Tobias Berger / Mbed 2 deprecated Robocode

Tobis Programm forked to not destroy your golden files

Dependencies:   mbed

Fork of Robocode by PES 2 - Gruppe 1

source/Robot.cpp@42:08b3aea29254, 2017-04-11 (annotated)

Committer:
aeschsim
Date:
Tue Apr 11 13:34:36 2017 +0000
Revision:
42:08b3aea29254
Parent:
38:3526c36e4c73
Child:
43:9f291a496db8
new servo functions

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cittecla 34:40d8d29b44b8 1 // Roboter file
cittecla 34:40d8d29b44b8 2
cittecla 34:40d8d29b44b8 3
cittecla 34:40d8d29b44b8 4 #include "mbed.h"
cittecla 34:40d8d29b44b8 5 #include "Robot.h"
cittecla 34:40d8d29b44b8 6 #include "EncoderCounter.h"
cittecla 34:40d8d29b44b8 7 #include "LowpassFilter.h"
cittecla 34:40d8d29b44b8 8 #include "IMU.h"
cittecla 34:40d8d29b44b8 9
cittecla 34:40d8d29b44b8 10 #include "IRSensor.h"
cittecla 34:40d8d29b44b8 11
cittecla 34:40d8d29b44b8 12
cittecla 34:40d8d29b44b8 13 const float PERIOD = 0.001f; // period of control task, given in [s]
cittecla 34:40d8d29b44b8 14 const float COUNTS_PER_TURN = 1200.0f; // resolution of encoder counter
cittecla 34:40d8d29b44b8 15 const float LOWPASS_FILTER_FREQUENCY = 300.0f; // frequency of lowpass filter for actual speed values, given in [rad/s]
cittecla 34:40d8d29b44b8 16 const float KN = 40.0f; // speed constant of motor, given in [rpm/V]
cittecla 34:40d8d29b44b8 17 const float KP = 0.2f; // speed controller gain, given in [V/rpm]
cittecla 34:40d8d29b44b8 18 const float MAX_VOLTAGE = 12.0f; // supply voltage for power stage in [V]
cittecla 34:40d8d29b44b8 19 const float MIN_DUTY_CYCLE = 0.02f; // minimum allowed value for duty cycle (2%)
cittecla 34:40d8d29b44b8 20 const float MAX_DUTY_CYCLE = 0.98f; // maximum allowed value for duty cycle (98%)
cittecla 34:40d8d29b44b8 21 const float correction_value = 2.45f; // correction value for desired speed
cittecla 34:40d8d29b44b8 22
cittecla 34:40d8d29b44b8 23 LowpassFilter speedLeftFilter;
cittecla 34:40d8d29b44b8 24 LowpassFilter speedRightFilter;
cittecla 34:40d8d29b44b8 25
cittecla 34:40d8d29b44b8 26 //Motor stuff
cittecla 34:40d8d29b44b8 27 EncoderCounter counterLeft(PB_6, PB_7);
cittecla 34:40d8d29b44b8 28 EncoderCounter counterRight(PA_6, PC_7);
cittecla 34:40d8d29b44b8 29
cittecla 34:40d8d29b44b8 30 DigitalOut enableMotorDriver(PB_2);
cittecla 34:40d8d29b44b8 31 PwmOut pwmLeft(PA_8);
cittecla 34:40d8d29b44b8 32 PwmOut pwmRight(PA_9);
cittecla 34:40d8d29b44b8 33
cittecla 34:40d8d29b44b8 34 DigitalOut my_led(LED1);
cittecla 34:40d8d29b44b8 35
cittecla 34:40d8d29b44b8 36 //Periphery for distance sensors
cittecla 34:40d8d29b44b8 37 AnalogIn distance(PB_1);
cittecla 34:40d8d29b44b8 38 DigitalOut enable(PC_1);
cittecla 34:40d8d29b44b8 39 DigitalOut bit0(PH_1);
cittecla 34:40d8d29b44b8 40 DigitalOut bit1(PC_2);
cittecla 34:40d8d29b44b8 41 DigitalOut bit2(PC_3);
cittecla 34:40d8d29b44b8 42
cittecla 34:40d8d29b44b8 43 IRSensor sensors[6];
cittecla 34:40d8d29b44b8 44
cittecla 34:40d8d29b44b8 45 //indicator leds arround robot
cittecla 34:40d8d29b44b8 46 DigitalOut leds[] = { PC_8, PC_6, PB_12, PA_7, PC_0, PC_9 };
cittecla 34:40d8d29b44b8 47
cittecla 34:40d8d29b44b8 48
cittecla 34:40d8d29b44b8 49 //Periphery for the IMU
cittecla 34:40d8d29b44b8 50 SPI spi(PC_12, PC_11, PC_10);
cittecla 34:40d8d29b44b8 51 DigitalOut csG(PA_15);
cittecla 34:40d8d29b44b8 52 DigitalOut csXM(PD_2);
cittecla 34:40d8d29b44b8 53
cittecla 34:40d8d29b44b8 54 IMU imu(spi, csG, csXM);
cittecla 34:40d8d29b44b8 55
cittecla 34:40d8d29b44b8 56 //Periphery for I2C
cittecla 34:40d8d29b44b8 57 I2C i2c(PB_9, PB_8);
cittecla 34:40d8d29b44b8 58 DigitalOut Servo_enable(PA_10);
cittecla 34:40d8d29b44b8 59
cittecla 34:40d8d29b44b8 60
cittecla 34:40d8d29b44b8 61 short previousValueCounterRight = 0;
cittecla 34:40d8d29b44b8 62 short previousValueCounterLeft = 0;
cittecla 34:40d8d29b44b8 63
cittecla 34:40d8d29b44b8 64 float desiredSpeedLeft = 0;
cittecla 34:40d8d29b44b8 65 float desiredSpeedRight = 0;
cittecla 34:40d8d29b44b8 66
cittecla 34:40d8d29b44b8 67 float actualSpeedLeft;
cittecla 34:40d8d29b44b8 68 float actualSpeedRight;
cittecla 34:40d8d29b44b8 69
cittecla 34:40d8d29b44b8 70
cittecla 34:40d8d29b44b8 71
cittecla 34:40d8d29b44b8 72
cittecla 34:40d8d29b44b8 73 void Robot_init_all()
cittecla 34:40d8d29b44b8 74 {
cittecla 34:40d8d29b44b8 75 Speedcontroller_init();
cittecla 34:40d8d29b44b8 76 Sensor_init();
cittecla 34:40d8d29b44b8 77 }
cittecla 34:40d8d29b44b8 78
cittecla 34:40d8d29b44b8 79 //speed controll
cittecla 34:40d8d29b44b8 80 void Speedcontroller_init()
cittecla 34:40d8d29b44b8 81 {
cittecla 34:40d8d29b44b8 82 // Initialisieren der PWM Ausgaenge pwmLeft.period(0.00005f); // PWM Periode von 50 us
cittecla 34:40d8d29b44b8 83 pwmLeft.period(0.00005f); // Setzt die Periode auf 50 μs
cittecla 34:40d8d29b44b8 84 pwmRight.period(0.00005f);
cittecla 34:40d8d29b44b8 85 pwmLeft = 0.5f; // Duty-Cycle von 50% pwmRight.period(0.00005f); // PWM Periode von 50 us
cittecla 34:40d8d29b44b8 86 pwmRight = 0.5f; // Duty-Cycle von 50%
cittecla 34:40d8d29b44b8 87
cittecla 34:40d8d29b44b8 88 // Initialisieren von lokalen Variabeln
cittecla 34:40d8d29b44b8 89 previousValueCounterLeft = counterLeft.read();
cittecla 34:40d8d29b44b8 90 previousValueCounterRight = counterRight.read();
cittecla 34:40d8d29b44b8 91 speedLeftFilter.setPeriod(PERIOD);
cittecla 34:40d8d29b44b8 92 speedLeftFilter.setFrequency(LOWPASS_FILTER_FREQUENCY);
cittecla 34:40d8d29b44b8 93 speedRightFilter.setPeriod(PERIOD);
cittecla 34:40d8d29b44b8 94 speedRightFilter.setFrequency(LOWPASS_FILTER_FREQUENCY);
cittecla 34:40d8d29b44b8 95
cittecla 34:40d8d29b44b8 96 desiredSpeedLeft = 0.0f;
cittecla 34:40d8d29b44b8 97 desiredSpeedRight = 0.0f;
cittecla 34:40d8d29b44b8 98 actualSpeedLeft = 0.0f;
cittecla 34:40d8d29b44b8 99 actualSpeedRight = 0.0f;
cittecla 34:40d8d29b44b8 100
cittecla 34:40d8d29b44b8 101 Ticker t1;
cittecla 34:40d8d29b44b8 102 t1.attach( &speedCtrl, PERIOD);
cittecla 34:40d8d29b44b8 103
cittecla 34:40d8d29b44b8 104 //desiredSpeedLeft = 50.0f+correction_value; //50 RPM
cittecla 34:40d8d29b44b8 105 //desiredSpeedRight = -50.0f; //50 RPM
cittecla 34:40d8d29b44b8 106 enableMotorDriver = 1;
cittecla 34:40d8d29b44b8 107 }
cittecla 34:40d8d29b44b8 108
cittecla 34:40d8d29b44b8 109 void set_speed(float left, float right)
cittecla 34:40d8d29b44b8 110 {
cittecla 34:40d8d29b44b8 111 desiredSpeedLeft = left+correction_value; //50 RPM
cittecla 34:40d8d29b44b8 112 desiredSpeedRight = -right; //50 RPM
cittecla 34:40d8d29b44b8 113 }
cittecla 34:40d8d29b44b8 114
cittecla 34:40d8d29b44b8 115
cittecla 34:40d8d29b44b8 116 void speedCtrl()
cittecla 34:40d8d29b44b8 117 {
cittecla 34:40d8d29b44b8 118 // Berechnen die effektiven Drehzahlen der Motoren in [rpm]
cittecla 34:40d8d29b44b8 119 short valueCounterLeft = counterLeft.read();
cittecla 34:40d8d29b44b8 120 short valueCounterRight = counterRight.read();
cittecla 34:40d8d29b44b8 121 short countsInPastPeriodLeft = valueCounterLeft-previousValueCounterLeft;
cittecla 34:40d8d29b44b8 122 short countsInPastPeriodRight = valueCounterRight-previousValueCounterRight;
cittecla 34:40d8d29b44b8 123
cittecla 34:40d8d29b44b8 124 previousValueCounterLeft = valueCounterLeft;
cittecla 34:40d8d29b44b8 125 previousValueCounterRight = valueCounterRight;
cittecla 34:40d8d29b44b8 126 actualSpeedLeft = speedLeftFilter.filter((float)countsInPastPeriodLeft /COUNTS_PER_TURN/PERIOD*60.0f);
cittecla 34:40d8d29b44b8 127 actualSpeedRight = speedRightFilter.filter((float)countsInPastPeriodRight /COUNTS_PER_TURN/PERIOD*60.0f);
cittecla 34:40d8d29b44b8 128
cittecla 34:40d8d29b44b8 129 // Berechnen der Motorspannungen Uout
cittecla 34:40d8d29b44b8 130 float voltageLeft = KP*(desiredSpeedLeft-actualSpeedLeft)+desiredSpeedLeft/KN;
cittecla 34:40d8d29b44b8 131 float voltageRight = KP*(desiredSpeedRight-actualSpeedRight)+desiredSpeedRight/KN;
cittecla 34:40d8d29b44b8 132
cittecla 34:40d8d29b44b8 133 // Berechnen, Limitieren und Setzen der Duty-Cycle
cittecla 34:40d8d29b44b8 134 float dutyCycleLeft = 0.5f+0.5f*voltageLeft/MAX_VOLTAGE;
cittecla 34:40d8d29b44b8 135 if (dutyCycleLeft < MIN_DUTY_CYCLE) dutyCycleLeft = MIN_DUTY_CYCLE;
cittecla 34:40d8d29b44b8 136 else if (dutyCycleLeft > MAX_DUTY_CYCLE) dutyCycleLeft = MAX_DUTY_CYCLE;
cittecla 34:40d8d29b44b8 137
cittecla 34:40d8d29b44b8 138 pwmLeft = dutyCycleLeft;
cittecla 34:40d8d29b44b8 139 float dutyCycleRight = 0.5f+0.5f*voltageRight/MAX_VOLTAGE;
cittecla 34:40d8d29b44b8 140 if (dutyCycleRight < MIN_DUTY_CYCLE) dutyCycleRight = MIN_DUTY_CYCLE;
cittecla 34:40d8d29b44b8 141 else if (dutyCycleRight > MAX_DUTY_CYCLE) dutyCycleRight = MAX_DUTY_CYCLE;
cittecla 34:40d8d29b44b8 142
cittecla 34:40d8d29b44b8 143 pwmRight = dutyCycleRight;
cittecla 34:40d8d29b44b8 144 }
cittecla 34:40d8d29b44b8 145
cittecla 34:40d8d29b44b8 146 //Sensors
cittecla 34:40d8d29b44b8 147 void Sensor_init()
cittecla 34:40d8d29b44b8 148 {
cittecla 34:40d8d29b44b8 149 for( int ii = 0; ii<6; ++ii)
cittecla 34:40d8d29b44b8 150 sensors[ii].init(&distance, &bit0, &bit1, &bit2, ii);
cittecla 34:40d8d29b44b8 151 }
cittecla 34:40d8d29b44b8 152
cittecla 34:40d8d29b44b8 153 float getDistanceIR(int number)
cittecla 34:40d8d29b44b8 154 {
cittecla 34:40d8d29b44b8 155 return sensors[number];
cittecla 34:40d8d29b44b8 156 }
cittecla 34:40d8d29b44b8 157
cittecla 34:40d8d29b44b8 158 //IMU
cittecla 34:40d8d29b44b8 159 float read_acc_x()
cittecla 34:40d8d29b44b8 160 {
cittecla 34:40d8d29b44b8 161 return imu.readAccelerationX();
cittecla 34:40d8d29b44b8 162 }
cittecla 34:40d8d29b44b8 163
cittecla 34:40d8d29b44b8 164 float read_acc_y()
cittecla 34:40d8d29b44b8 165 {
cittecla 34:40d8d29b44b8 166 return imu.readAccelerationY();
cittecla 34:40d8d29b44b8 167 }
cittecla 34:40d8d29b44b8 168
cittecla 34:40d8d29b44b8 169 float read_acc_z()
cittecla 34:40d8d29b44b8 170 {
cittecla 34:40d8d29b44b8 171 return imu.readAccelerationZ();
cittecla 34:40d8d29b44b8 172 }
cittecla 34:40d8d29b44b8 173
cittecla 34:40d8d29b44b8 174 float read_gyr_x()
cittecla 34:40d8d29b44b8 175 {
cittecla 34:40d8d29b44b8 176 return imu.readGyroX();
cittecla 34:40d8d29b44b8 177 }
cittecla 34:40d8d29b44b8 178
cittecla 34:40d8d29b44b8 179 float read_gyr_y()
cittecla 34:40d8d29b44b8 180 {
cittecla 34:40d8d29b44b8 181 return imu.readGyroY();
cittecla 34:40d8d29b44b8 182 }
cittecla 34:40d8d29b44b8 183
cittecla 34:40d8d29b44b8 184 float read_gyr_z()
cittecla 34:40d8d29b44b8 185 {
cittecla 34:40d8d29b44b8 186 return imu.readGyroZ();
cittecla 34:40d8d29b44b8 187 }
cittecla 34:40d8d29b44b8 188
cittecla 34:40d8d29b44b8 189 float read_heading()
cittecla 34:40d8d29b44b8 190 {
cittecla 38:3526c36e4c73 191 double deg = (double)(180.0f/(double)M_PI*imu.readHeading());
cittecla 38:3526c36e4c73 192 return deg;
cittecla 34:40d8d29b44b8 193 }
cittecla 34:40d8d29b44b8 194
cittecla 34:40d8d29b44b8 195
cittecla 34:40d8d29b44b8 196 // Servo I2C
aeschsim 42:08b3aea29254 197 void init_servo(int freq) {
aeschsim 42:08b3aea29254 198 uint8_t mode1 = 0x00;
aeschsim 42:08b3aea29254 199 uint8_t mode2 = 0x01;
aeschsim 42:08b3aea29254 200
aeschsim 42:08b3aea29254 201 i2c.write(0x06); //0000 0110 - PCA reset
aeschsim 42:08b3aea29254 202 //freq *= 0.9;
aeschsim 42:08b3aea29254 203 float prescaleval = 25000000.0; //25MHz
aeschsim 42:08b3aea29254 204 prescaleval /= 4096.0; //12-Bit
aeschsim 42:08b3aea29254 205 prescaleval /= (float)freq;
aeschsim 42:08b3aea29254 206 prescaleval -= 1.0;
aeschsim 42:08b3aea29254 207 uint8_t prescale = floor(prescaleval +0.5);
aeschsim 42:08b3aea29254 208
aeschsim 42:08b3aea29254 209 uint8_t oldmode = i2c.read(mode1);
aeschsim 42:08b3aea29254 210 uint8_t newmode = (oldmode&0x7f) | 0x10;
aeschsim 42:08b3aea29254 211 i2c.write(mode1<<8 + newmode);
aeschsim 42:08b3aea29254 212 i2c.write(0xFE<<8 + prescale); //0xFE - Prescale-Register
aeschsim 42:08b3aea29254 213 i2c.write(mode1<<8 + oldmode);
aeschsim 42:08b3aea29254 214 delay(5);
aeschsim 42:08b3aea29254 215 i2c.write((mode1<<8) + (oldmode|0xA1));
aeschsim 42:08b3aea29254 216 }
aeschsim 42:08b3aea29254 217
aeschsim 42:08b3aea29254 218 void set_servo_position(int servo, int deg){
cittecla 34:40d8d29b44b8 219 i2c.write((0x40), &data, 2);
cittecla 34:40d8d29b44b8 220 }
cittecla 34:40d8d29b44b8 221
cittecla 34:40d8d29b44b8 222 void enable_servos(){
cittecla 34:40d8d29b44b8 223 Servo_enable = 1;
cittecla 34:40d8d29b44b8 224 }
cittecla 34:40d8d29b44b8 225
cittecla 34:40d8d29b44b8 226 void disable_servos(){
cittecla 34:40d8d29b44b8 227 Servo_enable = 0;
cittecla 34:40d8d29b44b8 228 }