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'Tinker Board S : pi4j'에 해당되는 글 1건

  1. 2018.09.08 Tinker Board S : pi4j

Tinker Board S : pi4j

OS/Tinker Board S 2018.09.08 13:04 Posted by 파란크리스마스

출처

Tinker Board S : pi4j

Tinker Board의 pwm 제어 하는 예제는 python을 제외하고는 c언어나 java 예제를 찾을 수 없어서 wiringPi 라이브러리를 직접 컴파일 해보았지만 모터의 떨림도 심하고, 발열도 심해서 아직은 불안한것 같습니다. python의 pwm관련 소스를 wiringPi에 추가하고 다시 pi4j 라이브러리에 적용했습니다. pi4j라이브러리와 pi4j를 이용한 Servo.java 예제도 첨부했습니다.동영상을 보시면 알겠지만, 떨림도, 발열도 발생하지 않았습니다.

pi4j-core-1.2-SNAPSHOT.jar

TinkerBoardPin.java

package com.pi4j.io.gpio;

import java.util.EnumSet;

public class TinkerBoardPin extends PinProvider {

    // GPIO0_C1
    public static final Pin GPIO0_C1 = createDigitalPin(7, "GPIO0_C1");          // addGpioPinInfo(16+1, "GPIO0_C1", 7, PinInfo.DIGITAL_IN_OUT);

    // GPIO5B (GP5B0-GP5B7)
    public static final Pin GPIO5_B0 = createDigitalPin(16, "GPIO5_B0");         // addGpioPinInfo(160, "GPIO5_B0", 10, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO5_B1 = createDigitalPin(15, "GPIO5_B1");         // addGpioPinInfo(160+1, "GPIO5_B1", 8, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO5_B2 = createDigitalPin(4, "GPIO5_B2");          // addGpioPinInfo(160+2, "GPIO5_B2", 16, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO5_B3 = createDigitalPin(5, "GPIO5_B3");          // addGpioPinInfo(160+3, "GPIO5_B3", 18, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO5_B4 = createDigitalPin(0, "GPIO5_B4");          // addGpioPinInfo(160+4, "GPIO5_B4", 11, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO5_B5 = createDigitalPin(21, "GPIO5_B5");         // addGpioPinInfo(160+5, "GPIO5_B5", 29, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO5_B6 = createDigitalPin(2, "GPIO5_B6");          // addGpioPinInfo(160+6, "GPIO5_B6", 13, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO5_B7 = createDigitalPin(3, "GPIO5_B7");          // addGpioPinInfo(160+7, "GPIO5_B7", 15, PinInfo.DIGITAL_IN_OUT);

    // GPIO5C (GP5C0-GP5C3)                                                       // GPIO5C (GP5C0-GP5C3)
    public static final Pin GPIO5_C0 = createDigitalPin(22, "GPIO5_C0");          // addGpioPinInfo(168, "GPIO5_C0", 31, PinInfo.DIGITAL_IN_OUT);
    //public static final Pin GPIO5_C1 = createDigitalPin(168+1, "GPIO5_C1");     // addGpioPinInfo(168+1, "GPIO5_C1", -1, PinInfo.DIGITAL_IN_OUT);
    //public static final Pin GPIO5_C2 = createDigitalPin(168+2, "GPIO5_C2");     // addGpioPinInfo(168+2, "GPIO5_C2", -1, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO5_C3 = createDigitalPin(6, "GPIO5_C3");           // addGpioPinInfo(168+3, "GPIO5_C3", 22, PinInfo.DIGITAL_IN_OUT);

    // GPIO6A (GP6A0-GP6A1)
    public static final Pin GPIO6_A0 = createDigitalPin(1, "GPIO6_A0");           // addGpioPinInfo(184, "GPIO6_A0", 12, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO6_A1 = createDigitalPin(24, "GPIO6_A1");          // addGpioPinInfo(184+1, "GPIO6_A1", 35, PinInfo.DIGITAL_IN_OUT);
    // GPIO6A (GP6A3-GP6A4)
    public static final Pin GPIO6_A3 = createDigitalPin(28, "GPIO6_A3");          // addGpioPinInfo(184+3, "GPIO6_A3", 38, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO6_A4 = createDigitalPin(29, "GPIO6_A4");          // addGpioPinInfo(184+4, "GPIO6_A4", 40, PinInfo.DIGITAL_IN_OUT);

    // GPIO7A (GP7A7)
    public static final Pin GPIO7_A7 = createDigitalPin(27, "GPIO7_A7");          // addGpioPinInfo(216+7, "GPIO7_A7", 36, PinInfo.DIGITAL_IN_OUT);

    // GPIO7B (GP7B0-GP7B2)
    public static final Pin GPIO7_B0 = createDigitalPin(25, "GPIO7_B0");          // addGpioPinInfo(224, "GPIO7_B0", 37, PinInfo.DIGITAL_IN_OUT);
    //public static final Pin GPIO7_B1 = createDigitalPin(224+1, "GPIO7_B1");     // addGpioPinInfo(224+1, "GPIO7_B1", -1, PinInfo.DIGITAL_IN_OUT);
    //public static final Pin GPIO7_B2 = createDigitalPin(224+2, "GPIO7_B2");     // addGpioPinInfo(224+2, "GPIO7_B2", -1, PinInfo.DIGITAL_IN_OUT);

    // GPIO7CL (GP7C1-GP7C2)
    public static final Pin GPIO7_C1 = createDigitalPin(30, "GPIO7_C1");          // addGpioPinInfo(232+1, "GPIO7_C1", 27, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO7_C2 = createDigitalPin(31, "GPIO7_C2");          // addGpioPinInfo(232+2, "GPIO7_C2", 28, PinInfo.DIGITAL_IN_OUT);
    // GPIO7CH (GP7C6-GP7C7)
    public static final Pin GPIO7_C6 = createDigitalAndPwmPin(23, "GPIO7_C6");    // addPwmPinInfo(232+6, "GPIO7_C6", 33, 0, PinInfo.DIGITAL_IN_OUT_PWM);
    public static final Pin GPIO7_C7 = createDigitalAndPwmPin(26, "GPIO7_C7");    // addPwmPinInfo(232+7, "GPIO7_C7", 32, 1, PinInfo.DIGITAL_IN_OUT_PWM);

    // GPIO8A (GP8A3-GP8A7)
    public static final Pin GPIO8_A3 = createDigitalPin(11, "GPIO8_A3");          // addGpioPinInfo(248+3, "GPIO8_A3", 26, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO8_A4 = createDigitalPin(8, "GPIO8_A4");           // addGpioPinInfo(248+4, "GPIO8_A4", 3, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO8_A5 = createDigitalPin(9, "GPIO8_A5");           // addGpioPinInfo(248+5, "GPIO8_A5", 5, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO8_A6 = createDigitalPin(14, "GPIO8_A6");          // addGpioPinInfo(248+6, "GPIO8_A6", 23, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO8_A7 = createDigitalPin(10, "GPIO8_A7");          // addGpioPinInfo(248+7, "GPIO8_A7", 24, PinInfo.DIGITAL_IN_OUT);

    // GPIO8B (GP8B0-GP8B1)
    public static final Pin GPIO8_B0 = createDigitalPin(13, "GPIO8_B0");          // addGpioPinInfo(256, "GPIO8_B0", 21, PinInfo.DIGITAL_IN_OUT);
    public static final Pin GPIO8_B1 = createDigitalPin(12, "GPIO8_B1");          // addGpioPinInfo(256+1, "GPIO8_B1", 19, PinInfo.DIGITAL_IN_OUT);

    protected static Pin createDigitalPin(int address, String name) {
        return createDigitalPin(TinkerBoardGpioProvider.NAME, address, name);
    }

    protected static Pin createDigitalPinNoEdge(int address, String name, EnumSet<PinPullResistance> resistance) {
        return createDigitalPin(TinkerBoardGpioProvider.NAME, address, name, resistance, EnumSet.noneOf(PinEdge.class));
    }

    protected static Pin createDigitalPinNoEdge(int address, String name) {
        return createDigitalPin(TinkerBoardGpioProvider.NAME, address, name, EnumSet.noneOf(PinEdge.class));
    }

    protected static Pin createDigitalAndPwmPin(int address, String name) {
        return createDigitalAndPwmPin(TinkerBoardGpioProvider.NAME, address, name);
    }

    protected static Pin createDigitalAndPwmPinNoEdge(int address, String name) {
        return createDigitalAndPwmPin(TinkerBoardGpioProvider.NAME, address, name, EnumSet.noneOf(PinEdge.class));
    }

    // *override* static method from subclass
    // (overriding a static method is not supported in Java
    //  so this method definition will hide the subclass static method)
    public static Pin getPinByName(String name) {
        return PinProvider.getPinByName(name);
    }

    // *override* static method from subclass
    // (overriding a static method is not supported in Java
    //  so this method definition will hide the subclass static method)
    public static Pin getPinByAddress(int address) {
        return PinProvider.getPinByAddress(address);
    }

    // *override* static method from subclass
    // (overriding a static method is not supported in Java
    //  so this method definition will hide the subclass static method)
    public static Pin[] allPins() { return PinProvider.allPins(); }

    // *override* static method from subclass
    // (overriding a static method is not supported in Java
    //  so this method definition will hide the subclass static method)
    public static Pin[] allPins(PinMode ... mode) { return PinProvider.allPins(mode); }
}

servo.c

#include <stdio.h>
#include "RKIO.h"
#include "wiringTB.h"
#include "constants.h"
#include "common.h"
#include "c_gpio.h"
#include "py_gpio.h"
#include "py_pwm.h"

int main ()
{
	printf("servo.main\n");
	
	int myservo = 239;
	
	//GPIO.setmode(GPIO.ASUS)
	py_setmode(ASUS);
	
	//GPIO.setup(myservo,GPIO.OUT)
	py_setup_channel(myservo, OUTPUT);
	
	//pwm = GPIO.PWM(myservo,50) # 50hz yani 20mslik periyod
	PWMObject pwm;
	PWM_init(&pwm, myservo, 50);
	printf("pwm.gpio = %d\n", pwm.gpio);
	
	//pwm.start(2.5) # 0 derece
	PWM_start(&pwm, 2.5);
	
	//pwm.ChangeDutyCycle(2.5) #0 derece
	PWM_ChangeDutyCycle(&pwm, 2.5);
	sleep( 1 );
  
	//pwm.ChangeDutyCycle(7.5) #90 derece
	PWM_ChangeDutyCycle(&pwm, 7.5);
	sleep( 1 );
	
	//pwm.ChangeDutyCycle(12.5) #180 derece
	PWM_ChangeDutyCycle(&pwm, 12.5);
	sleep( 1 );
	
	//pwm.ChangeDutyCycle(7.5)
	PWM_ChangeDutyCycle(&pwm, 7.5);
	sleep( 1 );
	
	//pwm.ChangeDutyCycle(2.5) #0 derece
	PWM_ChangeDutyCycle(&pwm, 2.5);
	sleep( 1 );
  
 	//pwm.ChangeDutyCycle(7.5)
	PWM_ChangeDutyCycle(&pwm, 7.5);
	sleep( 1 );
	
	PWM_dealloc(pwm);
}

컴파일

$ gcc -lm -lpwmBx servo.c -o servo

Servo.java

import com.pi4j.io.gpio.GpioFactory;
import com.pi4j.io.gpio.TinkerBoardGpioProvider;
import com.pi4j.wiringpi.ASUSGpio;
import com.pi4j.wiringpi.PWMObject;

public class Servo {

	public static void main(String[] args) throws Exception {

		GpioFactory.setDefaultProvider(new TinkerBoardGpioProvider());

		int myservo = 239;

		//GPIO.setmode(GPIO.ASUS)
		ASUSGpio.pySetmode(ASUSGpio.ASUS);

		//GPIO.setup(myservo,GPIO.OUT)
		ASUSGpio.pySetupChannel(myservo, ASUSGpio.OUTPUT);

		//pwm = GPIO.PWM(myservo,50) # 50hz yani 20mslik periyod
		PWMObject pwm = ASUSGpio.pwmInit(myservo, 50);
		System.out.println("pwm.gpio = "+ pwm.gpio + "/" + pwm.freq + "/" + pwm.dutycycle);

		//pwm.start(2.5) # 0 derece
		ASUSGpio.pwmStart(pwm, 2.5f);
		Thread.sleep( 1000 );

		//pwm.ChangeDutyCycle(2.5) #0 derece
		ASUSGpio.pwmChangeDutyCycle(pwm, 2.5f);
		Thread.sleep( 1000 );

		//pwm.ChangeDutyCycle(7.5) #90 derece
		ASUSGpio.pwmChangeDutyCycle(pwm, 7.5f);
		Thread.sleep( 1000 );

		//pwm.ChangeDutyCycle(12.5) #180 derece
		ASUSGpio.pwmChangeDutyCycle(pwm, 12.5f);
		Thread.sleep( 1000 );

		//pwm.ChangeDutyCycle(7.5)
		ASUSGpio.pwmChangeDutyCycle(pwm, 7.5f);
		Thread.sleep( 1000 );

		//pwm.ChangeDutyCycle(2.5) #0 derece
		ASUSGpio.pwmChangeDutyCycle(pwm, 2.5f);
		Thread.sleep( 1000 );

		//pwm.ChangeDutyCycle(7.5)
		ASUSGpio.pwmChangeDutyCycle(pwm, 7.5f);
		Thread.sleep( 1000 );
		
		ASUSGpio.pwmDealloc(pwm);
	}
}

컴파일

$ javac -cp .:pi4j-core-1.2-SNAPSHOT.jar Servo.java

실행

$ java -cp .:pi4j-core-1.2-SNAPSHOT.jar Servo

실행 동영상



 

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