Jim Cooke / Mbed 2 deprecated Hat_Board_v5_1

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Dependencies:   mbed-dsp mbed

Fork of Hat_Board_v5 by John Scharf

main.cpp@3:8334f137c151, 2014-03-21 (annotated)

Committer:
drnow
Date:
Fri Mar 21 01:13:05 2014 +0000
Revision:
3:8334f137c151
Parent:
2:3a8cd127b72a
Child:
4:e9df42113893
working, trimmed version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
drnow 0:34bad5aca893 1 //Hat Board Test by James Cooke 3/18/2014
drnow 0:34bad5aca893 2 //Goal of program: read and output data from LIS3DH accelerometer
drnow 0:34bad5aca893 3 //Started with Si_4088_PC working program: able to get data from Si1142 on new hat board
drnow 0:34bad5aca893 4
drnow 0:34bad5aca893 5 #include "mbed.h"
drnow 0:34bad5aca893 6 #include "SI_LIS.h"
drnow 0:34bad5aca893 7 #include <time.h>
drnow 0:34bad5aca893 8
drnow 0:34bad5aca893 9 DigitalOut myled3(LED3);
drnow 0:34bad5aca893 10 DigitalOut myled4(LED4);
drnow 0:34bad5aca893 11 Serial pc(USBTX,USBRX);
drnow 0:34bad5aca893 12 DigitalIn int_pin(p8);
drnow 0:34bad5aca893 13 Timer t;
drnow 0:34bad5aca893 14
drnow 0:34bad5aca893 15 int reading_IR,reading_660,LSB,MSB;
drnow 0:34bad5aca893 16 char rx_data[4];
drnow 1:2efeed26d93a 17 char accel_data[6];
drnow 0:34bad5aca893 18 char temp_val;
drnow 3:8334f137c151 19 short int dataX; // short int: 16 bits. This allows easy negative results
drnow 3:8334f137c151 20 short int dataY; // short int: 16 bits. This allows easy negative results
drnow 3:8334f137c151 21 short int dataZ; // short int: 16 bits. This allows easy negative results
drnow 2:3a8cd127b72a 22 float t_msec;
drnow 3:8334f137c151 23 float dataX_fl;
drnow 3:8334f137c151 24 float dataY_fl;
drnow 3:8334f137c151 25 float dataZ_fl;
drnow 3:8334f137c151 26 float accel_fl;
drnow 0:34bad5aca893 27
drnow 0:34bad5aca893 28 int main()
drnow 0:34bad5aca893 29 {
drnow 3:8334f137c151 30 // To test: Block data update (CTRL_REG4); 1.25 KHz data; low power vs normal power
drnow 0:34bad5aca893 31
drnow 0:34bad5aca893 32 myled4 = 0; // ODD: if this line not included, there is a compiler "internal error"
drnow 3:8334f137c151 33 pc.baud(460800);
drnow 2:3a8cd127b72a 34 Init_Accel(); // starts LIS3DH
drnow 2:3a8cd127b72a 35 restart(); // starts Si1142
drnow 0:34bad5aca893 36
drnow 2:3a8cd127b72a 37 wait_ms(30);
drnow 2:3a8cd127b72a 38 command (PS_AUTO); //start measuring
drnow 2:3a8cd127b72a 39 wait (0.5);
drnow 0:34bad5aca893 40
drnow 2:3a8cd127b72a 41 while(1) {
drnow 2:3a8cd127b72a 42 if(!int_pin) {
drnow 2:3a8cd127b72a 43 t.reset();
drnow 2:3a8cd127b72a 44 t.start();
drnow 1:2efeed26d93a 45
drnow 2:3a8cd127b72a 46 write_reg(IRQ_STATUS,0x04); // clear the interrupt.
drnow 1:2efeed26d93a 47
drnow 2:3a8cd127b72a 48 read_reg2(PS1_DATA0);
drnow 3:8334f137c151 49 reading_IR = rx_data[1] << 8 | rx_data[0];
drnow 3:8334f137c151 50 reading_660 = rx_data[3] << 8 | rx_data[1];
drnow 1:2efeed26d93a 51
drnow 2:3a8cd127b72a 52 pc.printf ("%d, %d, ", reading_IR,reading_660);
drnow 0:34bad5aca893 53
drnow 2:3a8cd127b72a 54 Get_Accel_Reg_6 (0x28);
drnow 0:34bad5aca893 55
drnow 3:8334f137c151 56 dataX = accel_data[1] << 8 | accel_data[0];
drnow 3:8334f137c151 57 dataX_fl = (float) dataX;
drnow 3:8334f137c151 58 dataY = accel_data[3] << 8 | accel_data[2];
drnow 3:8334f137c151 59 dataY_fl = (float) dataY;
drnow 3:8334f137c151 60 dataZ = accel_data[5] << 8 | accel_data[4];
drnow 3:8334f137c151 61 dataZ_fl = (float) dataZ;
drnow 3:8334f137c151 62 accel_fl = sqrt( (dataX_fl*dataX_fl) + (dataY_fl*dataY_fl) + (dataZ_fl*dataZ_fl) );
drnow 3:8334f137c151 63 pc.printf ("%6.0f ",accel_fl);
drnow 0:34bad5aca893 64
drnow 2:3a8cd127b72a 65 t.stop();
drnow 2:3a8cd127b72a 66 t_msec = t.read() * 1000;
drnow 3:8334f137c151 67 printf("%6.3f msec\n", t_msec);
drnow 2:3a8cd127b72a 68 }
drnow 2:3a8cd127b72a 69 }
drnow 0:34bad5aca893 70 }
drnow 0:34bad5aca893 71 /*
drnow 0:34bad5aca893 72 Notes on RJ-45: Pin 1: Vcc Pin 2: GND Pin 3: SDA > 9 on 4088
drnow 0:34bad5aca893 73 Pin 4: SCL >> 10 on 4088 Pin 6: INT > 8 on 4088
drnow 0:34bad5aca893 74
drnow 0:34bad5aca893 75 Bluetooth: Tx on 4088: Pin 37 >> RX Rx on 4088: Pin 31 >> TX
drnow 0:34bad5aca893 76 PC COMM port on Square board: 12
drnow 0:34bad5aca893 77
drnow 0:34bad5aca893 78 */