Bryce Himebaugh / Mbed 2 deprecated lab_practical

Code used in the SICE E210/P442 lab practical

Dependencies:   ADXL362 TSL2561 mbed

main.cpp@0:69b431195dc4, 2018-04-25 (annotated)

Committer:
bhimebau
Date:
Wed Apr 25 19:11:51 2018 +0000
Revision:
0:69b431195dc4
Child:
1:f5c993193adc
Initial version of the code

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bhimebau 0:69b431195dc4 1 // Code used for the SP18 E210/P442 Lab Practical
bhimebau 0:69b431195dc4 2 #include "mbed.h"
bhimebau 0:69b431195dc4 3 #include "ADXL362.h"
bhimebau 0:69b431195dc4 4 #include "TSL2561.h"
bhimebau 0:69b431195dc4 5
bhimebau 0:69b431195dc4 6 AnalogOut my_output(PA_4);
bhimebau 0:69b431195dc4 7
bhimebau 0:69b431195dc4 8 // Interface pulled from ADXL362.cpp
bhimebau 0:69b431195dc4 9 // ADXL362::ADXL362(PinName CS, PinName MOSI, PinName MISO, PinName SCK) :
bhimebau 0:69b431195dc4 10 ADXL362 adxl362(PA_0,PA_7,PA_6,PA_1);
bhimebau 0:69b431195dc4 11 TSL2561 lightsensor(PB_7,PB_6);
bhimebau 0:69b431195dc4 12
bhimebau 0:69b431195dc4 13
bhimebau 0:69b431195dc4 14 #define PI (3.141592653589793238462)
bhimebau 0:69b431195dc4 15 #define AMPLITUDE (1.0) // x * 3.3V
bhimebau 0:69b431195dc4 16 #define PHASE (PI * 1) // 2*pi is one period
bhimebau 0:69b431195dc4 17 #define RANGE (0x7FFF)
bhimebau 0:69b431195dc4 18 #define OFFSET (0x7FFF)
bhimebau 0:69b431195dc4 19
bhimebau 0:69b431195dc4 20 // Configuration for sinewave output
bhimebau 0:69b431195dc4 21 #define BUFFER_SIZE (360)
bhimebau 0:69b431195dc4 22 uint16_t buffer[BUFFER_SIZE];
bhimebau 0:69b431195dc4 23
bhimebau 0:69b431195dc4 24 void calculate_sinewave(void);
bhimebau 0:69b431195dc4 25
bhimebau 0:69b431195dc4 26 int main() {
bhimebau 0:69b431195dc4 27 printf("Sinewave example\n");
bhimebau 0:69b431195dc4 28 calculate_sinewave();
bhimebau 0:69b431195dc4 29 adxl362.reset();
bhimebau 0:69b431195dc4 30 wait_ms(600); // we need to wait at least 500ms after ADXL362 reset
bhimebau 0:69b431195dc4 31 adxl362.set_mode(ADXL362::MEASUREMENT);
bhimebau 0:69b431195dc4 32 volatile int8_t x,y,z;
bhimebau 0:69b431195dc4 33 volatile float light;
bhimebau 0:69b431195dc4 34 while(1) {
bhimebau 0:69b431195dc4 35 for (int i = 0; i < BUFFER_SIZE; i++) {
bhimebau 0:69b431195dc4 36 my_output.write_u16(buffer[i]);
bhimebau 0:69b431195dc4 37 wait_us(10);
bhimebau 0:69b431195dc4 38 }
bhimebau 0:69b431195dc4 39 x=adxl362.scanx_u8();
bhimebau 0:69b431195dc4 40 y=adxl362.scany_u8();
bhimebau 0:69b431195dc4 41 z=adxl362.scanz_u8();
bhimebau 0:69b431195dc4 42 // printf("Accelerometer x = %d y = %d z = %d\r\n",x,y,z);
bhimebau 0:69b431195dc4 43 // printf("Light sensor %f\n\r",lightsensor.lux());
bhimebau 0:69b431195dc4 44 // wait_ms(100);
bhimebau 0:69b431195dc4 45 }
bhimebau 0:69b431195dc4 46 }
bhimebau 0:69b431195dc4 47
bhimebau 0:69b431195dc4 48 // Create the sinewave buffer
bhimebau 0:69b431195dc4 49 void calculate_sinewave(void){
bhimebau 0:69b431195dc4 50 for (int i = 0; i < BUFFER_SIZE; i++) {
bhimebau 0:69b431195dc4 51 double rads = (PI * i)/180.0; // Convert degree in radian
bhimebau 0:69b431195dc4 52 buffer[i] = (uint16_t)(AMPLITUDE * (RANGE * (cos(rads + PHASE))) + OFFSET);
bhimebau 0:69b431195dc4 53 }
bhimebau 0:69b431195dc4 54 }