This is an example application for i2c. User can use this app for i2c protocol specific requirements. More...

#include "MZ_sys_cmsis_os2.h"
#include "MZ_i2c_example.h"
#include "MZ_timer.h"
#include "MZ_print.h"
#include "MZ_i2c1_instance.h"
#include "MZ_error_handler.h"
#include "MZ_i2c.h"
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include "stm32l4xx_hal_i2c.h"

Macros
#define	I2C_APP_STACK_SIZE (1024)

#define	I2C_TX_TIME (pdMS_TO_TICKS(60000))

#define	I2C_TX_SIZE (10)

#define	RESP_BUF_LEN 10

#define	SI_SENSOR_BUF_LEN 50

Functions
static void	timer_cb (TimerHandle_t xTimer)
	Timer callback function for transmission of the data. More...

static void	i2c_app (void *arg)
	create the timer and starts if main RTOS scheduler started More...

mz_error_t	i2c_app_init (void)

mz_error_t	I2C_Write_Reg (uint8_t addr, uint8_t data)
	Function to write into the specific register. More...

mz_error_t	I2C_Read_Reg (uint8_t addr, uint32_t *buf)
	Function to read from the specific register. More...

void	reset_resp_counter ()
	Reset register. More...

mz_error_t	param_table_write (uint8_t addr, uint8_t data)
	Function to read from the specific register. More...

mz_error_t	SENSOR_Config ()
	Function to config the sensor. More...

mz_error_t	Sensor_cmd_data_conf (uint8_t addr, uint8_t data)
	Function to write data for Sensor Configuration. More...

void	SENSOR_Init ()
	Function Sensor Initialisation. More...

mz_error_t	Sensor_ReadID (uint8_t *buf)
	Function to read the content from ID register of SENSOR. More...

SISER_RCVD	SI_Read_UV ()
	Function to read the data from SENSOR. More...

int32_t	SENSOR_getUv (int32_t uv, SENSOR_Coeff_TypeDef *uk)
	Function to Conversion of Raw Data. More...

int32_t	SENSOR_calcPolyInner (int32_t input, int8_t fraction, uint16_t mag, int8_t shift)
	Function to Conversion of Raw Data. More...

int32_t	SENSOR_calcEvalPoly (int32_t x, int32_t y, uint8_t input_fraction, uint8_t output_fraction, uint8_t num_coeff, SENSOR_Coeff_TypeDef *kp)
	Function to Conversion of Raw Data. More...

void	calib_uv_index (float uv_raw_data)
	Function to calibrate the raw data. More...

uint16_t	string_copy (uint8_t dststr, uint8_t srcstr)
	Function to Copy the data from source to destination. More...

uint8_t	string_append (uint8_t srcstr, uint8_t apstr)
	Function to append the string. More...

uint16_t	Get_String_len (uint8_t *buf)
	Function to get string length. More...

void	int8buf_to_asciibuf (uint8_t destbuf, uint8_t srcbuf, uint16_t len)
	Function to Conversion of Int to ascii data. More...

Variables
static mz_thread_t	i2c_thread_id = NULL

static StaticTask_t	i2c_cb_mem

static StackType_t	i2c_stack [I2C_APP_STACK_SIZE]

static mz_semaphore_t	i2c_sema_id = NULL

static mzUint8	loc_buf [RESP_BUF_LEN]

static mzUint8	resp_buf [RESP_BUF_LEN]

static mzUint8	err_code

static mzUint8	write_sucess

static mzUint8	localBuf1 [SI_SENSOR_BUF_LEN]

static mzUint8	i2cLocBuf [SI_SENSOR_BUF_LEN]

static mzUint8	locstr1 [50]

static mzUint8	send_data [I2C_TX_SIZE]

mzUint8	buf [10]

mzUint32	uv_val

mzUint32	als_val1

mzUint32	als_val2

mzUint32	als_val3

SISER_RCVD	SI_resp_rcvd = SISER_NONE_RCVD

mzUint8	cnt =0

Detailed Description

This is an example application for i2c. User can use this app for i2c protocol specific requirements.

Date: Jul 14, 2021

Author: Mahendra & Kafeel

Definition in file MZ_i2c_example.c.

Macro Definition Documentation

◆ I2C_APP_STACK_SIZE

#define I2C_APP_STACK_SIZE (1024)

Definition at line 20 of file MZ_i2c_example.c.

◆ I2C_TX_TIME

#define I2C_TX_TIME (pdMS_TO_TICKS(60000))

Definition at line 21 of file MZ_i2c_example.c.

◆ I2C_TX_SIZE

#define I2C_TX_SIZE (10)

Definition at line 22 of file MZ_i2c_example.c.

◆ RESP_BUF_LEN

#define RESP_BUF_LEN 10

Definition at line 23 of file MZ_i2c_example.c.

◆ SI_SENSOR_BUF_LEN

#define SI_SENSOR_BUF_LEN 50

Definition at line 24 of file MZ_i2c_example.c.

Function Documentation

◆ timer_cb()

void timer_cb ( TimerHandle_t xTimer )

static

Timer callback function for transmission of the data.

Note: This function will notifies the user when timer expires

Definition at line 48 of file MZ_i2c_example.c.

◆ i2c_app()

void i2c_app ( void * arg )

static

create the timer and starts if main RTOS scheduler started

Parameters

arg void

Note: User can write the code for process the read data from I2C

Definition at line 60 of file MZ_i2c_example.c.

◆ i2c_app_init()

mz_error_t i2c_app_init ( void )

Definition at line 88 of file MZ_i2c_example.c.

◆ I2C_Write_Reg()

mz_error_t I2C_Write_Reg	(	uint8_t	addr,
		uint8_t	data
	)

Function to write into the specific register.

Parameters

addr	- address of the register
data	- data to be write

Return values

MZ_OK or MZ_FAIL

Definition at line 125 of file MZ_i2c_example.c.

◆ I2C_Read_Reg()

mz_error_t I2C_Read_Reg	(	uint8_t	addr,
		uint32_t *	buf
	)

Function to read from the specific register.

Parameters

addr	- address of the register
buf	- buffer which receives data from the register

Return values

MZ_OK or MZ_FAIL

Definition at line 148 of file MZ_i2c_example.c.

◆ reset_resp_counter()

void reset_resp_counter ( void )

Reset register.

Parameters

None

Return values

None

Definition at line 174 of file MZ_i2c_example.c.

◆ param_table_write()

mz_error_t param_table_write	(	uint8_t	addr,
		uint8_t	data
	)

Function to read from the specific register.

Parameters

addr	- address of the register
data	- buffer which receives data from the register

Return values

MZ_OK or MZ_FAIL

Definition at line 188 of file MZ_i2c_example.c.

◆ SENSOR_Config()

mz_error_t SENSOR_Config ( )

Function to config the sensor.

Parameters

None

Return values

MZ_OK/MZ_FAIL

Definition at line 248 of file MZ_i2c_example.c.

◆ Sensor_cmd_data_conf()

mz_error_t Sensor_cmd_data_conf	(	uint8_t	addr,
		uint8_t	data
	)

Function to write data for Sensor Configuration.

Parameters

addr	- address of the register
data	- buffer which receives data from the register

Return values

MZ_OK or MZ_FAIL

Definition at line 341 of file MZ_i2c_example.c.

◆ SENSOR_Init()

void SENSOR_Init ( )

Function Sensor Initialisation.

Parameters

NONE

Return values

NONE

Definition at line 358 of file MZ_i2c_example.c.

◆ Sensor_ReadID()

mz_error_t Sensor_ReadID ( uint8_t * buf )

Function to read the content from ID register of SENSOR.

Parameters

buf	- buffer which receives data from the ID register

Return values

MZ_OK or MZ_FAIL

Definition at line 374 of file MZ_i2c_example.c.

◆ SI_Read_UV()

SISER_RCVD SI_Read_UV ( void )

Function to read the data from SENSOR.

Parameters

NONE

Return values

SISER_VALID_RESP_RCVD or SISER_INVALID_RESP_RCVD

Definition at line 400 of file MZ_i2c_example.c.

◆ SENSOR_getUv()

int32_t SENSOR_getUv	(	int32_t	uv,
		SENSOR_Coeff_TypeDef *	uk
	)

Function to Conversion of Raw Data.

Parameters

uv	-Raw data.
uk	- Sensor Coefficient.

Return values

uvi-	Sensor Converted Data.

Definition at line 452 of file MZ_i2c_example.c.

◆ SENSOR_calcPolyInner()

int32_t SENSOR_calcPolyInner	(	int32_t	input,
		int8_t	fraction,
		uint16_t	mag,
		int8_t	shift
	)

Function to Conversion of Raw Data.

Parameters

input	-Raw data.
fraction	- Sensor fraction.
mag	- Sensor magnitude.
shift	- Sensor shifted.

Return values

value- Sensor data converted with polyInner.

Definition at line 467 of file MZ_i2c_example.c.

◆ SENSOR_calcEvalPoly()

int32_t SENSOR_calcEvalPoly	(	int32_t	x,
		int32_t	y,
		uint8_t	input_fraction,
		uint8_t	output_fraction,
		uint8_t	num_coeff,
		SENSOR_Coeff_TypeDef *	kp
	)

Function to Conversion of Raw Data.

Parameters

x	int32_t -Raw data.
y	int32_t - Sensor fraction.
input_fraction	uint8_t
output_fraction	uint8_t
num_coeff	uint8_t
kp	*SENSOR_Coeff_TypeDef.

Return values

value- Sensor data converted with calcEvalPoly.

Definition at line 493 of file MZ_i2c_example.c.

◆ calib_uv_index()

void calib_uv_index ( float uv_raw_data )

Function to calibrate the raw data.

Parameters

uv_raw_data float.

Return values

value- None.

Definition at line 560 of file MZ_i2c_example.c.

◆ string_copy()

uint16_t string_copy	(	uint8_t *	dststr,
		uint8_t *	srcstr
	)

Function to Copy the data from source to destination.

Parameters

dststr	-destination string.
srcstr	-source string.

Return values

value- string index.

Definition at line 580 of file MZ_i2c_example.c.

◆ string_append()

uint8_t string_append	(	uint8_t *	srcstr,
		uint8_t *	apstr
	)

Function to append the string.

Parameters

apstr	-append string.
srcstr	-source string.

Return values

value- string index.

Definition at line 596 of file MZ_i2c_example.c.

◆ Get_String_len()

uint16_t Get_String_len ( uint8_t * buf )

Function to get string length.

Parameters

buf -string.

Return values

len-	string length.

Definition at line 617 of file MZ_i2c_example.c.

◆ int8buf_to_asciibuf()

void int8buf_to_asciibuf	(	uint8_t *	destbuf,
		uint8_t *	srcbuf,
		uint16_t	len
	)

Function to Conversion of Int to ascii data.

Parameters

destbuf	-destination string.
srcbuf	-source string.
len	-string.

Return values

None.

Definition at line 633 of file MZ_i2c_example.c.

Variable Documentation

◆ i2c_thread_id

mz_thread_t i2c_thread_id = NULL

static

Definition at line 26 of file MZ_i2c_example.c.

◆ i2c_cb_mem

StaticTask_t i2c_cb_mem

static

Definition at line 27 of file MZ_i2c_example.c.

◆ i2c_stack

StackType_t i2c_stack[I2C_APP_STACK_SIZE]

static

Definition at line 28 of file MZ_i2c_example.c.

◆ i2c_sema_id

mz_semaphore_t i2c_sema_id = NULL

static

Definition at line 29 of file MZ_i2c_example.c.

◆ loc_buf

mzUint8 loc_buf[RESP_BUF_LEN]

static

Definition at line 30 of file MZ_i2c_example.c.

◆ resp_buf

mzUint8 resp_buf[RESP_BUF_LEN]

static

Definition at line 31 of file MZ_i2c_example.c.

◆ err_code

mzUint8 err_code

static

Definition at line 32 of file MZ_i2c_example.c.

◆ write_sucess

mzUint8 write_sucess

static

Definition at line 33 of file MZ_i2c_example.c.

◆ localBuf1

mzUint8 localBuf1[SI_SENSOR_BUF_LEN]

static

Definition at line 34 of file MZ_i2c_example.c.

◆ i2cLocBuf

mzUint8 i2cLocBuf[SI_SENSOR_BUF_LEN]

static

Definition at line 35 of file MZ_i2c_example.c.

◆ locstr1

mzUint8 locstr1[50]

static

Definition at line 36 of file MZ_i2c_example.c.

◆ send_data

mzUint8 send_data[I2C_TX_SIZE]

static

Definition at line 37 of file MZ_i2c_example.c.

◆ buf

mzUint8 buf[10]

Definition at line 38 of file MZ_i2c_example.c.

◆ uv_val

mzUint32 uv_val

Definition at line 39 of file MZ_i2c_example.c.

◆ als_val1

mzUint32 als_val1

Definition at line 39 of file MZ_i2c_example.c.

◆ als_val2

mzUint32 als_val2

Definition at line 39 of file MZ_i2c_example.c.

◆ als_val3

mzUint32 als_val3

Definition at line 39 of file MZ_i2c_example.c.

◆ SI_resp_rcvd

SISER_RCVD SI_resp_rcvd = SISER_NONE_RCVD

Definition at line 40 of file MZ_i2c_example.c.

◆ cnt

mzUint8 cnt =0

Definition at line 41 of file MZ_i2c_example.c.

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ I2C_APP_STACK_SIZE

◆ I2C_TX_TIME

◆ I2C_TX_SIZE

◆ RESP_BUF_LEN

◆ SI_SENSOR_BUF_LEN

Function Documentation

◆ timer_cb()

◆ i2c_app()

◆ i2c_app_init()

◆ I2C_Write_Reg()

◆ I2C_Read_Reg()

◆ reset_resp_counter()

◆ param_table_write()

◆ SENSOR_Config()

◆ Sensor_cmd_data_conf()

◆ SENSOR_Init()

◆ Sensor_ReadID()

◆ SI_Read_UV()

◆ SENSOR_getUv()

◆ SENSOR_calcPolyInner()

◆ SENSOR_calcEvalPoly()

◆ calib_uv_index()

◆ string_copy()

◆ string_append()

◆ Get_String_len()

◆ int8buf_to_asciibuf()

Variable Documentation

◆ i2c_thread_id

◆ i2c_cb_mem

◆ i2c_stack

◆ i2c_sema_id

◆ loc_buf

◆ resp_buf

◆ err_code

◆ write_sucess

◆ localBuf1

◆ i2cLocBuf

◆ locstr1

◆ send_data

◆ buf

◆ uv_val

◆ als_val1

◆ als_val2

◆ als_val3

◆ SI_resp_rcvd

◆ cnt