Aswin Sivakumar / FXOS8700

FXOS8700 library

Dependents:   FRDM-STBC-AGMP01_SensorStream Hexi_Accelero_Magneto_Example A_Dragonfly_Freescale_Accel_Mag_Gyro_Sensor_AGM01 A_Dragonfly_BlueMix_QuickStart_NXP_Sensor ... more

FXOS8700.cpp@0:a4ffc3c3e770, 2015-12-07 (annotated)

Committer:
AswinSivakumar
Date:
Mon Dec 07 08:15:07 2015 +0000
Revision:
0:a4ffc3c3e770
Child:
1:66ff36d0d1b1
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AswinSivakumar 0:a4ffc3c3e770 1 #include "FXOS8700.h"
AswinSivakumar 0:a4ffc3c3e770 2 #include "mbed.h"
AswinSivakumar 0:a4ffc3c3e770 3
AswinSivakumar 0:a4ffc3c3e770 4 FXOS8700::FXOS8700(PinName sda, PinName scl) : accelmagi2c(sda,scl)
AswinSivakumar 0:a4ffc3c3e770 5 {
AswinSivakumar 0:a4ffc3c3e770 6
AswinSivakumar 0:a4ffc3c3e770 7 }
AswinSivakumar 0:a4ffc3c3e770 8
AswinSivakumar 0:a4ffc3c3e770 9 void FXOS8700::accel_config(void)
AswinSivakumar 0:a4ffc3c3e770 10 {
AswinSivakumar 0:a4ffc3c3e770 11 char d[2];
AswinSivakumar 0:a4ffc3c3e770 12 d[0] = FXOS8700_CTRL_REG1; //Puts device in Standby mode
AswinSivakumar 0:a4ffc3c3e770 13 d[1] = 0x00;
AswinSivakumar 0:a4ffc3c3e770 14 accelmagi2c.write(FXOS8700_I2C_ADDRESS, d,2);
AswinSivakumar 0:a4ffc3c3e770 15
AswinSivakumar 0:a4ffc3c3e770 16
AswinSivakumar 0:a4ffc3c3e770 17 d[0] = FXOS8700_CTRL_REG1; //Puts device in Active mode
AswinSivakumar 0:a4ffc3c3e770 18 d[1] = 0x01;
AswinSivakumar 0:a4ffc3c3e770 19 accelmagi2c.write(FXOS8700_I2C_ADDRESS, d, 2);
AswinSivakumar 0:a4ffc3c3e770 20
AswinSivakumar 0:a4ffc3c3e770 21 }
AswinSivakumar 0:a4ffc3c3e770 22
AswinSivakumar 0:a4ffc3c3e770 23 void FXOS8700::mag_config(void)
AswinSivakumar 0:a4ffc3c3e770 24 {
AswinSivakumar 0:a4ffc3c3e770 25 char d[2];
AswinSivakumar 0:a4ffc3c3e770 26 d[0] = FXOS8700_CTRL_REG1; //Puts device in Standby mode
AswinSivakumar 0:a4ffc3c3e770 27 d[1] = 0x00;
AswinSivakumar 0:a4ffc3c3e770 28 accelmagi2c.write(FXOS8700_I2C_ADDRESS, d,2);
AswinSivakumar 0:a4ffc3c3e770 29
AswinSivakumar 0:a4ffc3c3e770 30
AswinSivakumar 0:a4ffc3c3e770 31 d[0] = FXOS8700_M_CTRL_REG1; //Puts device in hybrid mode (both accel and mag are active)
AswinSivakumar 0:a4ffc3c3e770 32 d[1] = 0x03;
AswinSivakumar 0:a4ffc3c3e770 33 accelmagi2c.write(FXOS8700_I2C_ADDRESS, d, 2);
AswinSivakumar 0:a4ffc3c3e770 34
AswinSivakumar 0:a4ffc3c3e770 35
AswinSivakumar 0:a4ffc3c3e770 36 d[0] = FXOS8700_CTRL_REG1; //Puts device in Active mode
AswinSivakumar 0:a4ffc3c3e770 37 d[1] = 0x01;
AswinSivakumar 0:a4ffc3c3e770 38 accelmagi2c.write(FXOS8700_I2C_ADDRESS, d,2);
AswinSivakumar 0:a4ffc3c3e770 39
AswinSivakumar 0:a4ffc3c3e770 40 }
AswinSivakumar 0:a4ffc3c3e770 41
AswinSivakumar 0:a4ffc3c3e770 42 void FXOS8700::acquire_accel_data_g(float * a_data)
AswinSivakumar 0:a4ffc3c3e770 43 {
AswinSivakumar 0:a4ffc3c3e770 44
AswinSivakumar 0:a4ffc3c3e770 45 char data_bytes[7];
AswinSivakumar 0:a4ffc3c3e770 46 char d[1];
AswinSivakumar 0:a4ffc3c3e770 47 d[0]=FXOS8700_STATUS;
AswinSivakumar 0:a4ffc3c3e770 48 accelmagi2c.write(FXOS8700_I2C_ADDRESS,d,1,true); // Read the 6 data bytes - LSB and MSB for X, Y and Z Axes.
AswinSivakumar 0:a4ffc3c3e770 49 accelmagi2c.read(FXOS8700_I2C_ADDRESS,data_bytes,7);
AswinSivakumar 0:a4ffc3c3e770 50
AswinSivakumar 0:a4ffc3c3e770 51 a_data[0] = ((float)((int16_t)(((data_bytes[1]*256) + (data_bytes[2])))>> 2) * 0.000244);
AswinSivakumar 0:a4ffc3c3e770 52 a_data[1] = ((float)((int16_t)(((data_bytes[3]*256) + (data_bytes[4])))>> 2) * 0.000244);
AswinSivakumar 0:a4ffc3c3e770 53 a_data[2] = ((float)((int16_t)(((data_bytes[5]*256) + (data_bytes[6])))>> 2) * 0.000244);
AswinSivakumar 0:a4ffc3c3e770 54
AswinSivakumar 0:a4ffc3c3e770 55 }
AswinSivakumar 0:a4ffc3c3e770 56
AswinSivakumar 0:a4ffc3c3e770 57 void FXOS8700::acquire_mag_data_uT(float * m_data)
AswinSivakumar 0:a4ffc3c3e770 58 {
AswinSivakumar 0:a4ffc3c3e770 59
AswinSivakumar 0:a4ffc3c3e770 60 char data_bytes[7];
AswinSivakumar 0:a4ffc3c3e770 61 char d[1];
AswinSivakumar 0:a4ffc3c3e770 62 d[0]=FXOS8700_MDR_STATUS;
AswinSivakumar 0:a4ffc3c3e770 63 accelmagi2c.write(FXOS8700_I2C_ADDRESS,d,1,true); // Read the 6 data bytes - LSB and MSB for X, Y and Z Axes.
AswinSivakumar 0:a4ffc3c3e770 64 accelmagi2c.read(FXOS8700_I2C_ADDRESS,data_bytes,7);
AswinSivakumar 0:a4ffc3c3e770 65
AswinSivakumar 0:a4ffc3c3e770 66 m_data[0] = (float)((int16_t)((data_bytes[1]*256) + (data_bytes[2]))) * 0.1;
AswinSivakumar 0:a4ffc3c3e770 67 m_data[1] = (float)((int16_t)((data_bytes[3]*256) + (data_bytes[4]))) * 0.1;
AswinSivakumar 0:a4ffc3c3e770 68 m_data[2] = (float)((int16_t)((data_bytes[5]*256) + (data_bytes[6]))) * 0.1;
AswinSivakumar 0:a4ffc3c3e770 69
AswinSivakumar 0:a4ffc3c3e770 70 }
AswinSivakumar 0:a4ffc3c3e770 71
AswinSivakumar 0:a4ffc3c3e770 72