meter_lcd_module.c File Reference

Meter initialisation. More...

#include "meter.h"

Go to the source code of this file.

Functions
void	lcd_disp_key (void)
void	lcd_disp_date (void)
void	lcd_disp_time (void)
void	lcd_disp_energy (void)
void	lcd_disp_power_factor (int16_t pf)
void	lcd_disp_frequency (uint16_t freq)
void	lcd_disp_active_power (void)
void	lcd_disp_max_demand (void)
void	lcd_disp_apparent_power (void)
void	lcd_disp_voltage (void)
void	lcd_disp_current (void)
void	lcd_command (uint8_t cmd1, uint8_t cmd2)
void	lcd_data (uint8_t cmd, uint8_t lr_addr, uint8_t lr_data)
void	lcd_read_write (uint8_t cmd, uint8_t lr_addr, uint8_t lr_data)
void	lcd_clear_all (void)
void	lcd_show_all (void)

Variables
__eeprom RTC_BCD_t	eepromTime
uint16_t	number_arr [16] = {125,96,62,122,99,91,95,112,127,123,119,127,29,125,31,23}
	lookup table displaying the numbers to the lcd module

Detailed Description

Meter initialisation.

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_lcd_module.c.

Function Documentation

void lcd_clear_all

(

void

)

brief This function clear the lcd

Definition at line 462 of file meter_lcd_module.c.

void lcd_command	(	uint8_t	cmd1,
		uint8_t	cmd2
	)

brief This function writes the command 'cmd2' to the LCD please refer the lcd datasheet for details

Definition at line 319 of file meter_lcd_module.c.

void lcd_data	(	uint8_t	cmd,
		uint8_t	lr_addr,
		uint8_t	lr_data
	)

brief This function write the data 'lr_data' to the address lr_addr please refer the LCD datasheet for details

Definition at line 354 of file meter_lcd_module.c.

void lcd_disp_active_power

(

void

)

brief This function display the active power in LCD

Definition at line 220 of file meter_lcd_module.c.

void lcd_disp_apparent_power

(

void

)

brief This function display the apparent power in LCD

Definition at line 261 of file meter_lcd_module.c.

void lcd_disp_current

(

void

)

brief This function display the current in LCD

Definition at line 300 of file meter_lcd_module.c.

void lcd_disp_date

(

void

)

brief This function display the date in LCD

Definition at line 120 of file meter_lcd_module.c.

void lcd_disp_energy

(

void

)

brief This function display the energy in LCD

Definition at line 170 of file meter_lcd_module.c.

void lcd_disp_frequency

(

uint16_t

freq

)

brief This function display the line frequency in LCD

Definition at line 204 of file meter_lcd_module.c.

void lcd_disp_key

(

void

)

brief This function call the LCD display function based on the value in key_flag variable

 key_flag            function
     0               lcd_disp_time
     1               lcd_disp_date
     2               lcd_disp_voltage
     3               lcd_disp_current
     4               lcd_disp_active_power
     5               lcd_disp_apparent_power
     6               lcd_disp_power_factor
     7               lcd_disp_energy
     8               lcd_disp_max_demand
     9               lcd_disp_frequency
     10              lcd_show_all

clear the lcd display

shows the LCD page number

call the appropriate function based on the input from key_flag

Definition at line 69 of file meter_lcd_module.c.

void lcd_disp_max_demand

(

void

)

brief This function display the max demand in LCD

Definition at line 239 of file meter_lcd_module.c.

void lcd_disp_power_factor

(

int16_t

pf

)

brief This function display the power factor in LCD

Definition at line 188 of file meter_lcd_module.c.

void lcd_disp_time

(

void

)

brief This function display the time in LCD

Definition at line 145 of file meter_lcd_module.c.

void lcd_disp_voltage

(

void

)

brief This function display the voltage in LCD

Definition at line 281 of file meter_lcd_module.c.

void lcd_read_write	(	uint8_t	cmd,
		uint8_t	lr_addr,
		uint8_t	lr_data
	)

brief This function reads the address 'lr_addr' and add the 'lr_data' to the read data. The result is then written to the address 'lr_addr'

Definition at line 410 of file meter_lcd_module.c.

void lcd_show_all

(

void

)

brief This function sets all the segments in the display

Definition at line 475 of file meter_lcd_module.c.