mirror of https://github.com/ArduPilot/ardupilot
git-svn-id: https://arducopter.googlecode.com/svn/trunk@396 f9c3cf11-9bcb-44bc-f272-b75c42450872
This commit is contained in:
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009ef940c6
commit
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#ifdef __AVR_ATmega1280__
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/*
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APM2_RC.cpp - Radio Control Library for Ardupilot Mega. Arduino
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Code by Jordi Muñoz and Jose Julio. DIYDrones.com
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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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RC Input : PPM signal on IC4 pin
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RC Output : 11 Servo outputs (standard 20ms frame)
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Methods:
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Init() : Initialization of interrupts an Timers
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OutpuCh(ch, pwm) : Output value to servos (range : 900 - 2100us) ch = 0..10
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InputCh(ch) : Read a channel input value. ch = 0..7
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GetState() : Returns the state of the input. 1 => New radio frame to process
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Automatically resets when we call InputCh to read channels
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*/
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#include "APM2_RC.h"
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#define REVERSE 3050
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// Variable definition for Input Capture interrupt
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volatile uint16_t ICR4_old;
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volatile uint8_t PPM_Counter = 0;
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volatile uint16_t raw[8] = {1200, 1200, 1200, 1200, 1200, 1200, 1200, 1200};
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// Constructors ////////////////////////////////////////////////////////////////
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APM2_RC::APM2_RC()
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{
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_direction_mask = 255; // move to super class
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}
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void
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APM2_RC::init()
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{
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// Init PWM Timer 1
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pinMode(11, OUTPUT); // (PB5 / OC1A)
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pinMode(12, OUTPUT); // OUT2 (PB6 / OC1B)
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pinMode(13, OUTPUT); // OUT3 (PB7 / OC1C)
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// Timer 3
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pinMode(2, OUTPUT); // OUT7 (PE4 / OC3B)
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pinMode(3, OUTPUT); // OUT6 (PE5 / OC3C)
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pinMode(4, OUTPUT); // (PE3 / OC3A)
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// Timer 5
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pinMode(44, OUTPUT); // OUT1 (PL5 / OC5C)
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pinMode(45, OUTPUT); // OUT0 (PL4 / OC5B)
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pinMode(46, OUTPUT); // (PL3 / OC5A)
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// Init PPM input and PWM Timer 4
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pinMode(49, INPUT); // ICP4 pin (PL0) (PPM input)
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pinMode(7, OUTPUT); // OUT5 (PH4 / OC4B)
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pinMode(8, OUTPUT); // OUT4 (PH5 / OC4C)
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//Remember the registers not declared here remains zero by default...
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TCCR1A =((1 << WGM11) | (1 << COM1A1) | (1 << COM1B1) | (1 << COM1C1)); // Please read page 131 of DataSheet, we are changing the registers settings of WGM11, COM1B1, COM1A1 to 1 thats all...
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TCCR1B = (1 << WGM13) | (1 << WGM12) | (1 << CS11); // Prescaler set to 8, that give us a resolution of 0.5us, read page 134 of data sheet
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OCR1A = 3000; // PB5, none
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//OCR1B = 3000; // PB6, OUT2
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//OCR1C = 3000; // PB7 OUT3
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ICR1 = 40000; // 50hz freq...Datasheet says (system_freq / prescaler) / target frequency. So (16000000hz / 8) / 50hz = 40000,
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// Init PWM Timer 3
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TCCR3A =((1 << WGM31) | (1 << COM3A1) | (1 << COM3B1) | (1 << COM3C1));
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TCCR3B = (1 << WGM33) | (1 << WGM32) | (1 << CS31);
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OCR3A = 3000; // PE3, NONE
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//OCR3B = 3000; // PE4, OUT7
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//OCR3C = 3000; // PE5, OUT6
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ICR3 = 40000; // 50hz freq
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// Init PWM Timer 5
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TCCR5A =((1 << WGM51) | (1 << COM5A1) | (1 << COM5B1) | (1 << COM5C1));
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TCCR5B = (1 << WGM53) | (1 << WGM52) | (1 << CS51);
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OCR5A = 3000; // PL3,
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//OCR5B = 3000; // PL4, OUT0
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//OCR5C = 3000; // PL5, OUT1
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ICR5 = 40000; // 50hz freq
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// Init PPM input and PWM Timer 4
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TCCR4A = ((1 << WGM40) | (1 << WGM41) | (1 << COM4C1) | (1 << COM4B1) | (1 << COM4A1));
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TCCR4B = ((1 << WGM43) | (1 << WGM42) | (1 << CS41) | (1 << ICES4));
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OCR4A = 40000; // /50hz freq.
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//OCR4B = 3000; // PH4, OUT5
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//OCR4C = 3000; // PH5, OUT4
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//TCCR4B |=(1<<ICES4); //Changing edge detector (rising edge).
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//TCCR4B &=(~(1<<ICES4)); //Changing edge detector. (falling edge)
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TIMSK4 |= (1 << ICIE4); // Enable Input Capture interrupt. Timer interrupt mask
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// trim out the radio
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for(int c = 0; c < 50; c++){
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delay(20);
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read_pwm();
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}
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trim();
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for(int y = 0; y < 8; y++) {
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set_ch_pwm(y, radio_trim[y]);
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}
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}
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void APM2_RC::read_pwm()
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{
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//Serial.print("ch1 in ");
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//Serial.print(raw[CH1],DEC);
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// reverse any incoming PWM if needed
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for(int y = 0; y < 8; y++) {
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if((_direction_mask & (1 << y)) == 0)
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radio_in[y] = REVERSE - raw[y];
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else
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radio_in[y] = raw[y];
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}
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//Serial.print("\tch1 in ");
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//Serial.print(radio_in[CH1],DEC);
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if(_mix_mode == 1){
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// elevons
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int16_t ailerons = (float)(radio_in[CH1] - radio_trim[CH1]);
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int16_t elevator = (float)(radio_in[CH2] - radio_trim[CH2]) * .7;
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//Serial.print("\tailerons ");
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//Serial.print(ailerons,DEC);
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//Serial.print("\tradio_trim ");
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//Serial.print(radio_trim[CH1],DEC);
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radio_in[CH1] = (elevator - ailerons); // left
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radio_in[CH2] = (elevator + ailerons); // right
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radio_in[CH1] += radio_trim[CH1];
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radio_in[CH2] += radio_trim[CH2];
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//Serial.print("\tch1 in ");
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//Serial.print(radio_in[CH1],DEC);
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//Serial.print("\tch1 trim ");
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//Serial.print(radio_trim[CH1],DEC);
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//Serial.print("radio_in[CH1] ");
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//Serial.print(radio_in[CH1],DEC);
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//Serial.print(" \tradio_in[CH2] ");
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//Serial.println(radio_in[CH2],DEC);
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}
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// output servo
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servo_out[CH3] = (float)(radio_in[CH3] - radio_min[CH3]) / (float)(radio_max[CH3] - radio_min[CH3]) * 100.0;
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servo_out[CH3] = constrain(servo_out[CH3], 0, 100);
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}
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void
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APM2_RC::trim()
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{
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uint8_t temp = _mix_mode;
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_mix_mode = 0;
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read_pwm();
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_mix_mode = temp;
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// Store the trim values
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// ---------------------
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for (int y = 0; y < 8; y++)
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radio_trim[y] = radio_in[y];
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}
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void
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APM2_RC::set_throttle(float percent)
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{
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uint16_t out = (percent * (float)(radio_max[CH3] - radio_min[CH3])) / 100.0;
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out += radio_min[CH3];
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set_ch_pwm(CH3, out);
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}
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void
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APM2_RC::set_ch_pwm(uint8_t ch, uint16_t pwm)
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{
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//pwm = constrain(pwm, MIN_PULSEWIDTH, MAX_PULSEWIDTH);
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switch(ch){
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case 0:
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//Serial.print("\tpwm out ");
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//Serial.print(pwm,DEC);
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if((_direction_mask & 1) == 0 )
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pwm = REVERSE - pwm;
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//Serial.print("\tpwm out ");
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//Serial.println(pwm,DEC);
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OCR5B = pwm << 1;
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break; // ch0
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case 1:
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if((_direction_mask & 2) == 0 )
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pwm = REVERSE - pwm;
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OCR5C = pwm << 1;
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break; // ch0
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case 2:
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if((_direction_mask & 4) == 0 )
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pwm = REVERSE - pwm;
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OCR1B = pwm << 1;
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break; // ch0
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case 3:
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if((_direction_mask & 8) == 0 )
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pwm = REVERSE - pwm;
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OCR1C = pwm << 1;
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break; // ch0
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case 4:
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if((_direction_mask & 16) == 0 )
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pwm = REVERSE - pwm;
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OCR4C = pwm << 1;
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break; // ch0
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case 5:
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if((_direction_mask & 32) == 0 )
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pwm = REVERSE - pwm;
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OCR4B = pwm << 1;
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break; // ch0
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case 6:
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if((_direction_mask & 64) == 0 )
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pwm = REVERSE - pwm;
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OCR3C = pwm << 1;
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break; // ch0
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case 7:
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if((_direction_mask & 128) == 0 )
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pwm = REVERSE - pwm;
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OCR3B = pwm << 1;
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break; // ch0
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case 8:
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OCR5A = pwm << 1;
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break; // ch0
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case 9:
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OCR1A = pwm << 1;
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break; // ch0
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case 10:
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OCR3A = pwm << 1;
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break; // ch0
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}
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}
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/****************************************************
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Input Capture Interrupt ICP4 => PPM signal read
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****************************************************/
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ISR(TIMER4_CAPT_vect)
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{
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uint16_t pulse;
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uint16_t pulse_width;
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pulse = ICR4;
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if (pulse < ICR4_old){ // Take care of the overflow of Timer4 (TOP = 40000)
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pulse_width = (pulse + 40000) - ICR4_old; // Calculating pulse
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}else{
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pulse_width = pulse - ICR4_old; // Calculating pulse
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}
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ICR4_old = pulse;
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if (pulse_width > 8000){ // SYNC pulse
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PPM_Counter = 0;
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} else {
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//PPM_Counter &= 0x07; // For safety only (limit PPM_Counter to 7)
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raw[PPM_Counter++] = pulse_width >> 1; // Saving pulse.
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}
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}
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// InstantPWM implementation
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// This function forces the PWM output (reset PWM) on Out0 and Out1 (Timer5). For quadcopters use
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void APM2_RC::force_out_0_1(void)
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{
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if (TCNT5 > 5000) // We take care that there are not a pulse in the output
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TCNT5 = 39990; // This forces the PWM output to reset in 5us (10 counts of 0.5us). The counter resets at 40000
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}
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// This function forces the PWM output (reset PWM) on Out2 and Out3 (Timer1). For quadcopters use
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void APM2_RC::force_out_2_3(void)
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{
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if (TCNT1 > 5000)
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TCNT1 = 39990;
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}
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// This function forces the PWM output (reset PWM) on Out6 and Out7 (Timer3). For quadcopters use
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void APM2_RC::force_out_6_7(void)
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{
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if (TCNT3 > 5000)
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TCNT3 = 39990;
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}
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#endif
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#ifndef APM2_RC_h
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#define APM2_RC_h
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#include <inttypes.h>
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#include "WProgram.h"
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#include "RC.h"
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class APM2_RC : public RC
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{
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public:
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APM2_RC();
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void read_pwm();
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void set_ch_pwm(uint8_t ch, uint16_t pwm);
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void init();
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void set_throttle(float percent);
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void trim();
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void force_out_0_1(void);
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void force_out_2_3(void);
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void force_out_6_7(void);
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int16_t radio_in[8];
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int16_t radio_min[8];
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int16_t radio_trim[8];
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int16_t radio_max[8];
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float servo_out[8];
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private:
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uint16_t _timer_out;
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};
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#endif
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//volatile uint16_t raw[8] = {1200, 1200, 1200, 1200, 1200, 1200, 1200, 1200};
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@ -0,0 +1,293 @@
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/*
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AP_RC.cpp - Radio library for Arduino
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Code by Jason Short. DIYDrones.com
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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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*/
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#include "AP_RC.h"
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#include <avr/interrupt.h>
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#define REVERSE 3050
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// Variable definition for interrupt
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volatile uint16_t timer1count = 0;
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volatile uint16_t timer2count = 0;
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volatile uint16_t timer3count = 0;
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volatile uint16_t timer4count = 0;
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volatile int16_t timer1diff = 1500 * 2;
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volatile int16_t timer2diff = 1500 * 2;
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volatile int16_t timer3diff = 1100 * 2;
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volatile int16_t timer4diff = 1500 * 2;
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//volatile uint16_t raw[8];
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#define CH1_READ 1
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#define CH2_READ 2
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#define CH3_READ 4
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#define CH4_READ 8
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volatile int8_t _rc_ch_read = 0;
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volatile uint8_t _timer_ovf_a = 0;
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volatile uint8_t _timer_ovf_b = 0;
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volatile uint8_t _timer_ovf = 0;
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AP_RC::AP_RC()
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{
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_direction_mask = 255; // move to super class
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pinMode(11,INPUT); // PB3 - MOSI/OC2 - Throttle in
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pinMode(13,INPUT); // PB5 - SCK - Rudder in
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pinMode(8, OUTPUT); // PB0 - AIN1 - OUTPUT THROTTLE
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pinMode(9, OUTPUT); // PB1 - OC1A - Elevator PWM out
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pinMode(10,OUTPUT); // PB2 - OC1B - Aileron PWM out
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// set Analog out 4 to output
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DDRC |= B00010000;
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}
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void
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AP_RC::init()
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{
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// enable pin change interrupt 2 - PCINT23..16
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PCICR = _BV(PCIE2);
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// enable pin change interrupt 0 - PCINT7..0
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PCICR |= _BV(PCIE0);
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// enable in change interrupt on PB5 (digital pin 13)
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PCMSK0 = _BV(PCINT3) | _BV(PCINT5);
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// enable pin change interrupt on PD2,PD3 (digital pin 2,3)
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PCMSK2 = _BV(PCINT18) | _BV(PCINT19);
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// Timer 1
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TCCR1A = ((1 << WGM11) | (1 << COM1B1) | (1 << COM1A1));
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TCCR1B = (1 << WGM13) | (1 << WGM12) | (1 << CS11);
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// Loop value
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ICR1 = 40000;
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// Throttle;
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// Setting up the Timer 2 - 8 bit timer
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TCCR2A = 0x0; // Normal Mode
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TCCR2B = _BV(CS21) |_BV(CS20); //prescaler 32, at 16mhz (32/16) = 2, the counter will increment 1 every 2us
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// trim out the radio
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for(int c = 0; c < 50; c++){
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delay(20);
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read_pwm();
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}
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trim();
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for(int y = 0; y < 4; y++) {
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set_ch_pwm(y, radio_trim[y]);
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}
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// enable throttle and Ch4 output
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TIMSK1 |= _BV(ICIE1); // Timer / Counter1, Input Capture Interrupt Enable // PB0 - output throttle
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TIMSK2 = _BV(TOIE1) | _BV(OCIE2A) | _BV(OCIE2B); // Timer / Counter2 Compare Match A
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}
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void
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AP_RC::read_pwm()
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{
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if((_direction_mask & 1) == 0 )
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timer1diff = REVERSE - timer1diff;
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if((_direction_mask & 2) == 0 )
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timer2diff = REVERSE - timer2diff;
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if((_direction_mask & 4) == 0 )
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timer3diff = REVERSE - timer3diff;
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if((_direction_mask & 8) == 0 )
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timer4diff = REVERSE - timer4diff;
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if(_mix_mode == 1){
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// elevons
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int16_t ailerons = (timer1diff - radio_trim[CH1]) * .3;
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int16_t elevator = (timer2diff - radio_trim[CH2]) * .7;
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radio_in[CH1] = (elevator - ailerons); // left
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||||
radio_in[CH2] = (elevator + ailerons); // right
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||||
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radio_in[CH1] += radio_trim[CH1];
|
||||
radio_in[CH2] += radio_trim[CH2];
|
||||
|
||||
//Serial.print("radio_in[CH1] ");
|
||||
//Serial.print(radio_in[CH1],DEC);
|
||||
//Serial.print(" \tradio_in[CH2] ");
|
||||
//Serial.println(radio_in[CH2],DEC);
|
||||
|
||||
}else{
|
||||
// normal
|
||||
radio_in[CH1] = timer1diff;
|
||||
radio_in[CH2] = timer2diff;
|
||||
}
|
||||
|
||||
radio_in[CH3] = (float)radio_in[CH3] * .9 + timer3diff * .1;
|
||||
radio_in[CH4] = timer4diff;
|
||||
|
||||
check_throttle_failsafe(radio_in[CH3]);
|
||||
|
||||
// output servo
|
||||
servo_out[CH3] = (float)(radio_in[CH3] - radio_min[CH3]) / (float)(radio_max[CH3] - radio_min[CH3]) * 100.0;
|
||||
servo_out[CH3] = constrain(servo_out[CH3], 0, 100);
|
||||
}
|
||||
|
||||
void
|
||||
AP_RC::trim()
|
||||
{
|
||||
uint8_t temp = _mix_mode;
|
||||
_mix_mode = 0;
|
||||
read_pwm();
|
||||
_mix_mode = temp;
|
||||
|
||||
radio_trim[CH1] = radio_in[CH1];
|
||||
radio_trim[CH2] = radio_in[CH2];
|
||||
radio_trim[CH3] = radio_in[CH3];
|
||||
radio_trim[CH4] = radio_in[CH4];
|
||||
|
||||
//Serial.print("trim ");
|
||||
//Serial.println(radio_trim[CH1], DEC);
|
||||
}
|
||||
|
||||
void
|
||||
AP_RC::set_throttle(float percent)
|
||||
{
|
||||
uint16_t out = (percent * (float)(radio_max[CH3] - radio_min[CH3])) / 100.0;
|
||||
out += radio_min[CH3];
|
||||
set_ch_pwm(CH3, out);
|
||||
}
|
||||
|
||||
void
|
||||
AP_RC::set_ch_pwm(uint8_t ch, uint16_t pwm)
|
||||
{
|
||||
switch(ch){
|
||||
case CH1:
|
||||
if((_direction_mask & 1) == 0 )
|
||||
pwm = REVERSE - pwm;
|
||||
pwm <<= 1;
|
||||
OCR1A = pwm;
|
||||
break;
|
||||
|
||||
case CH2:
|
||||
if((_direction_mask & 2) == 0 )
|
||||
pwm = REVERSE - pwm;
|
||||
pwm <<= 1;
|
||||
OCR1B = pwm;
|
||||
break;
|
||||
|
||||
case CH3:
|
||||
if((_direction_mask & 4) == 0 )
|
||||
pwm = REVERSE - pwm;
|
||||
// Jason's fancy 2µs hack
|
||||
_timer_out = pwm % 512;
|
||||
_timer_ovf_a = pwm / 512;
|
||||
_timer_out >>= 1;
|
||||
OCR2A = _timer_out;
|
||||
break;
|
||||
|
||||
case CH4:
|
||||
if((_direction_mask & 8) == 0 )
|
||||
pwm = REVERSE - pwm;
|
||||
_timer_out = pwm % 512;
|
||||
_timer_ovf_b = pwm / 512;
|
||||
_timer_out >>= 1;
|
||||
OCR2B = _timer_out;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
// radio PWM input timers
|
||||
ISR(PCINT2_vect) {
|
||||
int cnt = TCNT1;
|
||||
if(PIND & B00000100){ // ch 1 (pin 2) is high
|
||||
if ((_rc_ch_read & CH1_READ) != CH1_READ){
|
||||
_rc_ch_read |= CH1_READ;
|
||||
timer1count = cnt;
|
||||
}
|
||||
}else if ((_rc_ch_read & CH1_READ) == CH1_READ){ // ch 1 (pin 2) is Low, and we were reading
|
||||
_rc_ch_read &= B11111110;
|
||||
if (cnt < timer1count) // Timer1 reset during the read of this pulse
|
||||
timer1diff = (cnt + 40000 - timer1count) >> 1; // Timer1 TOP = 40000
|
||||
else
|
||||
timer1diff = (cnt - timer1count) >> 1;
|
||||
}
|
||||
|
||||
if(PIND & B00001000){ // ch 2 (pin 3) is high
|
||||
if ((_rc_ch_read & CH2_READ) != CH2_READ){
|
||||
_rc_ch_read |= CH2_READ;
|
||||
timer2count = cnt;
|
||||
}
|
||||
}else if ((_rc_ch_read & CH2_READ) == CH2_READ){ // ch 1 (pin 2) is Low
|
||||
_rc_ch_read &= B11111101;
|
||||
if (cnt < timer2count) // Timer1 reset during the read of this pulse
|
||||
timer2diff = (cnt + 40000 - timer2count) >> 1; // Timer1 TOP = 40000
|
||||
else
|
||||
timer2diff = (cnt - timer2count) >> 1;
|
||||
}
|
||||
}
|
||||
|
||||
ISR(PCINT0_vect)
|
||||
{
|
||||
int cnt = TCNT1;
|
||||
if(PINB & 8){ // pin 11
|
||||
if ((_rc_ch_read & CH3_READ) != CH3_READ){
|
||||
_rc_ch_read |= CH3_READ;
|
||||
timer3count = cnt;
|
||||
}
|
||||
}else if ((_rc_ch_read & CH3_READ) == CH3_READ){ // ch 1 (pin 2) is Low
|
||||
_rc_ch_read &= B11111011;
|
||||
if (cnt < timer3count) // Timer1 reset during the read of this pulse
|
||||
timer3diff = (cnt + 40000 - timer3count) >> 1; // Timer1 TOP = 40000
|
||||
else
|
||||
timer3diff = (cnt - timer3count) >> 1;
|
||||
}
|
||||
|
||||
if(PINB & 32){ // pin 13
|
||||
if ((_rc_ch_read & CH4_READ) != CH4_READ){
|
||||
_rc_ch_read |= CH4_READ;
|
||||
timer4count = cnt;
|
||||
}
|
||||
}else if ((_rc_ch_read & CH4_READ) == CH4_READ){ // ch 1 (pin 2) is Low
|
||||
_rc_ch_read &= B11110111;
|
||||
if (cnt < timer4count) // Timer1 reset during the read of this pulse
|
||||
timer4diff = (cnt + 40000 - timer4count) >> 1; // Timer1 TOP = 40000
|
||||
else
|
||||
timer4diff = (cnt - timer4count) >> 1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
// Throttle Timer Interrupt
|
||||
// ------------------------
|
||||
ISR(TIMER1_CAPT_vect) // Timer/Counter1 Capture Event
|
||||
{
|
||||
//This is a timer 1 interrupts, executed every 20us
|
||||
PORTB |= B00000001; //Putting the pin high!
|
||||
PORTC |= B00010000; //Putting the pin high!
|
||||
TCNT2 = 0; //restarting the counter of timer 2
|
||||
_timer_ovf = 0;
|
||||
}
|
||||
|
||||
ISR(TIMER2_OVF_vect)
|
||||
{
|
||||
_timer_ovf++;
|
||||
}
|
||||
|
||||
ISR(TIMER2_COMPA_vect) // Timer/Counter2 Compare Match A
|
||||
{
|
||||
if(_timer_ovf == _timer_ovf_a){
|
||||
PORTB &= B11111110; //Putting the pin low
|
||||
}
|
||||
}
|
||||
|
||||
ISR(TIMER2_COMPB_vect) // Timer/Counter2 Compare Match B Rudder Servo
|
||||
{
|
||||
if(_timer_ovf == _timer_ovf_b){
|
||||
PORTC &= B11101111; //Putting the pin low!
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
#ifndef AP_RC_h
|
||||
#define AP_RC_h
|
||||
|
||||
#include <inttypes.h>
|
||||
#include "WProgram.h"
|
||||
#include "RC.h"
|
||||
|
||||
class AP_RC : public RC
|
||||
{
|
||||
public:
|
||||
AP_RC();
|
||||
void read_pwm();
|
||||
void set_ch_pwm(uint8_t ch, uint16_t pwm);
|
||||
void init();
|
||||
void set_throttle(float percent);
|
||||
void trim();
|
||||
|
||||
int16_t radio_in[4];
|
||||
int16_t radio_min[4];
|
||||
int16_t radio_trim[4];
|
||||
int16_t radio_max[4];
|
||||
|
||||
float servo_out[4];
|
||||
|
||||
private:
|
||||
uint16_t _timer_out;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,84 @@
|
|||
/*
|
||||
AP_RC.cpp - Radio library for Arduino
|
||||
Code by Jason Short. DIYDrones.com
|
||||
|
||||
This library is free software; you can redistribute it and / or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
*/
|
||||
|
||||
|
||||
|
||||
#include "RC.h"
|
||||
|
||||
/*
|
||||
RC::RC()// :
|
||||
_direction_mask(255)
|
||||
{
|
||||
}
|
||||
*/
|
||||
|
||||
// direction mask: 0 = normal, 1 = reversed servos
|
||||
void
|
||||
RC::set_channel_direction(uint8_t ch, int8_t dir)
|
||||
{
|
||||
uint8_t bitflip = 1 << ch;
|
||||
|
||||
if(dir == 1){
|
||||
_direction_mask |= bitflip;
|
||||
}else{
|
||||
_direction_mask &= ~bitflip;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
RC::set_failsafe(uint16_t v)
|
||||
{
|
||||
_fs_value = v;
|
||||
}
|
||||
|
||||
void
|
||||
RC::set_mix_mode(uint8_t m)
|
||||
{
|
||||
_mix_mode = m;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
RC::check_throttle_failsafe(uint16_t throttle)
|
||||
{
|
||||
//check for failsafe and debounce funky reads
|
||||
// ------------------------------------------
|
||||
if (throttle < _fs_value){
|
||||
// we detect a failsafe from radio
|
||||
// throttle has dropped below the mark
|
||||
_fs_counter++;
|
||||
if (_fs_counter == 9){
|
||||
|
||||
}else if(_fs_counter == 10) {
|
||||
failsafe = 1;
|
||||
}else if (_fs_counter > 10){
|
||||
_fs_counter = 11;
|
||||
}
|
||||
|
||||
}else if(_fs_counter > 0){
|
||||
// we are no longer in failsafe condition
|
||||
// but we need to recover quickly
|
||||
_fs_counter--;
|
||||
if (_fs_counter > 3){
|
||||
_fs_counter = 3;
|
||||
}
|
||||
if (_fs_counter == 1){
|
||||
|
||||
}else if(_fs_counter == 0) {
|
||||
failsafe = 0;
|
||||
}else if (_fs_counter <0){
|
||||
_fs_counter = -1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,48 @@
|
|||
#ifndef RC_h
|
||||
#define RC_h
|
||||
|
||||
#include <inttypes.h>
|
||||
#include "WProgram.h"
|
||||
|
||||
#define CH1 0
|
||||
#define CH2 1
|
||||
#define CH3 2
|
||||
#define CH4 3
|
||||
#define CH5 4
|
||||
#define CH6 5
|
||||
#define CH7 6
|
||||
#define CH8 7
|
||||
|
||||
#define MIN_PULSEWIDTH 900
|
||||
#define MAX_PULSEWIDTH 2100
|
||||
|
||||
#define ELEVONS 1
|
||||
|
||||
class RC
|
||||
{
|
||||
public:
|
||||
// RC();
|
||||
virtual void read_pwm();
|
||||
virtual void set_ch_pwm(uint8_t ch, uint16_t pwm);
|
||||
virtual void init();
|
||||
virtual void trim();
|
||||
virtual void set_channel_direction(uint8_t ch, int8_t dir);
|
||||
virtual void set_throttle(float percent);
|
||||
|
||||
|
||||
void set_failsafe(uint16_t fs);
|
||||
void set_mix_mode(uint8_t mode);
|
||||
|
||||
|
||||
uint8_t failsafe;
|
||||
uint8_t reverse_throttle;
|
||||
|
||||
protected:
|
||||
void check_throttle_failsafe(uint16_t throttle);
|
||||
uint8_t _fs_counter;
|
||||
uint8_t _mix_mode; // 0 = normal, 1 = elevons
|
||||
uint8_t _direction_mask;
|
||||
uint16_t _fs_value; // PWM value to trigger failsafe flag
|
||||
};
|
||||
|
||||
#endif
|
|
@ -0,0 +1,59 @@
|
|||
/*
|
||||
Example of APM2_RC library.
|
||||
Code by Jordi MuÒoz and Jose Julio. DIYDrones.com
|
||||
|
||||
Print Input values and send Output to the servos
|
||||
(Works with last PPM_encoder firmware)
|
||||
*/
|
||||
|
||||
#include <APM2_RC.h> // ArduPilot Mega RC Library
|
||||
APM2_RC rc;
|
||||
|
||||
#define CH_ROLL 0
|
||||
#define CH_PITCH 1
|
||||
#define CH_THROTTLE 2
|
||||
#define CH_RUDDER 3
|
||||
|
||||
void setup()
|
||||
{
|
||||
Serial.begin(38400);
|
||||
Serial.println("ArduPilot Mega RC library test");
|
||||
|
||||
//rc.set_channel_direction(CH_ROLL, -1);
|
||||
//rc.set_channel_direction(CH_PITCH, -1);
|
||||
//rc.set_channel_direction(CH_THROTTLE, -1);
|
||||
//rc.set_channel_direction(CH_RUDDER, -1);
|
||||
rc.set_mix_mode(1); // 1 = elevons, 0 = normal
|
||||
rc.init();
|
||||
delay(1000);
|
||||
}
|
||||
|
||||
void loop()
|
||||
{
|
||||
delay(20);
|
||||
rc.read_pwm();
|
||||
for(int y = 0; y < 8; y++) {
|
||||
rc.set_ch_pwm(y, rc.radio_in[y]); // send to Servos
|
||||
}
|
||||
//print_pwm();
|
||||
}
|
||||
|
||||
void print_pwm()
|
||||
{
|
||||
Serial.print("ch1 ");
|
||||
Serial.print(rc.radio_in[CH_ROLL], DEC);
|
||||
Serial.print("\tch2: ");
|
||||
Serial.print(rc.radio_in[CH_PITCH], DEC);
|
||||
Serial.print("\tch3 :");
|
||||
Serial.print(rc.radio_in[CH_THROTTLE], DEC);
|
||||
Serial.print("\tch4 :");
|
||||
Serial.print(rc.radio_in[CH_RUDDER], DEC);
|
||||
Serial.print("\tch5 ");
|
||||
Serial.print(rc.radio_in[4], DEC);
|
||||
Serial.print("\tch6: ");
|
||||
Serial.print(rc.radio_in[5], DEC);
|
||||
Serial.print("\tch7 :");
|
||||
Serial.print(rc.radio_in[6], DEC);
|
||||
Serial.print("\tch8 :");
|
||||
Serial.println(rc.radio_in[7], DEC);
|
||||
}
|
|
@ -0,0 +1,59 @@
|
|||
/*
|
||||
Example of APM2_RC library.
|
||||
Code by Jordi MuÒoz and Jose Julio. DIYDrones.com
|
||||
|
||||
Print Input values and send Output to the servos
|
||||
(Works with last PPM_encoder firmware)
|
||||
*/
|
||||
|
||||
#include <APM2_RC.h> // ArduPilot Mega RC Library
|
||||
APM2_RC rc;
|
||||
|
||||
#define CH_ROLL 0
|
||||
#define CH_PITCH 1
|
||||
#define CH_THROTTLE 2
|
||||
#define CH_RUDDER 3
|
||||
|
||||
void setup()
|
||||
{
|
||||
Serial.begin(38400);
|
||||
Serial.println("ArduPilot Mega RC library test");
|
||||
|
||||
//rc.set_channel_direction(CH_ROLL, -1);
|
||||
//rc.set_channel_direction(CH_PITCH, -1);
|
||||
//rc.set_channel_direction(CH_THROTTLE, -1);
|
||||
//rc.set_channel_direction(CH_RUDDER, -1);
|
||||
rc.init();
|
||||
delay(1000);
|
||||
}
|
||||
|
||||
void loop()
|
||||
{
|
||||
delay(20);
|
||||
rc.read_pwm();
|
||||
|
||||
for(int y = 0; y < 8; y++) {
|
||||
rc.set_ch_pwm(y, rc.radio_in[y]); // send to Servos
|
||||
}
|
||||
//print_pwm();
|
||||
}
|
||||
|
||||
void print_pwm()
|
||||
{
|
||||
Serial.print("ch1 ");
|
||||
Serial.print(rc.radio_in[CH_ROLL], DEC);
|
||||
Serial.print("\tch2: ");
|
||||
Serial.print(rc.radio_in[CH_PITCH], DEC);
|
||||
Serial.print("\tch3 :");
|
||||
Serial.print(rc.radio_in[CH_THROTTLE], DEC);
|
||||
Serial.print("\tch4 :");
|
||||
Serial.print(rc.radio_in[CH_RUDDER], DEC);
|
||||
Serial.print("\tch5 ");
|
||||
Serial.print(rc.radio_in[4], DEC);
|
||||
Serial.print("\tch6: ");
|
||||
Serial.print(rc.radio_in[5], DEC);
|
||||
Serial.print("\tch7 :");
|
||||
Serial.print(rc.radio_in[6], DEC);
|
||||
Serial.print("\tch8 :");
|
||||
Serial.println(rc.radio_in[7], DEC);
|
||||
}
|
|
@ -0,0 +1,48 @@
|
|||
/*
|
||||
Example of AP_RC library.
|
||||
Code by Jordi MuÒoz and Jose Julio. DIYDrones.com
|
||||
|
||||
Print Input values and send Output to the servos
|
||||
(Works with last PPM_encoder firmware)
|
||||
*/
|
||||
|
||||
#include <AP_RC.h> // ArduPilot Mega RC Library
|
||||
AP_RC rc;
|
||||
|
||||
#define CH_ROLL 0
|
||||
#define CH_PITCH 1
|
||||
#define CH_THROTTLE 2
|
||||
#define CH_RUDDER 3
|
||||
|
||||
void setup()
|
||||
{
|
||||
Serial.begin(38400);
|
||||
Serial.println("ArduPilot RC Elevon library test");
|
||||
|
||||
rc.set_mix_mode(1); // 1 = elevons, 0 = normal
|
||||
rc.init();
|
||||
|
||||
delay(1000);
|
||||
}
|
||||
void loop()
|
||||
{
|
||||
delay(60);
|
||||
rc.read_pwm();
|
||||
for(int y = 0; y < 4; y++) {
|
||||
rc.set_ch_pwm(y, rc.radio_in[y]); // send to Servos
|
||||
}
|
||||
print_pwm();
|
||||
}
|
||||
|
||||
|
||||
void print_pwm()
|
||||
{
|
||||
Serial.print("ch1 ");
|
||||
Serial.print(rc.radio_in[CH_ROLL], DEC);
|
||||
Serial.print("\tch2: ");
|
||||
Serial.print(rc.radio_in[CH_PITCH], DEC);
|
||||
Serial.print("\tch3 :");
|
||||
Serial.print(rc.radio_in[CH_THROTTLE], DEC);
|
||||
Serial.print("\tch4 :");
|
||||
Serial.println(rc.radio_in[CH_RUDDER], DEC);
|
||||
}
|
|
@ -0,0 +1,50 @@
|
|||
/*
|
||||
Example of AP_RC library.
|
||||
Code by Jordi MuÒoz and Jose Julio. DIYDrones.com
|
||||
|
||||
Print Input values and send Output to the servos
|
||||
(Works with last PPM_encoder firmware)
|
||||
*/
|
||||
|
||||
#include <AP_RC.h> // ArduPilot Mega RC Library
|
||||
AP_RC rc;
|
||||
|
||||
#define CH_ROLL 0
|
||||
#define CH_PITCH 1
|
||||
#define CH_THROTTLE 2
|
||||
#define CH_RUDDER 3
|
||||
|
||||
void setup()
|
||||
{
|
||||
Serial.begin(38400);
|
||||
Serial.println("ArduPilot RC library test");
|
||||
|
||||
//rc.set_channel_direction(CH_ROLL, -1);
|
||||
//rc.set_channel_direction(CH_PITCH, -1);
|
||||
//rc.set_channel_direction(CH_THROTTLE, -1);
|
||||
//rc.set_channel_direction(CH_RUDDER, -1);
|
||||
rc.init();
|
||||
delay(1000);
|
||||
}
|
||||
|
||||
void loop()
|
||||
{
|
||||
delay(20);
|
||||
rc.read_pwm();
|
||||
for(int y = 0; y < 4; y++) {
|
||||
rc.set_ch_pwm(y, rc.radio_in[y]); // send to Servos
|
||||
}
|
||||
print_pwm();
|
||||
}
|
||||
|
||||
void print_pwm()
|
||||
{
|
||||
Serial.print("ch1 ");
|
||||
Serial.print(rc.radio_in[CH_ROLL], DEC);
|
||||
Serial.print("\tch2: ");
|
||||
Serial.print(rc.radio_in[CH_PITCH], DEC);
|
||||
Serial.print("\tch3 :");
|
||||
Serial.print(rc.radio_in[CH_THROTTLE], DEC);
|
||||
Serial.print("\tch4 :");
|
||||
Serial.println(rc.radio_in[CH_RUDDER], DEC);
|
||||
}
|
|
@ -0,0 +1,4 @@
|
|||
AP_RC KEYWORD1
|
||||
init KEYWORD2
|
||||
set_ch_pwm KEYWORD2
|
||||
read_pwm KEYWORD2
|
Loading…
Reference in New Issue