src/led.c
author oremeq
Fri, 12 May 2006 22:14:03 +0200
changeset 3 d9cf34cd6823
parent 0 4472ee7c6c3e
child 31 a82b70738e5c
permissions -rw-r--r--
ADDED LED to TESTMASTERSLAVE. It looks nice!
Some code for the NVRAM support
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/*
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This file is part of CanFestival, a library implementing CanOpen Stack.
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 Author: CANopen Canada (canfestival@canopencanada.ca)
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See COPYING file for copyrights details.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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	DS-303-3
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	LED implementation
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <signal.h>
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#include <applicfg.h>
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#include <data.h>
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#include <can_driver.h>
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#include "led.h"
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void led_start_timer(CO_Data *, UNS32 t0);
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void led_stop_timer(void);
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void led_set_green(UNS8 on);
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void led_set_red(UNS8 on);
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void led_callback(CO_Data* d, UNS32 id);
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// 0 = always off, 1 = always on, 2 = flashing
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static UNS8 led_state_red, led_state_green; 
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static UNS16 led_sequence_red, led_seq_index_red;
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static UNS16 led_sequence_green, led_seq_index_green;
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static UNS8 led_error_code = LED_NO_ERROR;
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const char *led_sequence_table[6] = // up and downs of the sequence
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{
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	"01",           // flickering
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	"01",           // blinking
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	"100000",       // single flash
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	"10100000",     // double flash
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	"1010100000",   // triple flash
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	"101010100000"  // quadruple flash
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};
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void led_set_state(CO_Data *d, int state)
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{
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printf("led_set_state(%x)\n", state);
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0
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	switch(state)
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	{
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		case Initialisation:
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/*
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	must create a timer for the leds with the scheduler
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*/
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			break;
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		case LED_AUTOBITRATE:
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			led_state_green = 2;
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			led_sequence_green = 0;
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			break;
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		case Pre_operational:
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			led_state_green = 2;
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			led_sequence_green = 1;
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			break;
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		case Stopped:
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			led_state_green = 2;
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			led_sequence_green = 2;
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			break;
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		case LED_PRG_DOWNLOAD:
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			led_state_green = 2;
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			led_sequence_green = 4;
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			break;
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		case Operational:
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			led_state_green = 1;
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			break;
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	}
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	if (state == LED_AUTOBITRATE)
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		led_start_timer(d, 50);
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	else if (led_state_green < 2  &&  led_state_red < 2)
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	{
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		led_stop_timer();
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		//led_set_green(led_state_green);
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		//led_set_red(led_state_red);
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	}
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	else
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		led_start_timer(d, 200);
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}
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void led_set_error(CO_Data *d, UNS8 error)
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{
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	if (error == LED_NO_ERROR)
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	{
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		led_error_code = error;
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		led_state_green = 0;
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	}
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	else if (error == LED_AUTOBITRATE)
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	{
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		led_error_code = error;
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		led_state_red = 2;
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		led_sequence_red = 0;
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		led_start_timer(d, 50);
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	}
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	else if (error > led_error_code)
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	{
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		led_error_code = error;
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		if (error & LED_INVALID_CONFIG)
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		{
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			led_state_red = 2;
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			led_sequence_red = 1;
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		}
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		else if (error & LED_WARNING_LIMIT_REACH)
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		{
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			led_state_red = 2;
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			led_sequence_red = 2;
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		}
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		else if (error & LED_ERROR_CTRL_EVENT)
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		{
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			led_state_red = 2;
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			led_sequence_red = 3;
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		}
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		else if (error & LED_SYNC_ERROR)
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		{
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			led_state_red = 2;
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			led_sequence_red = 4;
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		}
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		else if (error & LED_EVENT_TIMER_ERROR)
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		{
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			led_state_red = 2;
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			led_sequence_green = 5;
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		}
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		else if (error & LED_BUS_OFF)
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		{
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			led_state_green = 1;
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		}
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		led_start_timer(d, 200);
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		//led_set_red(led_state_red);
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	}
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	if (led_state_green < 2  &&  led_state_red < 2)
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	{
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		led_stop_timer();
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		//led_set_green(led_state_green);
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		//led_set_red(led_state_red);
0
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	}
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}
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void led_start_timer(CO_Data* d, UNS32 tm)
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{
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	SetAlarm(d, 0, &led_callback, MS_TO_TIMEVAL(tm), MS_TO_TIMEVAL(tm));
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	led_seq_index_red = 0;
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	led_seq_index_green = 0;
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}
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void led_stop_timer(void)
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{
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}
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void led_callback(CO_Data *d, UNS32 id)
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{
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	UNS8 bits = 0;
0
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	// RED LED
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	if (led_sequence_table[led_sequence_red][led_seq_index_red] == '1')
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	{
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		if (led_state_red > 0)
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			bits = 1;
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			/* led_set_red(1); */
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	}
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	else	
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	{	
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		/*if (led_state_red != 1)
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			led_set_red(0);*/
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	}
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	led_seq_index_red++;
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	if (led_seq_index_red > strlen(led_sequence_table[led_sequence_red]))
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		led_seq_index_red = 0;
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	// GREEN LED
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	if (led_sequence_table[led_sequence_green][led_seq_index_green] == '1')
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	{
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		if (led_state_green > 0)
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			bits = bits | 2;
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			/* led_set_green(1); */
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	}
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	else	
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	{	
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		/* if (led_state_green != 1)
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			led_set_green(0); */
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	}
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	led_seq_index_green++;
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	if (led_seq_index_green > strlen(led_sequence_table[led_sequence_green]))
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		led_seq_index_green = 0;
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	led_set_redgreen(d, bits);
0
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}
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/*
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char state(state);
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Input function to set all the bihaviour indicator
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typical state are:
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	NoError
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		RedLED=off
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	AutoBitRate_LSS
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		RedLED=flickering
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		GreenLED=flickering
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	InvalidConfiguration
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		RedLED=blinking
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	WarningLimitReached
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		RedLED=singleflash
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	ErrorControlEvent
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		RedLED=doubleflash
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	SyncError
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		RedLED=tripleflash
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	EventTimerError
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		RedLED=quadrupleflash
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	BusOFF
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		RedLED=on
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	PRE_OPERATIONAL	
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		GreenLED=blinking
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	STOPPED
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		GreenLED=singleflash
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	Programm_Firmware_download
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		GreenLED=tripleflash
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	OPERATIONNAL
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		GreenLED=on
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*/
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/*
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case LEDbihaviour:
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	on
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	flickeringerror
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		RedLED(on)
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		RedLED(off)
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	flickeringerror
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		GreenLED(off)
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		GreenLED(on)
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	blinking
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	singleflash
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	doubleflash
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	tripleflash
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	quadrupleflash
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	off
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*/
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/*
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char  LED(bitLEDs);
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*/
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/*
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Output function to call the driver.
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	if bit=0, then turn LED Off
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	if bit=1, then turn LED On
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bit#	color		name
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0	red		error/status
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1	green		run/status
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2
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3
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4
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5
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6	
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7
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*/
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