Pi4J / pi4j-v1

DEPRECATED Java I/O library for Raspberry Pi (GPIO, I2C, SPI, UART)
http://www.pi4j.com
Apache License 2.0
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a bug of v1.4 #535

Open lixiaoxin1989 opened 3 years ago

lixiaoxin1989 commented 3 years ago

I use CM4, ubuntu server 20.10 64 bit, wiringpi 2.60, pi4j 1.4.

Run the following code will cause the eth0 lost its ipv4 address, so the eth0 will not work untill reboot.

import com.pi4j.io.gpio.GpioController;
import com.pi4j.io.gpio.GpioFactory;
import com.pi4j.io.gpio.GpioPinDigitalOutput;
import com.pi4j.io.gpio.PinState;
import com.pi4j.io.gpio.RaspiPin;

GpioController gpio = GpioFactory.getInstance();
GpioPinDigitalOutput pin1 = gpio.provisionDigitalOutputPin(RaspiPin.GPIO_17, "", PinState.LOW);
pin1.high();

But it's OK if run as following:

import com.pi4j.wiringpi.Gpio;

Gpio.wiringPiSetup();
Gpio.pinMode(17, Gpio.OUTPUT);
Gpio.digitalWrite(17, 1);