Meter Calibration routine. More...

Macros
#define	USART USARTC1
	Select the USART to be used.
#define	USART_PORT PORTC
	Select which Port is used as USART.
#define	UART_BSCALE_VALUE 0
	Configure USART Scale factor. Here,Selected as Zero.
#define	UART_BSEL_VALUE 51
	Configure for Baud Rate Value E.g.:Target: Internal RC 32MHz (default) For 38400bps, UBRR = 32MHz/(16*38400)-1 = 51.08.
#define	UART_CHARACTER_SIZE USART_CHSIZE_8BIT_gc
	Define UART Character Size.
#define	UART_PARITY_MODE_SIZE USART_PMODE_DISABLED_gc
	Define UART Parity Mode.
#define	OMEGA (float)0.07853982
	Define OMEGA = (2 * pi * (Freq / Fsampling) )

Functions
void	calibrate_current (void)
void	calibrate_no_load (void)
void	calibrate_phase (void)
void	calibrate_time (void)
void	calibrate_time_date (void)
void	calibrate_date (void)
void	calibrate_voltage (void)
void	calibrate_watt (void)
void	phase_calc (float, uint8_t)
void	read_tx_array (uint8_t cnt)
void	uart_getdata (uint8_t)
void	uart_print (void)

Variables
uint8_t	rx_buffer [10]

Detailed Description

Meter Calibration routine.

Application note:: AVR1631: Energy Meter Reference Design with ATxmega32A4

Documentation: For comprehensive code documentation, supported compilers, compiler settings and supported devices see readme.html

Author: Atmel Corporation: http://www.atmel.com
Support email: avr@a.nosp@m.tmel.nosp@m..com

$Revision: 1.0
$Date: 2012-07-01 10:10:10 +0530

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

The name of ATMEL may not be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition in file meter_calibration.h.

Function Documentation

void calibrate_current ( void )

brief This function take the average of current for 30sec, caluculate the shunt constant and stores the calibration value into eeprom

/param volt_input holds the input data from the user /param calibration_temp accumulates the raw voltage value for calibration

Definition at line 309 of file meter_calibration.c.

void calibrate_date ( void )

brief This function updates the structure 'rtcTime' with the new date received through UART,

Definition at line 206 of file meter_calibration.c.

void calibrate_no_load ( void )

brief This function take the average of current at noload for 30sec, caluculate the offset current value and stores the calibration value into eeprom

/param calibration_temp accumulates the raw current value for calibration /param calibration_watt accumulates the raw active power value for calibration

Definition at line 220 of file meter_calibration.c.

void calibrate_phase ( void )

brief This function take the average of power factor for 30sec, caluculate the phase constants and stores the calibration value into eeprom

/param current_input holds the input data from the user /param calibration_temp accumulates the raw voltage value for calibration /param pf_temp calculates the actual power factor for phase calibration

Definition at line 505 of file meter_calibration.c.

void calibrate_time ( void )

brief This function updates the structure 'rtcTime' with the new time received through UART, RTC starts running with this new time

Definition at line 195 of file meter_calibration.c.

void calibrate_time_date ( void )

brief This function updates the date and time received through UART, RTC starts running with this new time

Definition at line 183 of file meter_calibration.c.

void calibrate_voltage ( void )

brief This function take the average of voltage for 30sec, caluculate the volt constant and stores the calibration value into eeprom

/param volt_input holds the input data from the user /param calibration_temp accumulates the raw voltage value for calibration

Definition at line 271 of file meter_calibration.c.

void calibrate_watt ( void )

brief This function take the average of active power for 30sec, caluculate the watt constant and stores the calibration value into eeprom

/param watt_input holds the input data from the user /param calibration_watt accumulates the raw active power for calibration

Definition at line 405 of file meter_calibration.c.

void phase_calc	(	float	pf_avg,
		uint8_t	g_stage
	)

brief This function calculate the beta(B1) and A1 values

Definition at line 592 of file meter_calibration.c.

void read_tx_array ( uint8_t cnt )

brief This function load the array from flash

Parameters

tx_read[] holds the data to be transmitted through uart

Definition at line 172 of file meter_calibration.c.

void uart_getdata ( uint8_t tx )

brief This function collect the calibration data from the user through UART

Parameters

rx_complete_flag is set on receiving complete data from the user

Definition at line 149 of file meter_calibration.c.

void uart_print ( void )

brief This function send the character in tx_read array into uart buffer

Definition at line 133 of file meter_calibration.c.

Macros

Functions

Variables

Detailed Description

Function Documentation