Comments (5)
jSSC tested on FTDI and Prolific chips, and works correctly on it.
I wrote an example with your method, and it works fine:
public class Main {
private static SerialPort serialPort;
public static void main(String[] args) {
serialPort = new SerialPort("COM15");
try {
serialPort.openPort();
serialPort.setParams(9600, 8, 1, 0);
while(true){
System.out.println(getByte());
}
}
catch (SerialPortException ex) {
ex.printStackTrace();
}
}
protected static byte getByte() throws jssc.SerialPortException {
while (serialPort.getInputBufferBytesCount() < 1) {
try {
Thread.sleep(1);
if (Thread.currentThread().isInterrupted()) {
return 0;
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
return 0;
}
}
return (byte)(serialPort.readBytes(1))[0];
}
}
Method getByte() blocks while input buffer is empty.
If you have not solve the problem, please mail me.
Original comment by [email protected]
on 7 Oct 2011 at 5:26
from java-simple-serial-connector.
I think that perhaps I did not express my question as clearly as I should have
done.
The method serialPort.readBytes(1); does not block when there are no new bytes.
Should it block?
If it should block then there is a defect.
If it should not block then I have misunderstood how it works.
In my application I need a method which does block until a new byte is
received.
The method I suggested above does work for me successfully and the jSSC library
seems to be very reliable.
I would consider fine tuning the line
Thread.sleep(1);
if the baud rate of the interface is very slow.
Original comment by [email protected]
on 11 Oct 2011 at 7:40
from java-simple-serial-connector.
The method readBytes(1) will blocks if your input buffer is empty. If you have
any data in input buffer this method will return the one byte from it.
If you need to know that you have any data in input buffer try to use
EventListener (last example on this page:
http://code.google.com/p/java-simple-serial-connector/wiki/jSSC_examples)
Original comment by [email protected]
on 12 Oct 2011 at 5:06
from java-simple-serial-connector.
Original comment by [email protected]
on 23 Nov 2011 at 4:21
- Changed state: Fixed
from java-simple-serial-connector.
Muy bueno ese ultimo metodo me sirbio de mucho
saludos.
Original comment by [email protected]
on 22 Oct 2014 at 12:14
from java-simple-serial-connector.
Related Issues (20)
- From 2nd time onwards weight reading not working in linux
- Hundreds of wakeups per second wastes lots of power on small host system even with idle port (no datat flow)
- SerialPort should allow for method that return Inpu/Outputstream HOT 1
- Raspberry Pi serial over usb adapter reads data only once (Watchport/H sensor) using jssc 2.8.0.0
- Two java application is opening the same port
- Always port busy on 32 bit system
- EventThread is never terminated
- Ubuntu return an empty serial list HOT 2
- readBytes() wrong when get second message
- jssc stops working after a while on windows 7 HOT 1
- Driver won't work with real COM1 port
- High CPU load using jssc HOT 1
- SerialPortTimeoutException trown while result shows it returned correct value and amount of bytes HOT 1
- Unable to load on Minibian, Raspberry Pi 1 B HOT 3
- JVM terminates with signal 6 (abort) after several hours of use
- Stuck on waitEvents() method forever when no data is available
- Set Timeout and Port disconnect throw exception HOT 1
- Trouble getting reader to return text using readByte() HOT 1
- SerialPortEventListener returns invalid type
- In Windows 10 SOMETIMES (casually 2 or 3 times on 5) receive signal is NOT raised
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from java-simple-serial-connector.