driver for gyro

Dependencies:   COG4050_ADT7420

Fork of COG4050_adxl355_adxl357-ver2 by ADI_CAC

ADXRS290/ADXRS290.cpp

Committer:
vtoffoli
Date:
2018-08-14
Revision:
7:5aaa09c40283
Parent:
6:45d2393ef468
Child:
9:1afd906c5ed2

File content as of revision 7:5aaa09c40283:

#include <stdint.h>
#include "mbed.h"
#include "ADXRS290.h"

/** ----------------------------------- */
/** SPI - MAX 5MHZ                      */
/** ----------------------------------- */
ADXRS290::ADXRS290(PinName cs_pin, PinName MOSI, PinName MISO, PinName SCK): adxrs290(MOSI, MISO, SCK), cs(cs_pin)
{
    cs = 1;
    adxrs290.format(8,_SPI_MODE);
    adxrs290.lock();
    gyro_sens = 5e-3;
    t_sens = 0.1;
}
void ADXRS290::frequency(int hz)
{
    adxrs290.frequency(hz);
}

/** ----------------------------------- */
/** Writes the reg register with data   */
/** ----------------------------------- */
void ADXRS290::write_reg(ADXRS290_register_t reg, uint8_t data){
    adxrs290.format(8, _SPI_MODE);
    cs = false;
    adxrs290.write(static_cast<uint8_t>(reg) | _WRITE_REG_CMD);
    adxrs290.write(data);
    cs = true;
}
/** ----------------------------------- */
/** Reads the reg register              */
/** ----------------------------------- */
uint8_t ADXRS290::read_reg(ADXRS290_register_t reg){
    uint8_t ret_val;
    adxrs290.format(8, _SPI_MODE);
    cs = false;
    adxrs290.write(static_cast<uint8_t>(reg) | _READ_REG_CMD);
    ret_val = adxrs290.write(_DUMMY_BYTE);
    cs = true;
    return ret_val;
}
uint16_t ADXRS290::read_reg_u16(ADXRS290_register_t reg){
    uint16_t ret_val = 0;
    adxrs290.format(8, _SPI_MODE);
    cs = false;
    adxrs290.write(static_cast<uint8_t>(reg) | _READ_REG_CMD);
    ret_val = adxrs290.write(_DUMMY_BYTE);
    ret_val = (ret_val) | (adxrs290.write(_DUMMY_BYTE)<<8);
    cs = true;
    return ret_val;
}
/** ----------------------------------- */
/** Sets the CTL registers              */
/** ----------------------------------- */    
void ADXRS290::set_power_ctl_reg(uint8_t data){
    write_reg(POWER_CTL, data);
    wait(0.1);
}
void ADXRS290::set_filter_ctl_reg(ADXRS290_filter_ctl_t hpf, ADXRS290_filter_ctl_t lpf){
    write_reg(FILTER, hpf|lpf);
}
void ADXRS290::set_sync(ADXRS290_dataready_ctl_t data){}
    
uint16_t ADXRS290::scanx(){    
    return read_reg_u16(DATAX0);
}
uint16_t ADXRS290::scany(){
    return read_reg_u16(DATAY0);
}
uint16_t ADXRS290::scant(){
    return read_reg_u16(TEMP0);
}