mma845x_demo.c File Reference

The mma845x_demo.c file implements the ISSDK MMA845x sensor demo example demonstration with interrupt mode. More...

#include "board.h"
#include "pin_mux.h"
#include "clock_config.h"
#include "Driver_I2C.h"
#include "Driver_USART.h"
#include "issdk_hal.h"
#include "gpio_driver.h"
#include "mma845x_drv.h"
#include "host_io_uart.h"
#include "systick_utils.h"
#include "auto_detection_service.h"

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Go to the source code of this file.

Data Structures
struct	mma845x_acceluserdata_t

Macros
#define	MMA845x_STREAM_DATA_SIZE   11 /* 6+1 byte Data */
#define	APPLICATION_NAME   "MMA845x Accelerometer Demo"
	Unique Name for this application which should match the target GUI pkg name. More...
#define	APPLICATION_VERSION   "2.5"
	Version to distinguish between instances the same application based on target Shield and updates. More...

Functions
void	mma845x_int_data_ready_callback (void *pUserData)
bool	process_host_command (uint8_t tag, uint8_t *hostCommand, uint8_t *hostResponse, size_t *hostMsgSize, size_t respBufferSize)
int	main (void)
	Main function. More...

Variables
const registerwritelist_t	mma845x_Config_Isr []
const registerreadlist_t	mma845x_Output_Values []
const registerreadlist_t	cMma845xqStatus []
const registerreadlist_t	cMma845xqPLStatus []
char	boardString [ADS_MAX_STRING_LENGTH] = {0}
char	shieldString [ADS_MAX_STRING_LENGTH] = {0}
char	embAppName [ADS_MAX_STRING_LENGTH] = {0}
volatile bool	bStreamingEnabled = false
volatile bool	bMma845xDataReady = false
volatile bool	bMma845xReady = false
uint8_t	gStreamID
int32_t	gSystick
GENERIC_DRIVER_GPIO *	pGpioDriver = &Driver_GPIO_KSDK

Detailed Description

The mma845x_demo.c file implements the ISSDK MMA845x sensor demo example demonstration with interrupt mode.

Definition in file mma845x_demo.c.

Macro Definition Documentation

APPLICATION_NAME

#define APPLICATION_NAME   "MMA845x Accelerometer Demo"

Unique Name for this application which should match the target GUI pkg name.

Definition at line 44 of file mma845x_demo.c.

Referenced by main().

APPLICATION_VERSION

#define APPLICATION_VERSION   "2.5"

Version to distinguish between instances the same application based on target Shield and updates.

Definition at line 46 of file mma845x_demo.c.

Referenced by main().

MMA845x_STREAM_DATA_SIZE

#define MMA845x_STREAM_DATA_SIZE   11 /* 6+1 byte Data */

Definition at line 41 of file mma845x_demo.c.

Referenced by main().

Function Documentation

main()

int main

(

void

)

Main function.

Initialize the MCU hardware.

Initialize INT1 MMA845x pin used by FRDM board

Initialize GREEN LED pin used by FRDM board

Initialize the I2C driver.

Set the I2C Power mode.

Set the I2C bus speed.

Initialize the UART driver.

Set the UART Power mode.

Set UART Baud Rate.

Initialize the MMA845x sensor driver.

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

Configure the MMA845x sensor driver.

Initialize streaming and assign a Stream ID.

Populate streaming header.

Clear the data ready flag, it will be set again by the ISR.

Read raw sensor data from the MMA845x.

Convert the raw sensor data to signed 32-bit and 16-bit containers for display to the debug port.

Read INT_SRC 0x0C from MMA845x.

Definition at line 219 of file mma845x_demo.c.

References mma845x_acceluserdata_t::accel, ADS_MAX_STRING_LENGTH, APPLICATION_NAME, APPLICATION_VERSION, bMma845xDataReady, bMma845xReady, BOARD_BootClockRUN, BOARD_DEBUG_UART_BAUDRATE, BOARD_RunADS(), BOARD_SystickElapsedTime_us(), BOARD_SystickEnable(), boardString, bStreamingEnabled, GENERIC_DRIVER_GPIO::clr_pin, data, mma845x_i2c_sensorhandle_t::deviceInfo, embAppName, GPIO_DIRECTION_IN, GPIO_DIRECTION_OUT, GREEN_LED, gStreamID, gSystick, HOST_FORMAT_HDLC, Host_IO_Add_ISO_Header(), Host_IO_Init(), Host_IO_Receive(), Host_IO_Send(), HOST_S_DRIVER, HOST_S_SIGNAL_EVENT, I2C_S_DEVICE_INDEX, I2C_S_DRIVER, I2C_S_SIGNAL_EVENT, int32_t(), mma845x_acceluserdata_t::intsrc, MMA8451_WHO_AM_I_WHOAMI_VALUE, MMA845x_ACCEL_DATA_SIZE, MMA845x_I2C_ADDR, MMA845x_I2C_Configure(), MMA845x_I2C_Initialize(), MMA845x_I2C_ReadData(), MMA845x_I2C_SetIdleTask(), MMA845x_INT1, mma845x_int_data_ready_callback(), MMA845x_STREAM_DATA_SIZE, mma845x_i2c_sensorhandle_t::pCommDrv, GENERIC_DRIVER_GPIO::pin_init, process_host_command(), rawData, SENSOR_ERROR_NONE, SHIELD_NAME, shieldString, SMC, SMC_SetPowerModeVlpr(), SMC_SetPowerModeWait(), status, STREAMING_HEADER_LEN, streamingPacket, mma845x_acceluserdata_t::timestamp, fxos8700_accelmagdata_t::timestamp, and GENERIC_DRIVER_GPIO::toggle_pin.

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mma845x_int_data_ready_callback()

void mma845x_int_data_ready_callback

(

void *

pUserData

)

Set flag to indicate Sensor has signalled data ready.

Definition at line 130 of file mma845x_demo.c.

References bMma845xDataReady.

Referenced by main().

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process_host_command()

bool process_host_command	(	uint8_t	tag,
		uint8_t *	hostCommand,
		uint8_t *	hostResponse,
		size_t *	hostMsgSize,
		size_t	respBufferSize
	)

Definition at line 136 of file mma845x_demo.c.

References bMma845xReady, BOARD_SystickStart(), boardString, bStreamingEnabled, GENERIC_DRIVER_GPIO::clr_pin, embAppName, GREEN_LED, gStreamID, gSystick, HOST_CMD_START, HOST_CMD_STOP, HOST_MSG_CMD_ACT_OFFSET, HOST_MSG_LEN_LSB_OFFSET, HOST_PRO_CMD_W_CFG_TAG, HOST_PRO_INT_CMD_TAG, HOST_PRO_INT_DEV_TAG, and shieldString.

Referenced by main().

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Variable Documentation

bMma845xDataReady

volatile bool bMma845xDataReady = false

Definition at line 121 of file mma845x_demo.c.

Referenced by main(), and mma845x_int_data_ready_callback().

bMma845xReady

volatile bool bMma845xReady = false

Definition at line 121 of file mma845x_demo.c.

Referenced by main(), and process_host_command().

boardString

char boardString[ADS_MAX_STRING_LENGTH] = {0}

Definition at line 119 of file mma845x_demo.c.

Referenced by main(), and process_host_command().

bStreamingEnabled

volatile bool bStreamingEnabled = false

Definition at line 121 of file mma845x_demo.c.

Referenced by main(), and process_host_command().

cMma845xqPLStatus

const registerreadlist_t cMma845xqPLStatus[]

Initial value:

= {
    {.readFrom = MMA845x_PL_STATUS, .numBytes = 1}, __END_READ_DATA__}

Definition at line 113 of file mma845x_demo.c.

cMma845xqStatus

const registerreadlist_t cMma845xqStatus[]

Initial value:

= {
    {.readFrom = MMA845x_INT_SOURCE, .numBytes = 1}, __END_READ_DATA__}

Prepare the register read for Status Register.

Definition at line 111 of file mma845x_demo.c.

embAppName

char embAppName[ADS_MAX_STRING_LENGTH] = {0}

Definition at line 120 of file mma845x_demo.c.

Referenced by main(), and process_host_command().

gStreamID

uint8_t gStreamID

Definition at line 122 of file mma845x_demo.c.

Referenced by main(), and process_host_command().

gSystick

int32_t gSystick

Definition at line 123 of file mma845x_demo.c.

Referenced by main(), and process_host_command().

mma845x_Config_Isr

const registerwritelist_t mma845x_Config_Isr[]

Prepare the register write list to configure MMA845x in non-FIFO and ISR mode.

Definition at line 59 of file mma845x_demo.c.

mma845x_Output_Values

const registerreadlist_t mma845x_Output_Values[]

Initial value:

= {
    {.readFrom = MMA845x_OUT_X_MSB, .numBytes = MMA845x_ACCEL_DATA_SIZE}, __END_READ_DATA__}

Prepare the register read list to read the raw Accel data from MMA845x.

Definition at line 108 of file mma845x_demo.c.

pGpioDriver

GENERIC_DRIVER_GPIO* pGpioDriver = &Driver_GPIO_KSDK

Definition at line 124 of file mma845x_demo.c.

shieldString

char shieldString[ADS_MAX_STRING_LENGTH] = {0}

Definition at line 119 of file mma845x_demo.c.

Referenced by main(), and process_host_command().