG3110 (source: http://mbed.org/users/mmaas/code/MAG3110/) (based on: http://mbed.org/users/SomeRandomBloke/code/MAG3110/)
TODOs
- Add support for Segment LCD - intend to use driver in example code: http://cache.freescale.com/files/32bit/software/KL46_SC.exe
Hardware Information:
FRDM-KL46Z Information
- User Guide Guide: http://cache.freescale.com/files/microcontrollers/doc/user_guide/FRDM-KL46Z_UM.pdf
- Schematics: http://cache.freescale.com/files/microcontrollers/hardware_tools/schematics/FRDM-KL46Z_SCH.pdf
Freescale Kinetis L-Series Microcontroller Information
- Kinetis KL46 Drop Page: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=KL4x
- Kinetis KL46 Fact Sheet: http://cache.freescale.com/files/microcontrollers/doc/fact_sheet/LSERIESKL4FS.pdf
- Kinetis KL46 Reference Manual: http://cache.freescale.com/files/microcontrollers/doc/ref_manual/KL46P121M48SF4RM.pdf
- Kinetis KL46 Data Sheet: http://cache.freescale.com/files/microcontrollers/doc/data_sheet/KL46P121M48SF4.pdf
Freescale Sensor Information
MMA8451Q
MAG3110
main.cpp@3:1e85b49a3e18, 2013-12-19 (annotated)
- Committer:
- mmaas
- Date:
- Thu Dec 19 20:05:17 2013 +0000
- Revision:
- 3:1e85b49a3e18
- Parent:
- 2:48ac01f5024d
- Child:
- 4:6cb640167538
Added support for MMA8451Q and MAG3110 with calibration function.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mmaas | 0:79ae6809c2d0 | 1 | #include "mbed.h" |
mmaas | 3:1e85b49a3e18 | 2 | #include "MMA8451Q.h" |
mmaas | 3:1e85b49a3e18 | 3 | #include "MAG3110.h" |
mmaas | 0:79ae6809c2d0 | 4 | |
mmaas | 3:1e85b49a3e18 | 5 | |
mmaas | 3:1e85b49a3e18 | 6 | // This project has been created to bring together the libraries required to support |
mmaas | 3:1e85b49a3e18 | 7 | // the hardware and sensors found on the Freescale FRDM-KL46Z board. The following |
mmaas | 3:1e85b49a3e18 | 8 | // libraries are included and exercised in this project: |
mmaas | 3:1e85b49a3e18 | 9 | // |
mmaas | 3:1e85b49a3e18 | 10 | // mbed (source: official mbed library) |
mmaas | 3:1e85b49a3e18 | 11 | // Serial: |
mmaas | 3:1e85b49a3e18 | 12 | // Serial console routed through the mbed interface |
mmaas | 3:1e85b49a3e18 | 13 | // PTA2 / UART0_TX = TX Signal - also on Arduino pin D1 |
mmaas | 3:1e85b49a3e18 | 14 | // PTA1 / UART0_RX = RX Signal - also on Arduino pin D0 |
mmaas | 3:1e85b49a3e18 | 15 | // |
mmaas | 3:1e85b49a3e18 | 16 | // DigitalOut: |
mmaas | 3:1e85b49a3e18 | 17 | // GPIO to drive onboard LEDs |
mmaas | 3:1e85b49a3e18 | 18 | // PTD5 / GPIO = LED1 - drive low to turn on LED - also on Arduino pin D13 |
mmaas | 3:1e85b49a3e18 | 19 | // PTE29 / GPIO = LED2 - drive low to turn on LED |
mmaas | 3:1e85b49a3e18 | 20 | // |
mmaas | 3:1e85b49a3e18 | 21 | // DigitalIn: |
mmaas | 3:1e85b49a3e18 | 22 | // GPIO to monitor the two onboard push buttons |
mmaas | 3:1e85b49a3e18 | 23 | // PTC3 / GPIO = SW1 - low input = button pressed |
mmaas | 3:1e85b49a3e18 | 24 | // PTC12 / GPIO = SW3 - low input = button pressed |
mmaas | 3:1e85b49a3e18 | 25 | // |
mmaas | 3:1e85b49a3e18 | 26 | // TSI (source: http://mbed.org/users/emilmont/code/TSI/ ) |
mmaas | 3:1e85b49a3e18 | 27 | // Capacitive Touch library to support the onboard Touch-Slider |
mmaas | 3:1e85b49a3e18 | 28 | // |
mmaas | 3:1e85b49a3e18 | 29 | // FRDM_MMA8451Q (source: http://mbed.org/users/clemente/code/FRDM_MMA8451Q/ ) |
mmaas | 3:1e85b49a3e18 | 30 | // Freescale MMA8451 Accelerometer connected on I2C0 |
mmaas | 3:1e85b49a3e18 | 31 | // PTE24 / I2C0_SCL = I2C bus for communication (shared with MAG3110) |
mmaas | 3:1e85b49a3e18 | 32 | // PTE25 / I2C0_SDA = I2C bus for communication (shared with MAG3110) |
mmaas | 3:1e85b49a3e18 | 33 | // PTC5 / INT1_ACCEL = INT1 output of MMA8451Q |
mmaas | 3:1e85b49a3e18 | 34 | // PTD1 / INT2_ACCEL = INT2 output of MMA8451Q (shared with MAG3110) |
mmaas | 3:1e85b49a3e18 | 35 | // |
mmaas | 3:1e85b49a3e18 | 36 | // MAG3110 |
mmaas | 3:1e85b49a3e18 | 37 | // Freescale MAG3110 Magnetomoter connected on I2C0 |
mmaas | 3:1e85b49a3e18 | 38 | // PTE24 / I2C0_SCL = I2C bus for communication (shared with MMA8451) |
mmaas | 3:1e85b49a3e18 | 39 | // PTE25 / I2C0_SDA = I2C bus for communication (shared with MMA8451) |
mmaas | 3:1e85b49a3e18 | 40 | // PTD1 / INT1_MAG / INT2_ACCEL = INT1 output of MAG3110 (shared with MMA8451) |
mmaas | 3:1e85b49a3e18 | 41 | // |
mmaas | 3:1e85b49a3e18 | 42 | // FRDM_LightSensor |
mmaas | 3:1e85b49a3e18 | 43 | // Ambient light sensor (Q1) |
mmaas | 3:1e85b49a3e18 | 44 | // PTE22 / ADC |
mmaas | 3:1e85b49a3e18 | 45 | // |
mmaas | 3:1e85b49a3e18 | 46 | // FRDM_LCD |
mmaas | 3:1e85b49a3e18 | 47 | // 4 Digit Segment LCD |
mmaas | 3:1e85b49a3e18 | 48 | // TempSensor - KL46 |
mmaas | 3:1e85b49a3e18 | 49 | |
mmaas | 3:1e85b49a3e18 | 50 | |
mmaas | 3:1e85b49a3e18 | 51 | ////////////////////////////////////////////////////////////////////// |
mmaas | 1:28c81db67f50 | 52 | // Include support for USB Serial console |
mmaas | 0:79ae6809c2d0 | 53 | Serial pc(USBTX, USBRX); |
mmaas | 0:79ae6809c2d0 | 54 | |
mmaas | 3:1e85b49a3e18 | 55 | |
mmaas | 3:1e85b49a3e18 | 56 | ////////////////////////////////////////////////////////////////////// |
mmaas | 1:28c81db67f50 | 57 | // Include support for on-board green and red LEDs |
mmaas | 3:1e85b49a3e18 | 58 | #define LED_ON 0 |
mmaas | 3:1e85b49a3e18 | 59 | #define LED_OFF 1 |
mmaas | 2:48ac01f5024d | 60 | DigitalOut greenLED(LED_GREEN); |
mmaas | 1:28c81db67f50 | 61 | DigitalOut redLED(LED_RED); |
mmaas | 1:28c81db67f50 | 62 | |
mmaas | 3:1e85b49a3e18 | 63 | |
mmaas | 3:1e85b49a3e18 | 64 | ////////////////////////////////////////////////////////////////////// |
mmaas | 3:1e85b49a3e18 | 65 | // Include support for onboard pushbuttons |
mmaas | 3:1e85b49a3e18 | 66 | DigitalIn sw1(PTC3); |
mmaas | 3:1e85b49a3e18 | 67 | DigitalIn sw3(PTC12); |
mmaas | 3:1e85b49a3e18 | 68 | |
mmaas | 0:79ae6809c2d0 | 69 | |
mmaas | 3:1e85b49a3e18 | 70 | ///////////////////////////////////////////////////////////////////// |
mmaas | 3:1e85b49a3e18 | 71 | // Include support for MMA8451Q Acceleromoter |
mmaas | 3:1e85b49a3e18 | 72 | #define MMA8451_I2C_ADDRESS (0x1d<<1) |
mmaas | 3:1e85b49a3e18 | 73 | MMA8451Q acc(PTE25, PTE24, MMA8451_I2C_ADDRESS); |
mmaas | 3:1e85b49a3e18 | 74 | |
mmaas | 3:1e85b49a3e18 | 75 | |
mmaas | 3:1e85b49a3e18 | 76 | ///////////////////////////////////////////////////////////////////// |
mmaas | 3:1e85b49a3e18 | 77 | // Include support for MAG3110 Magnetometer |
mmaas | 3:1e85b49a3e18 | 78 | void calXY(); //magnetometer calibration: finding max and min of X, Y axis |
mmaas | 3:1e85b49a3e18 | 79 | MAG3110 mag(PTE25, PTE24); |
mmaas | 3:1e85b49a3e18 | 80 | |
mmaas | 3:1e85b49a3e18 | 81 | |
mmaas | 3:1e85b49a3e18 | 82 | |
mmaas | 3:1e85b49a3e18 | 83 | int main() |
mmaas | 3:1e85b49a3e18 | 84 | { |
mmaas | 0:79ae6809c2d0 | 85 | |
mmaas | 1:28c81db67f50 | 86 | // Ensure LEDs are off |
mmaas | 2:48ac01f5024d | 87 | greenLED = LED_OFF; |
mmaas | 1:28c81db67f50 | 88 | redLED = LED_OFF; |
mmaas | 3:1e85b49a3e18 | 89 | |
mmaas | 0:79ae6809c2d0 | 90 | // Set Serial Port data rate and say Hello |
mmaas | 0:79ae6809c2d0 | 91 | pc.baud( 230400 ); |
mmaas | 0:79ae6809c2d0 | 92 | pc.printf("Hello World\r\n"); |
mmaas | 0:79ae6809c2d0 | 93 | |
mmaas | 3:1e85b49a3e18 | 94 | // Turn on pull up resistors on pushbutton inputs |
mmaas | 3:1e85b49a3e18 | 95 | sw1.mode(PullUp); |
mmaas | 3:1e85b49a3e18 | 96 | sw3.mode(PullUp); |
mmaas | 3:1e85b49a3e18 | 97 | |
mmaas | 2:48ac01f5024d | 98 | // Quick blink LEDs |
mmaas | 2:48ac01f5024d | 99 | redLED = LED_ON; |
mmaas | 2:48ac01f5024d | 100 | wait(.05); |
mmaas | 2:48ac01f5024d | 101 | greenLED = LED_ON; |
mmaas | 2:48ac01f5024d | 102 | wait(.05); |
mmaas | 2:48ac01f5024d | 103 | greenLED = LED_OFF; |
mmaas | 2:48ac01f5024d | 104 | redLED = LED_OFF; |
mmaas | 3:1e85b49a3e18 | 105 | |
mmaas | 2:48ac01f5024d | 106 | wait(1); |
mmaas | 2:48ac01f5024d | 107 | |
mmaas | 3:1e85b49a3e18 | 108 | |
mmaas | 3:1e85b49a3e18 | 109 | // Get some values |
mmaas | 3:1e85b49a3e18 | 110 | printf("DR_STATUS %X\r\n", mag.readReg( MAG_DR_STATUS )); |
mmaas | 3:1e85b49a3e18 | 111 | printf("WHO_AM_I %X\r\n", mag.readReg( MAG_WHO_AM_I )); |
mmaas | 3:1e85b49a3e18 | 112 | printf("SYSMOD %X\r\n", mag.readReg( MAG_SYSMOD )); |
mmaas | 3:1e85b49a3e18 | 113 | printf("DIE_TEMP %d\r\n", mag.readReg( MAG_DIE_TEMP )); |
mmaas | 3:1e85b49a3e18 | 114 | |
mmaas | 3:1e85b49a3e18 | 115 | printf("OFF_X %d\r\n", mag.readVal( MAG_OFF_X_MSB )); |
mmaas | 3:1e85b49a3e18 | 116 | printf("OFF_Y %d\r\n", mag.readVal( MAG_OFF_Y_MSB )); |
mmaas | 3:1e85b49a3e18 | 117 | printf("OFF_Z %d\r\n", mag.readVal( MAG_OFF_Z_MSB )); |
mmaas | 3:1e85b49a3e18 | 118 | |
mmaas | 3:1e85b49a3e18 | 119 | printf("CTRL_REG1 %X\r\n", mag.readReg( MAG_CTRL_REG1 )); |
mmaas | 3:1e85b49a3e18 | 120 | printf("CTRL_REG2 %X\r\n", mag.readReg( MAG_CTRL_REG2 )); |
mmaas | 2:48ac01f5024d | 121 | |
mmaas | 2:48ac01f5024d | 122 | |
mmaas | 3:1e85b49a3e18 | 123 | // Calibrate the magnetomoter |
mmaas | 3:1e85b49a3e18 | 124 | calXY(); |
mmaas | 3:1e85b49a3e18 | 125 | |
mmaas | 3:1e85b49a3e18 | 126 | |
mmaas | 3:1e85b49a3e18 | 127 | // Loop: Blink LEDs, report pushbutton status, mag data, accel data |
mmaas | 0:79ae6809c2d0 | 128 | while(1) { |
mmaas | 3:1e85b49a3e18 | 129 | |
mmaas | 3:1e85b49a3e18 | 130 | // Get Magnetometer data |
mmaas | 3:1e85b49a3e18 | 131 | int xVal = mag.readVal(MAG_OUT_X_MSB); |
mmaas | 3:1e85b49a3e18 | 132 | int yVal = mag.readVal(MAG_OUT_Y_MSB); |
mmaas | 3:1e85b49a3e18 | 133 | float heading = mag.getHeading(); |
mmaas | 3:1e85b49a3e18 | 134 | |
mmaas | 3:1e85b49a3e18 | 135 | // Do something with heading - display direction |
mmaas | 3:1e85b49a3e18 | 136 | printf("Heading: "); |
mmaas | 3:1e85b49a3e18 | 137 | if (abs(heading) <= 22.5) printf("N "); |
mmaas | 3:1e85b49a3e18 | 138 | if (abs(heading) >= 157.5) printf("S "); |
mmaas | 3:1e85b49a3e18 | 139 | if (heading >= 67.5 && heading <= 112.5) printf("E "); |
mmaas | 3:1e85b49a3e18 | 140 | if (heading <= -67.5 && heading >= -112.5) printf("W "); |
mmaas | 3:1e85b49a3e18 | 141 | if (heading > 22.5 && heading < 67.5) printf("NE "); |
mmaas | 3:1e85b49a3e18 | 142 | if (heading < -22.5 && heading > -67.5) printf("NW "); |
mmaas | 3:1e85b49a3e18 | 143 | if (heading > 112.5 && heading < 157.5) printf("SE "); |
mmaas | 3:1e85b49a3e18 | 144 | if (heading < -112.5 && heading > -157.5) printf("SW "); |
mmaas | 3:1e85b49a3e18 | 145 | if (heading < 0) heading += 360.0; |
mmaas | 3:1e85b49a3e18 | 146 | printf("%f\r\n", heading); |
mmaas | 3:1e85b49a3e18 | 147 | |
mmaas | 3:1e85b49a3e18 | 148 | |
mmaas | 2:48ac01f5024d | 149 | greenLED = LED_ON; |
mmaas | 1:28c81db67f50 | 150 | redLED = LED_OFF; |
mmaas | 3:1e85b49a3e18 | 151 | |
mmaas | 3:1e85b49a3e18 | 152 | printf("SW1 = %d, SW3 = %d, X = %f, Y = %f, Z = %f\r\n\n", sw1.read(), sw3.read(), acc.getAccX(), acc.getAccY(), acc.getAccZ()); |
mmaas | 3:1e85b49a3e18 | 153 | wait(0.25); |
mmaas | 3:1e85b49a3e18 | 154 | |
mmaas | 2:48ac01f5024d | 155 | greenLED = LED_OFF; |
mmaas | 1:28c81db67f50 | 156 | redLED = LED_ON; |
mmaas | 1:28c81db67f50 | 157 | |
mmaas | 3:1e85b49a3e18 | 158 | wait(0.25); |
mmaas | 1:28c81db67f50 | 159 | |
mmaas | 0:79ae6809c2d0 | 160 | } |
mmaas | 0:79ae6809c2d0 | 161 | } |
mmaas | 3:1e85b49a3e18 | 162 | |
mmaas | 3:1e85b49a3e18 | 163 | |
mmaas | 3:1e85b49a3e18 | 164 | void calXY() //magnetometer calibration: finding max and min of X, Y axis |
mmaas | 3:1e85b49a3e18 | 165 | { |
mmaas | 3:1e85b49a3e18 | 166 | int tempXmax, tempXmin, tempYmax, tempYmin, newX, newY; |
mmaas | 3:1e85b49a3e18 | 167 | |
mmaas | 3:1e85b49a3e18 | 168 | |
mmaas | 3:1e85b49a3e18 | 169 | printf("Press and release SW1 to Initiate Mag Calibration\r\n"); |
mmaas | 3:1e85b49a3e18 | 170 | // Wait for SW1 press and release |
mmaas | 3:1e85b49a3e18 | 171 | while( sw1 == 1 ) { |
mmaas | 3:1e85b49a3e18 | 172 | } |
mmaas | 3:1e85b49a3e18 | 173 | while( sw1 == 0 ) { |
mmaas | 3:1e85b49a3e18 | 174 | } |
mmaas | 3:1e85b49a3e18 | 175 | |
mmaas | 3:1e85b49a3e18 | 176 | printf("Rotate the board 360 degrees on a level plane then press and release SW1\r\n"); |
mmaas | 3:1e85b49a3e18 | 177 | |
mmaas | 3:1e85b49a3e18 | 178 | tempXmax = tempXmin = mag.readVal(MAG_OUT_X_MSB); |
mmaas | 3:1e85b49a3e18 | 179 | tempYmax = tempYmin = mag.readVal(MAG_OUT_Y_MSB); |
mmaas | 3:1e85b49a3e18 | 180 | |
mmaas | 3:1e85b49a3e18 | 181 | while(sw1 == 1) { |
mmaas | 3:1e85b49a3e18 | 182 | |
mmaas | 3:1e85b49a3e18 | 183 | newX = mag.readVal(MAG_OUT_X_MSB); |
mmaas | 3:1e85b49a3e18 | 184 | newY = mag.readVal(MAG_OUT_Y_MSB); |
mmaas | 3:1e85b49a3e18 | 185 | if (newX > tempXmax) tempXmax = newX; |
mmaas | 3:1e85b49a3e18 | 186 | if (newX < tempXmin) tempXmin = newX; |
mmaas | 3:1e85b49a3e18 | 187 | if (newY > tempYmax) tempYmax = newY; |
mmaas | 3:1e85b49a3e18 | 188 | if (newY < tempYmin) tempYmin = newY; |
mmaas | 3:1e85b49a3e18 | 189 | } |
mmaas | 3:1e85b49a3e18 | 190 | |
mmaas | 3:1e85b49a3e18 | 191 | mag.setCalibration( tempXmin, tempXmax, tempYmin, tempYmax ); |
mmaas | 3:1e85b49a3e18 | 192 | |
mmaas | 3:1e85b49a3e18 | 193 | // Wait for release |
mmaas | 3:1e85b49a3e18 | 194 | while( sw1 == 0 ) { |
mmaas | 3:1e85b49a3e18 | 195 | } |
mmaas | 3:1e85b49a3e18 | 196 | |
mmaas | 3:1e85b49a3e18 | 197 | printf("Calibration complete.\r\n"); |
mmaas | 3:1e85b49a3e18 | 198 | |
mmaas | 3:1e85b49a3e18 | 199 | } |
mmaas | 3:1e85b49a3e18 | 200 | |
mmaas | 3:1e85b49a3e18 | 201 |