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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
Diff: main.cpp
- Revision:
- 6:aaf347dfd538
- Parent:
- 4:6cb640167538
- Child:
- 7:9e1d22b35dab
diff -r 2419daecf370 -r aaf347dfd538 main.cpp --- a/main.cpp Tue Dec 31 17:19:02 2013 +0000 +++ b/main.cpp Sat Jan 04 02:33:13 2014 +0000 @@ -1,4 +1,5 @@ #include "mbed.h" +#include "TSISensor.h" #include "MMA8451Q.h" #include "MAG3110.h" @@ -22,6 +23,10 @@ // GPIO to monitor the two onboard push buttons // PTC3 / GPIO = SW1 - low input = button pressed // PTC12 / GPIO = SW3 - low input = button pressed +// +// AnalogIn: +// ADC channel to monitor ambient light sensor +// PTE22 / ADC = Light Sensor - higher value = darker // // TSI (source: http://mbed.org/users/emilmont/code/TSI/ ) // Capacitive Touch library to support the onboard Touch-Slider @@ -39,33 +44,38 @@ // PTE25 / I2C0_SDA = I2C bus for communication (shared with MMA8451) // PTD1 / INT1_MAG / INT2_ACCEL = INT1 output of MAG3110 (shared with MMA8451) // -// FRDM_LightSensor -// Ambient light sensor (Q1) -// PTE22 / ADC -// -// FRDM_LCD -// 4 Digit Segment LCD -// TempSensor - KL46 + ////////////////////////////////////////////////////////////////////// // Include support for USB Serial console Serial pc(USBTX, USBRX); + ////////////////////////////////////////////////////////////////////// // Include support for on-board green and red LEDs -#define LED_ON 0 +#define LED_ON 0 #define LED_OFF 1 DigitalOut greenLED(LED_GREEN); DigitalOut redLED(LED_RED); ////////////////////////////////////////////////////////////////////// -// Include support for onboard pushbuttons +// Include support for onboard pushbuttons (value = 0 when pressed) DigitalIn sw1(PTC3); DigitalIn sw3(PTC12); +////////////////////////////////////////////////////////////////////// +// Include support for onboard Capacitive Touch Slider +TSISensor slider; + + +////////////////////////////////////////////////////////////////////// +// Include support for analog inputs +AnalogIn lightSense(PTE22); + + ///////////////////////////////////////////////////////////////////// // Include support for MMA8451Q Acceleromoter #define MMA8451_I2C_ADDRESS (0x1d<<1) @@ -74,100 +84,104 @@ ///////////////////////////////////////////////////////////////////// // Include support for MAG3110 Magnetometer -void calXY(); //magnetometer calibration: finding max and min of X, Y axis MAG3110 mag(PTE25, PTE24); +///////////////////////////////////////////////////////////////////// +// Structure to hold FRDM-KL46Z sensor and input data +struct KL46_SENSOR_DATA { + int sw1State; + int sw3State; + + float sliderPosition; + + float lightSensor; + + int magXVal; + int magYVal; + float magHeading; + + float accXVal; + float accYVal; + float accZVal; +} sensorData; + +///////////////////////////////////////////////////////////////////// +// Prototype for routine to send all sensor data to serial port +void serialSendSensorData(void); + + +///////////////////////////////////////////////////////////////////// +// main application int main() { - // Ensure LEDs are off greenLED = LED_OFF; redLED = LED_OFF; // Set Serial Port data rate and say Hello - pc.baud( 230400 ); + pc.baud( 115200 ); pc.printf("Hello World\r\n"); - // Turn on pull up resistors on pushbutton inputs sw1.mode(PullUp); sw3.mode(PullUp); - // Quick blink LEDs - redLED = LED_ON; - wait(.05); - greenLED = LED_ON; - wait(.05); - greenLED = LED_OFF; - redLED = LED_OFF; - - wait(1); - - - // Get some values - printf("DR_STATUS %X\r\n", mag.readReg( MAG_DR_STATUS )); - printf("WHO_AM_I %X\r\n", mag.readReg( MAG_WHO_AM_I )); - printf("SYSMOD %X\r\n", mag.readReg( MAG_SYSMOD )); - printf("DIE_TEMP %d\r\n", mag.readReg( MAG_DIE_TEMP )); - - printf("OFF_X %d\r\n", mag.readVal( MAG_OFF_X_MSB )); - printf("OFF_Y %d\r\n", mag.readVal( MAG_OFF_Y_MSB )); - printf("OFF_Z %d\r\n", mag.readVal( MAG_OFF_Z_MSB )); - - printf("CTRL_REG1 %X\r\n", mag.readReg( MAG_CTRL_REG1 )); - printf("CTRL_REG2 %X\r\n", mag.readReg( MAG_CTRL_REG2 )); - - - printf("Press and release SW1, rotate the board 360 degrees and then press and release SW1 to complete the calibration process.\r\n"); + // Calibrate Magnetometer + printf("Press and release SW1, rotate the board 360 degrees.\r\n"); + printf("Then press and release SW1 to complete the calibration process.\r\n"); mag.calXY(PTC3, 0); printf("Calibration complete.\r\n"); - - // Loop: Blink LEDs, report pushbutton status, mag data, accel data - while(1) { - // Get Magnetometer data - int xVal = mag.readVal(MAG_OUT_X_MSB); - int yVal = mag.readVal(MAG_OUT_Y_MSB); - float heading = mag.getHeading(); + // Loop forever - read and update sensor data and print to console. + while(1) + { + sensorData.sw1State = sw1; + sensorData.sw3State = sw3; + + sensorData.sliderPosition = slider.readPercentage() * 100; + + sensorData.lightSensor = lightSense; + + sensorData.accXVal = acc.getAccX(); + sensorData.accYVal = acc.getAccY(); + sensorData.accZVal = acc.getAccZ(); - // Do something with heading - display direction - printf("Heading: "); - if (abs(heading) <= 22.5) printf("N "); - if (abs(heading) >= 157.5) printf("S "); - if (heading >= 67.5 && heading <= 112.5) printf("E "); - if (heading <= -67.5 && heading >= -112.5) printf("W "); - if (heading > 22.5 && heading < 67.5) printf("NE "); - if (heading < -22.5 && heading > -67.5) printf("NW "); - if (heading > 112.5 && heading < 157.5) printf("SE "); - if (heading < -112.5 && heading > -157.5) printf("SW "); - if (heading < 0) heading += 360.0; - printf("%f\r\n", heading); + sensorData.magXVal = mag.readVal(MAG_OUT_X_MSB); + sensorData.magYVal = mag.readVal(MAG_OUT_Y_MSB); + sensorData.magHeading = mag.getHeading(); + + serialSendSensorData(); + + // Blink LEDs (show life) + redLED = LED_ON; + wait(.03); + greenLED = LED_ON; + wait(.03); + redLED = LED_OFF; + wait(.03); + greenLED = LED_OFF; - - greenLED = LED_ON; - redLED = LED_OFF; - - printf("SW1 = %d, SW3 = %d, X = %f, Y = %f, Z = %f\r\n\n", sw1.read(), sw3.read(), acc.getAccX(), acc.getAccY(), acc.getAccZ()); - wait(0.25); - - greenLED = LED_OFF; - redLED = LED_ON; - - wait(0.25); - - } + wait(1); + } } -void calXY() //magnetometer calibration: finding max and min of X, Y axis +void serialSendSensorData(void) { - - -} + printf("Switches:\r\n SW1 = %d\r\n SW3 = %d\r\n\r\n", sensorData.sw1State, sensorData.sw3State); + printf("Slider:\r\n %2.0f %% \r\n\r\n", sensorData.sliderPosition); + printf("Light Sensor:\r\n %1.3f \r\n\r\n", sensorData.lightSensor); + printf("Accelerometer:\r\n X = %1.3f\r\n Y = %1.3f\r\n Z = %1.3f\r\n\r\n", sensorData.accXVal, sensorData.accYVal, sensorData.accZVal); + printf("Magnetometer:\r\n X = %d\r\n Y = %d\r\n Heading = %f \r\n\r\n", sensorData.magXVal, sensorData.magYVal, sensorData.magHeading); + + printf("\r\n"); + +} +