El-POM1001 / Mbed 2 deprecated LAB11_Oppgave2

accelerometer og akse

Dependencies:   mbed

Fork of LAB11_Oppgave2 by EL-POM1001

main.cpp@1:d4624c8ba9f5, 2015-11-09 (annotated)

Committer:
rlanghbv
Date:
Mon Nov 09 13:48:59 2015 +0000
Revision:
1:d4624c8ba9f5
Parent:
0:87a84e072ec7
Child:
2:b3bd4f835893
fixed ; error

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rlanghbv 0:87a84e072ec7 1 #include "mbed.h"
rlanghbv 0:87a84e072ec7 2 //SDA , SCL
rlanghbv 0:87a84e072ec7 3 I2C i2cBus(PB_9, PB_8);
rlanghbv 0:87a84e072ec7 4
rlanghbv 0:87a84e072ec7 5 Serial pc(SERIAL_TX, SERIAL_RX);
rlanghbv 0:87a84e072ec7 6
rlanghbv 0:87a84e072ec7 7 #define NUNCHUK_8BIT_ADDR 0x52<<1 // 8-bit I2C slave address = ( ( 7bit i2c address) << 1 | (read/write) bit
rlanghbv 0:87a84e072ec7 8
rlanghbv 0:87a84e072ec7 9 typedef struct {
rlanghbv 0:87a84e072ec7 10 int xStick;
rlanghbv 0:87a84e072ec7 11 int yStick;
rlanghbv 0:87a84e072ec7 12 int xAcc;
rlanghbv 0:87a84e072ec7 13 int yAcc;
rlanghbv 0:87a84e072ec7 14 int zAcc;
rlanghbv 0:87a84e072ec7 15 bool bButtonC;
rlanghbv 0:87a84e072ec7 16 bool bButtonZ;
rlanghbv 0:87a84e072ec7 17 } NunchukData;
rlanghbv 0:87a84e072ec7 18
rlanghbv 0:87a84e072ec7 19 void initNunchuk()
rlanghbv 0:87a84e072ec7 20 {
rlanghbv 0:87a84e072ec7 21 i2cBus.frequency(100000);
rlanghbv 0:87a84e072ec7 22
rlanghbv 0:87a84e072ec7 23 wait(0.5);
rlanghbv 0:87a84e072ec7 24
rlanghbv 0:87a84e072ec7 25 char cmd[2];
rlanghbv 0:87a84e072ec7 26 cmd[0] = 0x40;
rlanghbv 0:87a84e072ec7 27 cmd[1] = 0x00;
rlanghbv 0:87a84e072ec7 28 i2cBus.write(NUNCHUK_8BIT_ADDR, cmd, 2) ;
rlanghbv 0:87a84e072ec7 29
rlanghbv 0:87a84e072ec7 30 cmd[0] = 0xF0;
rlanghbv 0:87a84e072ec7 31 cmd[1] = 0x55;
rlanghbv 0:87a84e072ec7 32 i2cBus.write(NUNCHUK_8BIT_ADDR, cmd, 2) ;
rlanghbv 0:87a84e072ec7 33
rlanghbv 0:87a84e072ec7 34 cmd[0] = 0xFB;
rlanghbv 0:87a84e072ec7 35 cmd[1] = 0x00;
rlanghbv 0:87a84e072ec7 36 i2cBus.write(NUNCHUK_8BIT_ADDR, cmd, 2) ;
rlanghbv 0:87a84e072ec7 37 }
rlanghbv 0:87a84e072ec7 38
rlanghbv 0:87a84e072ec7 39 void GetNunchukData(NunchukData &data)
rlanghbv 0:87a84e072ec7 40 {
rlanghbv 0:87a84e072ec7 41 char buffer[6];
rlanghbv 0:87a84e072ec7 42
rlanghbv 0:87a84e072ec7 43 char cmd[1];
rlanghbv 0:87a84e072ec7 44 cmd[0] = 0x00;
rlanghbv 0:87a84e072ec7 45 i2cBus.write(NUNCHUK_8BIT_ADDR, cmd, 1) ;
rlanghbv 0:87a84e072ec7 46
rlanghbv 0:87a84e072ec7 47 wait(.01);
rlanghbv 0:87a84e072ec7 48 i2cBus.read(NUNCHUK_8BIT_ADDR, buffer, 6) ;
rlanghbv 0:87a84e072ec7 49
rlanghbv 0:87a84e072ec7 50 data.xStick = buffer[0];
rlanghbv 0:87a84e072ec7 51 data.yStick = buffer[1];
rlanghbv 0:87a84e072ec7 52 data.xAcc = (buffer[2] << 2) + ((buffer[5] & 0x0C) >> 2);
rlanghbv 0:87a84e072ec7 53 data.yAcc = (buffer[3] << 2) + ((buffer[5] & 0x30) >> 4);
rlanghbv 0:87a84e072ec7 54 data.zAcc = (buffer[4] << 2) + ((buffer[5] & 0xC0) >> 6);
rlanghbv 0:87a84e072ec7 55 data.bButtonZ = (buffer[5] & 1) == 0;
rlanghbv 0:87a84e072ec7 56 data.bButtonC = (buffer[5] & 2) == 0;
rlanghbv 0:87a84e072ec7 57 }
rlanghbv 0:87a84e072ec7 58
rlanghbv 0:87a84e072ec7 59 int main()
rlanghbv 0:87a84e072ec7 60 {
rlanghbv 0:87a84e072ec7 61 NunchukData nunchukData;
rlanghbv 0:87a84e072ec7 62
rlanghbv 0:87a84e072ec7 63 initNunchuk();
rlanghbv 0:87a84e072ec7 64 while(true) {
rlanghbv 0:87a84e072ec7 65 GetNunchukData(nunchukData);
rlanghbv 0:87a84e072ec7 66 printf("x-yoy %3d,y-yoy %3d ",nunchukData.xStick,nunchukData.yStick );
rlanghbv 1:d4624c8ba9f5 67 printf("\r\n");
rlanghbv 0:87a84e072ec7 68 }
rlanghbv 0:87a84e072ec7 69 }
rlanghbv 0:87a84e072ec7 70