meter.h File Reference

Meter Calibration routine. More...

#include <ioavr.h>
#include <math.h>
#include "clksys_driver.h"
#include "adc_driver.h"
#include "rtc_driver.h"
#include "meter_calculations.h"
#include "meter_calibration.h"
#include "meter_initialisation.h"
#include "meter_lcd_module.h"
#include "meter_rtc.h"
#include "avr_compiler.h"

Go to the source code of this file.

Data Structures
struct	coefficient

Macros
#define	RTC_CYCLES_1S   1024
#define	TAMPER_CURRENT_REVERSAL   PIN0_bm
#define	TAMPER_EARTH_FAULT   PIN1_bm
#define	TAMPER_NEUTRAL_CUT   PIN3_bm
#define	F_CPU   32000000UL
#define	F_TIMER   500000UL
#define	F_SAMPLING   124
#define	POWERED_UP   0
#define	POWER_OFF_DETECTED   1
#define	POWER_OFF   2
#define	POWER_ON_DETECTED   2
#define	eeprom   eeprom_t
#define	meter   meter_t

Functions
void	tamper_check (void)
int16_t	adc_iadc_debug (void)
int16_t	adc_vadc_debug (void)

Variables
uint8_t	rtc_flag
uint8_t	cover_open_flag
__eeprom struct coefficient	eeprom_t
struct coefficient	meter_t
int16_t	debug_count
int16_t	debug_count1

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

Copyright (c) 2008, Atmel Corporation All rights reserved.

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

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

1. 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.

1. 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.h.

Function Documentation

void tamper_check

(

void

)

This function checks for different types of tampering such as earth fault current reversal, neutral cut, magnetic tampering

check for earth fault tamper (Load earthing)
compare the phase current is within 12% of the neutral current

if tampering persist for 15 secs update the led status

check the status for Current Reversal tampering

if tampering detected toggle the TAMPER_CURRENT_REVERSAL LED

check the status for Neutral CUT tampering and configure the status led

check the status of Magnetic tamper flag and update the LED

Definition at line 58 of file meter_task.c.