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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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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);
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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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unsigned char bits = 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(bits);
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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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