buzzer.c
Go to the documentation of this file.
00001 /*
00002  * buzzer.c
00003  *
00004  *  Created on: 14.09.2011
00005  *      Author: daniel
00006  */
00007 
00008 #include "buzzer.h"
00009 #include "main.h"
00010 #include "hardware.h"
00011 #include "system.h"
00012 #include "LL_HL_comm.h"
00013 #include "gpsmath.h"
00014 #include "LPC214x.h"
00015 
00016 //Buzzer active defines
00017 #define BU_INIT                         0x01
00018 #define BU_ERROR_GYRO           0x02
00019 #define BU_ERROR_ACC            0x04
00020 #define BU_ERROR_ADC            0x08
00021 #define BU_BATTERY                      0x10
00022 #define BU_COMPASS_FAILURE      0x20
00023 #define BU_WARNING_MAG_FS       0x40
00024 #define BU_WARNING_MAG_INC      0x80
00025 #define BU_GPS_BEEP                     0x100
00026 
00027 #define BUZZ_LENGTH             5       //50 ms
00028 #define BUZZ_PAUSE              5 //50 ms
00029 #define BUZZ_INTERVAL   200 //2 s
00030 #define BUZZ_MAG_WARNING_TIMEOUT 500 //mag warning for 5 seconds only
00031 #define BUZZ_NR_OF_WARNINGS             9 //total number of different buzzer signals (see BU_ defines above)
00032 
00033 
00034 void buzzer_handler(int battery_voltage, int warning_voltage)   //needs to be triggered at 100 Hz
00035 {
00036         unsigned int buz_active=0;
00037         static unsigned short error_cnt_mag_fs;
00038         static unsigned short error_cnt_mag_inc;
00039         static unsigned short error_cnt_compass;
00040 
00041         unsigned int buz_priority=0;
00042         static unsigned short buz_cnt=0;
00043 
00044         static int bat_cnt=0, bat_warning=0;
00045         static char bat_warning_enabled=0;
00046 
00047         if(++buz_cnt>=BUZZ_INTERVAL) buz_cnt=0;
00048 
00049         //battery warning
00050         if(++bat_cnt==100) bat_cnt=0;
00051 
00052         if(battery_voltage<warning_voltage)     //decide if it's really an empty battery
00053         {
00054                 if(bat_warning<ControllerCyclesPerSecond/5) bat_warning++;
00055                 else bat_warning_enabled=1;
00056         }
00057         else
00058         {
00059                 if(bat_warning>10) bat_warning-=2;
00060                 else
00061                 {
00062                         bat_warning_enabled=0;
00063                         buz_active&=~BU_BATTERY;
00064                 }
00065         }
00066         if(bat_warning_enabled)
00067         {
00068                 if(bat_cnt > ((1000 - warning_voltage + battery_voltage))/10) buz_active|=BU_BATTERY; //Beeper on
00069                 else buz_active&=~BU_BATTERY; //Beeper off
00070                 buz_priority|=BU_BATTERY;
00071         }
00072         else
00073         {
00074                 buz_active&=~BU_BATTERY;
00075                 buz_priority&=~BU_BATTERY;
00076         }
00077 
00078 #ifdef GPS_BEEP
00079         if(((GPS_Data.status&0xFF)!=3)&&(LL_1khz_attitude_data.RC_data[5]>200)) //no lock and in GPS mode
00080         {
00081                 buz_priority|=BU_GPS_BEEP;
00082                 if(buz_cnt<5) buz_active|=BU_GPS_BEEP;
00083                 else buz_active&=~BU_GPS_BEEP;
00084         }
00085         else
00086         {
00087                 buz_active&=~BU_GPS_BEEP;
00088                 buz_priority&=~BU_GPS_BEEP;
00089         }
00090 #endif
00091 
00092 #ifdef ERROR_BEEP
00093         //gyro error
00094         if((LL_1khz_attitude_data.flightMode&FM_CALIBRATION_ERROR_GYROS)&&(SYSTEM_initialized))
00095         {
00096                 buz_priority|=BU_ERROR_GYRO;
00097                 if(buz_cnt<155) buz_active|=BU_ERROR_GYRO;
00098                 else if(buz_cnt<160) buz_active&=~BU_ERROR_GYRO;
00099                 else if(buz_cnt<165) buz_active|=BU_ERROR_GYRO;
00100                 else buz_active&=~BU_ERROR_GYRO;
00101         }
00102         else
00103         {
00104                 buz_priority&=~BU_ERROR_GYRO;
00105                 buz_active&=~BU_ERROR_GYRO;
00106         }
00107 
00108         //ACC error
00109         if((LL_1khz_attitude_data.flightMode&FM_CALIBRATION_ERROR_ACC)&&(SYSTEM_initialized))
00110         {
00111                 buz_priority|=BU_ERROR_ACC;
00112                 if(buz_cnt<145) buz_active|=BU_ERROR_ACC;
00113                 else if(buz_cnt<150) buz_active&=~BU_ERROR_ACC;
00114                 else if(buz_cnt<155) buz_active|=BU_ERROR_ACC;
00115                 else if(buz_cnt<160) buz_active&=~BU_ERROR_ACC;
00116                 else if(buz_cnt<165) buz_active|=BU_ERROR_ACC;
00117                 else buz_active&=~BU_ERROR_ACC;
00118         }
00119         else
00120         {
00121                 buz_priority&=~BU_ERROR_ACC;
00122                 buz_active&=~BU_ERROR_ACC;
00123         }
00124 
00125         //ADC error
00126         if((LL_1khz_attitude_data.flightMode&FM_ADC_STARTUP_ERROR)&&(SYSTEM_initialized))
00127         {
00128                 buz_priority|=BU_ERROR_ADC;
00129                 if(buz_cnt<135) buz_active|=BU_ERROR_ADC;
00130                 else if(buz_cnt<140) buz_active&=~BU_ERROR_ADC;
00131                 else if(buz_cnt<145) buz_active|=BU_ERROR_ADC;
00132                 else if(buz_cnt<150) buz_active&=~BU_ERROR_ADC;
00133                 else if(buz_cnt<155) buz_active|=BU_ERROR_ADC;
00134                 else if(buz_cnt<160) buz_active&=~BU_ERROR_ADC;
00135                 else if(buz_cnt<165) buz_active|=BU_ERROR_ADC;
00136                 else buz_active&=~BU_ERROR_ADC;
00137         }
00138         else
00139         {
00140                 buz_priority&=~BU_ERROR_ADC;
00141                 buz_active&=~BU_ERROR_ADC;
00142         }
00143 
00144         //compass failure: warn 3 seconds only
00145         if((LL_1khz_attitude_data.flightMode&FM_COMPASS_FAILURE)&&(SYSTEM_initialized)&&(error_cnt_compass++<400))
00146         {
00147                 buz_priority|=BU_COMPASS_FAILURE;
00148                 if(buz_cnt%100<5) buz_active|=BU_COMPASS_FAILURE;
00149                 else if(buz_cnt%100<10) buz_active&=~BU_COMPASS_FAILURE;
00150                 else if(buz_cnt%100<15) buz_active|=BU_COMPASS_FAILURE;
00151                 else if(buz_cnt%100<20) buz_active&=~BU_COMPASS_FAILURE;
00152                 else if(buz_cnt%100<25) buz_active|=BU_COMPASS_FAILURE;
00153                 else if(buz_cnt%100<30) buz_active&=~BU_COMPASS_FAILURE;
00154                 else if(buz_cnt%100<35) buz_active|=BU_COMPASS_FAILURE;
00155                 else if(buz_cnt%100<40) buz_active&=~BU_COMPASS_FAILURE;
00156                 else if(buz_cnt%100<45) buz_active|=BU_COMPASS_FAILURE;
00157                 else if(buz_cnt%100<50) buz_active&=~BU_COMPASS_FAILURE;
00158                 else buz_active&=~BU_COMPASS_FAILURE;
00159         }
00160         else
00161         {
00162                 buz_priority&=~BU_COMPASS_FAILURE;
00163                 buz_active&=~BU_COMPASS_FAILURE;
00164         }
00165 
00166         //mag fieldstrength warning: warn 3 times only
00167         if((LL_1khz_attitude_data.flightMode&FM_MAG_FIELD_STRENGTH_ERROR)&&(SYSTEM_initialized)&&(error_cnt_mag_fs++<400))
00168         {
00169                 buz_priority|=BU_WARNING_MAG_FS;
00170                 if(buz_cnt%100<5) buz_active|=BU_WARNING_MAG_FS;
00171                 else if(buz_cnt%100<10) buz_active&=~BU_WARNING_MAG_FS;
00172                 else if(buz_cnt%100<15) buz_active|=BU_WARNING_MAG_FS;
00173                 else if(buz_cnt%100<20) buz_active&=~BU_WARNING_MAG_FS;
00174                 else if(buz_cnt%100<25) buz_active|=BU_WARNING_MAG_FS;
00175                 else if(buz_cnt%100<30) buz_active&=~BU_WARNING_MAG_FS;
00176                 else buz_active&=~BU_WARNING_MAG_FS;
00177         }
00178         else
00179         {
00180                 buz_priority&=~BU_WARNING_MAG_FS;
00181                 buz_active&=~BU_WARNING_MAG_FS;
00182         }
00183 
00184         //mag inclination warning: warn 3 times only
00185         if((LL_1khz_attitude_data.flightMode&FM_MAG_INCLINATION_ERROR)&&(SYSTEM_initialized)&&(error_cnt_mag_inc++<400))
00186         {
00187                 buz_priority|=BU_WARNING_MAG_INC;
00188                 if(buz_cnt%100<5) buz_active|=BU_WARNING_MAG_INC;
00189                 else if(buz_cnt%100<10) buz_active&=~BU_WARNING_MAG_INC;
00190                 else if(buz_cnt%100<15) buz_active|=BU_WARNING_MAG_INC;
00191                 else if(buz_cnt%100<20) buz_active&=~BU_WARNING_MAG_INC;
00192                 else if(buz_cnt%100<25) buz_active|=BU_WARNING_MAG_INC;
00193                 else if(buz_cnt%100<30) buz_active&=~BU_WARNING_MAG_INC;
00194                 else if(buz_cnt%100<35) buz_active|=BU_WARNING_MAG_INC;
00195                 else if(buz_cnt%100<40) buz_active&=~BU_WARNING_MAG_INC;
00196                 else buz_active&=~BU_WARNING_MAG_INC;
00197         }
00198         else
00199         {
00200                 buz_priority&=~BU_WARNING_MAG_INC;
00201                 buz_active&=~BU_WARNING_MAG_INC;
00202         }
00203 
00204 
00205 #endif
00206 
00207 #ifdef INIT_BEEP
00208 
00209                 if(!SYSTEM_initialized)
00210                 {
00211                         buz_priority|=BU_INIT;
00212                         if(buz_cnt%100<5) buz_active|=BU_INIT;
00213                         else if(buz_cnt%100<10) buz_active&=~BU_INIT;
00214                         else if(buz_cnt%100<15) buz_active|=BU_INIT;
00215                         else buz_active&=~BU_INIT;
00216                 }
00217                 else
00218                 {
00219                         buz_active&=~BU_INIT;
00220                         buz_priority&=~BU_INIT;
00221                 }
00222 #endif
00223 
00224         //buzzer control
00225         for(unsigned char i=0;i<BUZZ_NR_OF_WARNINGS; i++)
00226         {
00227                 if(buz_priority&(1<<i))
00228                 {
00229                         buz_active&=(1<<i);
00230                         i=BUZZ_NR_OF_WARNINGS;
00231                 }
00232         }
00233 
00234         if(buz_active) buzzer(ON);
00235         else buzzer(OFF);
00236 }
00237 
00238 
00239 void buzzer(unsigned char offon)
00240 {
00241 
00242         if(offon)       //beeper on
00243         {
00244                 IOSET1 = (1<<17);
00245         }
00246         else
00247         {
00248                 IOCLR1 = (1<<17);
00249         }
00250 }
00251 


asctec_hl_firmware
Author(s): Markus Achtelik, Michael Achtelik, Stephan Weiss, Laurent Kneip
autogenerated on Tue Dec 17 2013 11:39:27