mpl3115_altitude.c File Reference

The mpl3115_altitude.c file implements the ISSDK MPL3115 sensor driver example demonstration for Altitude mode. More...

#include "board.h"
#include "pin_mux.h"
#include "clock_config.h"
#include "fsl_debug_console.h"
#include "Driver_I2C.h"
#include "issdk_hal.h"
#include "mpl3115_drv.h"

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Macros
#define	MPL3115_DATA_SIZE   (5) /* 3 byte Pressure/Altitude and 2 byte Temperature. */
#define	MPL3115_SAMPLING_EXPONENT   (1) /* 2 seconds */

Functions
int	main (void)
	Main function. More...

Variables
const registerwritelist_t	cMpl3115ConfigAltitude []
	Register settings for Altitude readings in Normal (non buffered) mode. More...
const registerreadlist_t	cMpl3115Status [] = {{.readFrom = MPL3115_STATUS, .numBytes = 1}, __END_READ_DATA__}
	Address of Status Register. More...
const registerreadlist_t	cMpl3115OutputNormal []
	Address and size of Raw Altitude+Temperature Data in Normal Mode. More...

Detailed Description

The mpl3115_altitude.c file implements the ISSDK MPL3115 sensor driver example demonstration for Altitude mode.

Definition in file mpl3115_altitude.c.

Macro Definition Documentation

MPL3115_DATA_SIZE

#define MPL3115_DATA_SIZE   (5) /* 3 byte Pressure/Altitude and 2 byte Temperature. */

Definition at line 61 of file mpl3115_altitude.c.

Referenced by main().

MPL3115_SAMPLING_EXPONENT

#define MPL3115_SAMPLING_EXPONENT   (1) /* 2 seconds */

In MPL3115 the Auto Acquisition Time Step (ODR) can be set only in powers of 2 (i.e. 2^x, where x is the SAMPLING_EXPONENT). This gives a range of 1 second to 2^15 seconds (9 hours).

Definition at line 65 of file mpl3115_altitude.c.

Function Documentation

main()

int main

(

void

)

Main function.

Initialize the I2C driver.

Set the I2C Power mode.

Set the I2C bus speed.

Initialize MPL3115 sensor driver.

Set the task to be executed while waiting for I2C transactions to complete.

Configure the MPL3115 sensor.

Wait for data ready from the MPL3115.

Read new raw sensor data from the MPL3115.

Process the sample and convert the raw sensor data.

Definition at line 96 of file mpl3115_altitude.c.

References mpl3115_altitudedata_t::altitude, ASK_USER_TO_RESUME, BOARD_BootClockRUN, BOARD_InitDebugConsole(), BOARD_InitPins(), data, I2C_S_DEVICE_INDEX, I2C_S_DRIVER, I2C_S_SIGNAL_EVENT, int32_t(), MPL3115_ALTITUDE_CONV_FACTOR, MPL3115_DATA_SIZE, MPL3115_DR_STATUS_PTDR_MASK, MPL3115_I2C_ADDR, MPL3115_I2C_Configure(), MPL3115_I2C_Initialize(), MPL3115_I2C_ReadData(), MPL3115_I2C_SetIdleTask(), MPL3115_TEMPERATURE_CONV_FACTOR, MPL3115_WHOAMI_VALUE, rawData, SENSOR_ERROR_NONE, SMC, SMC_SetPowerModeWait(), status, and mpl3115_altitudedata_t::temperature.

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Variable Documentation

cMpl3115ConfigAltitude

const registerwritelist_t cMpl3115ConfigAltitude[]

Initial value:

= {
    
    {MPL3115_PT_DATA_CFG,
     MPL3115_PT_DATA_CFG_TDEFE_ENABLED | MPL3115_PT_DATA_CFG_PDEFE_ENABLED | MPL3115_PT_DATA_CFG_DREM_ENABLED,
     MPL3115_PT_DATA_CFG_TDEFE_MASK | MPL3115_PT_DATA_CFG_PDEFE_MASK | MPL3115_PT_DATA_CFG_DREM_MASK},
    
    {MPL3115_CTRL_REG1, MPL3115_CTRL_REG1_ALT_ALT | MPL3115_CTRL_REG1_OS_OSR_128,
     MPL3115_CTRL_REG1_ALT_MASK | MPL3115_CTRL_REG1_OS_MASK},
    
    {MPL3115_CTRL_REG2, MPL3115_SAMPLING_EXPONENT, MPL3115_CTRL_REG2_ST_MASK},
    __END_WRITE_DATA__}

Register settings for Altitude readings in Normal (non buffered) mode.

Definition at line 71 of file mpl3115_altitude.c.

cMpl3115OutputNormal

const registerreadlist_t cMpl3115OutputNormal[]

Initial value:

= {{.readFrom = MPL3115_OUT_P_MSB, .numBytes = MPL3115_DATA_SIZE},
                                                   __END_READ_DATA__}

Address and size of Raw Altitude+Temperature Data in Normal Mode.

Definition at line 87 of file mpl3115_altitude.c.

cMpl3115Status

const registerreadlist_t cMpl3115Status[] = {{.readFrom = MPL3115_STATUS, .numBytes = 1}, __END_READ_DATA__}

Address of Status Register.

Definition at line 84 of file mpl3115_altitude.c.