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1 ingob 1
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// + Copyright (c) 04.2007 Holger Buss
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// + Nur für den privaten Gebrauch
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// + www.MikroKopter.com
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// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// + Es gilt für das gesamte Projekt (Hardware, Software, Binärfiles, Sourcecode und Dokumentation),
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// + dass eine Nutzung (auch auszugsweise) nur für den privaten und nicht-kommerziellen Gebrauch zulässig ist.
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// + Sollten direkte oder indirekte kommerzielle Absichten verfolgt werden, ist mit uns (info@mikrokopter.de) Kontakt
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// + bzgl. der Nutzungsbedingungen aufzunehmen.
1 ingob 10
// + Eine kommerzielle Nutzung ist z.B.Verkauf von MikroKoptern, Bestückung und Verkauf von Platinen oder Bausätzen,
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// + Verkauf von Luftbildaufnahmen, usw.
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// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// + Werden Teile des Quellcodes (mit oder ohne Modifikation) weiterverwendet oder veröffentlicht,
1 ingob 14
// + unterliegen sie auch diesen Nutzungsbedingungen und diese Nutzungsbedingungen incl. Copyright müssen dann beiliegen
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// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// + Sollte die Software (auch auszugesweise) oder sonstige Informationen des MikroKopter-Projekts
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// + auf anderen Webseiten oder Medien veröffentlicht werden, muss unsere Webseite "http://www.mikrokopter.de"
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// + eindeutig als Ursprung verlinkt und genannt werden
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// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// + Keine Gewähr auf Fehlerfreiheit, Vollständigkeit oder Funktion
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// + Benutzung auf eigene Gefahr
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// + Wir übernehmen keinerlei Haftung für direkte oder indirekte Personen- oder Sachschäden
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// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// + Die Portierung der Software (oder Teile davon) auf andere Systeme (ausser der Hardware von www.mikrokopter.de) ist nur
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// + mit unserer Zustimmung zulässig
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// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// + Die Funktion printf_P() unterliegt ihrer eigenen Lizenz und ist hiervon nicht betroffen
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// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// + Redistributions of source code (with or without modifications) must retain the above copyright notice,
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// + this list of conditions and the following disclaimer.
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// +   * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived
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// +     from this software without specific prior written permission.
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// +   * The use of this project (hardware, software, binary files, sources and documentation) is only permittet
1 ingob 34
// +     for non-commercial use (directly or indirectly)
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// +     Commercial use (for excample: selling of MikroKopters, selling of PCBs, assembly, ...) is only permitted
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// +     with our written permission
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// +   * If sources or documentations are redistributet on other webpages, out webpage (http://www.MikroKopter.de) must be
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// +     clearly linked as origin
1 ingob 39
// +   * porting to systems other than hardware from www.mikrokopter.de is not allowed
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// +  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// +  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// +  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// +  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// +  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// +  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// +  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// +  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// +  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// +  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// +  POSSIBILITY OF SUCH DAMAGE.
1 ingob 51
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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#include <avr/boot.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include "main.h"
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#include "timer0.h"
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#include "timer2.h"
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#include "uart0.h"
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#include "uart1.h"
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#include "led.h"
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#include "menu.h"
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#include "fc.h"
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#include "rc.h"
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#include "analog.h"
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#include "printf_P.h"
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#ifdef USE_KILLAGREG
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#include "mm3.h"
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#endif
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#ifdef USE_NAVICTRL
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#include "spi.h"
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#endif
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#ifdef USE_MK3MAG
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#include "mk3mag.h"
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#endif
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#include "twimaster.h"
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#include "eeprom.h"
1 ingob 80
 
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uint8_t BoardRelease = 10;
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uint8_t CPUType = ATMEGA644;
1 ingob 84
 
819 hbuss 85
 
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uint8_t GetCPUType(void)
87
{   // works only after reset or power on when the registers have default values
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        uint8_t CPUType = ATMEGA644;
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        if( (UCSR1A == 0x20) && (UCSR1C == 0x06) ) CPUType = ATMEGA644P;  // initial Values for 644P after reset
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        return CPUType;
91
}
92
 
93
 
94
uint8_t GetBoardRelease(void)
1 ingob 95
{
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        uint8_t BoardRelease = 10;
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        // the board release is coded via the pull up or down the 2 status LED
296 holgerb 98
 
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    PORTB &= ~((1 << PORTB1)|(1 << PORTB0)); // set tristate
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    DDRB  &= ~((1 << DDB0)|(1 << DDB0)); // set port direction as input
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        _delay_loop_2(1000); // make some delay
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104
    switch( PINB & ((1<<PINB1)|(1<<PINB0)) )
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    {
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                case 0x00:
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                        BoardRelease = 10; // 1.0
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                        break;
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                case 0x01:
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                        BoardRelease = 11; // 1.1 or 1.2
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                        break;
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                case 0x02:
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                        BoardRelease = 20; // 2.0
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                        break;
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                case 0x03:
116
                        BoardRelease = 13; // 1.3
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                        break;
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                default:
119
                        break;
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        }
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        // set LED ports as output
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        DDRB |= (1<<DDB1)|(1<<DDB0);
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        RED_ON;
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        GRN_OFF;
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        return BoardRelease;
126
}
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129
int16_t main (void)
130
{
131
        unsigned int timer;
132
 
133
        // disable interrupts global
134
        cli();
135
 
136
        // analyze hardware environment
137
        CPUType = GetCPUType();
138
        BoardRelease = GetBoardRelease();
139
 
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        // disable watchdog
1 ingob 141
    MCUSR &=~(1<<WDRF);
142
    WDTCSR |= (1<<WDCE)|(1<<WDE);
143
    WDTCSR = 0;
144
 
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    BeepTime = 2000;
1 ingob 146
 
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        PPM_in[CH_GAS] = 0;
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        StickYaw = 0;
149
        StickRoll = 0;
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        StickNick = 0;
1 ingob 151
 
936 killagreg 152
    RED_OFF;
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154
        // initalize modules
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        LED_Init();
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    TIMER0_Init();
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    TIMER2_Init();
158
        USART0_Init();
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        if(CPUType == ATMEGA644P) USART1_Init();
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    RC_Init();
1 ingob 161
        ADC_Init();
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        I2C_Init();
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        #ifdef USE_NAVICTRL
164
        SPI_MasterInit();
165
        #endif
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        #ifdef USE_KILLAGREG
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        MM3_Init();
168
        #endif
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        #ifdef USE_MK3MAG
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        MK3MAG_Init();
171
        #endif
172
 
173
        // enable interrupts global
1 ingob 174
        sei();
175
 
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        printf("\n\rFlightControl");
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        printf("\n\rHardware: %d.%d", BoardRelease/10, BoardRelease%10);
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        if(CPUType == ATMEGA644P)
179
        printf("\r\n     CPU: Atmega644p");
180
        else
181
        printf("\r\n     CPU: Atmega644");
182
        printf("\n\rSoftware: V%d.%d%c",VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH + 'a');
1 ingob 183
        printf("\n\r==============================");
184
        GRN_ON;
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        // Parameter Set handling
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        ParamSet_Init();
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        if(GetParamWord(PID_ACC_NICK) > 1023)
190
        {
191
                printf("\n\rACC not calibrated!");
192
        }
1 ingob 193
 
886 killagreg 194
        //wait for a short time (otherwise the RC channel check won't work below)
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        timer = SetDelay(500);
196
        while(!CheckDelay(timer));
197
 
198
        if(ParamSet.GlobalConfig & CFG_HEIGHT_CONTROL)
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        {
200
                printf("\n\rCalibrating air pressure sensor..");
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                timer = SetDelay(1000);
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                SearchAirPressureOffset();
203
                while (!CheckDelay(timer));
204
                printf("OK\n\r");
1 ingob 205
        }
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        #ifdef USE_NAVICTRL
208
        printf("\n\rSupport for NaviCtrl");
209
        #endif
210
 
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        #ifdef USE_KILLAGREG
212
        printf("\n\rSupport for MicroMag3 Compass");
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        #endif
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        #ifdef USE_MK3MAG
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        printf("\n\rSupport for MK3MAG Compass");
217
        #endif
218
 
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        #if (defined (USE_KILLAGREG) || defined (USE_MK3MAG))
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        if(CPUType == ATMEGA644P) printf("\n\rSupport for GPS at 2nd UART");
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        else                      printf("\n\rSupport for GPS at 1st UART");
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        #endif
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        SetNeutral(NO_ACC_CALIB);
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        RED_OFF;
1 ingob 228
 
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        BeepTime = 2000;
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        ExternControl.Digital[0] = 0x55;
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232
 
233
        printf("\n\rControl: ");
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        if (ParamSet.GlobalConfig & CFG_HEADING_HOLD) printf("HeadingHold");
1 ingob 235
        else printf("Neutral");
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1 ingob 237
        printf("\n\n\r");
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        LCD_Clear();
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        I2CTimeout = 5000;
1 ingob 242
        while (1)
243
        {
1180 killagreg 244
                if(UpdateMotor && ADReady)      // control interval
245
                {
246
                        UpdateMotor = 0; // reset Flag, is enabled every 2 ms by ISR of timer0
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                        //J4HIGH;
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                        MotorControl();
250
                        //J4LOW;
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                        SendMotorData(); // the flight control code
253
                        RED_OFF;
886 killagreg 254
 
255
 
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257
                        if(PcAccess) PcAccess--;
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                        else
259
                        {
260
                                ExternControl.Config = 0;
261
                                ExternStickNick= 0;
262
                                ExternStickRoll = 0;
263
                                ExternStickYaw = 0;
264
                        }
265
 
266
                        if(!I2CTimeout)
267
                        {
886 killagreg 268
                                I2CTimeout = 5;
269
                                I2C_Reset();
936 killagreg 270
                                if((BeepModulation == 0xFFFF) && (MKFlags & MKFLAG_MOTOR_RUN) )
886 killagreg 271
                                {
272
                                        BeepTime = 10000; // 1 second
273
                                        BeepModulation = 0x0080;
274
                                }
275
                        }
276
                        else
277
                        {
278
                                I2CTimeout--;
936 killagreg 279
                                RED_OFF;
886 killagreg 280
                        }
281
 
1180 killagreg 282
                        // allow Serial Data Transmit if motors must not updated or motors are not running
283
                        if( !UpdateMotor || !(MKFlags & MKFLAG_MOTOR_RUN) )
886 killagreg 284
                        {
285
                                USART0_TransmitTxData();
286
                        }
1180 killagreg 287
                        USART0_ProcessRxData();
886 killagreg 288
 
289
                        if(CheckDelay(timer))
290
                        {
1180 killagreg 291
                                if(UBat < ParamSet.LowVoltageWarning)
292
                                {
954 killagreg 293
                                        BeepModulation = 0x0300;
952 killagreg 294
                                        if(!BeepTime )
886 killagreg 295
                                        {
296
                                                BeepTime = 6000; // 0.6 seconds
297
                                        }
1180 killagreg 298
                                }
886 killagreg 299
                                #ifdef USE_NAVICTRL
300
                                SPI_StartTransmitPacket();
301
                                SendSPI = 4;
302
                                #endif
303
                                timer = SetDelay(20); // every 20 ms
1180 killagreg 304
                        }
936 killagreg 305
 
1180 killagreg 306
                        LED_Update();
307
                        //J4LOW;
886 killagreg 308
                }
723 hbuss 309
 
886 killagreg 310
                #ifdef USE_NAVICTRL
311
                if(!SendSPI)
312
                {       // SendSPI is decremented in timer0.c with a rate of 9.765 kHz.
313
                        // within the SPI_TransmitByte() routine the value is set to 4.
314
                        // I.e. the SPI_TransmitByte() is called at a rate of 9.765 kHz/4= 2441.25 Hz,
315
                        // and therefore the time of transmission of a complete spi-packet (32 bytes) is 32*4/9.765 kHz = 13.1 ms.
316
                        SPI_TransmitByte();
317
                }
318
                #endif
1180 killagreg 319
        }
886 killagreg 320
        return (1);
1 ingob 321
}
322