@Override
protected void internal_connect() throws MyException, InterruptedException {
// try 3 times to get answare:
for (int t = 0; t < 3; t++) {
internal_reset();
// Send M110 to reset checksum
internal_send("M110");
doSendEvent("M110");
// 5 secound Timout for answer
for (int i = 0; i < 50; i++) {
Communication.class.wait(100); // give data the possibility to enter internal_receive!
if (!core.isConnected()) {
throw new MyException("Lost connection! (" + status + ")");
}
if (receiveCount > 0) {
break;
}
}
if (receiveCount > 0) {
break;
}
Communication.doChangedEvent("Printer not answering to M110! Retrying ...");
}
// Printer not answered!
if (receiveCount == 0) {
throw new MyException("Printer did not respond! Try to replug USB cable.");
}
// SET absolute
internal_send("G90");
doSendEvent("G90");
// 2 secound Timout for answer
synchronized (Communication.class) {
for (int i = 0; i < 20; i++) {
Communication.class.wait(100); // give data the possibility to enter internal_receive!
if (!core.isConnected()) {
throw new MyException("Lost connection!");
}
if (!internal_isbusy()) {
break;
}
}
}
if (internal_isbusy()) {
throw new MyException("Printer did not answer to G90!");
}
}
public static synchronized void send(String command) throws ComInterruptException {
if (!isConnected()) {
disconnect();
throw new ComInterruptException("Not connected !");
}
// No command
if (command.trim().equals("")) {
return;
}
while ((I().internal_isbusy() || initThread.isAlive()) && isConnected()) {
try {
Communication.class.wait();
} catch (InterruptedException ex) {
throw new ComInterruptException("Interrupt!");
}
}
if (!isConnected()) {
throw new ComInterruptException("Not connected !");
}
doSendEvent(command);
try {
I().internal_send(command);
} catch (MyException ex) {
Logger.getLogger(Communication.class.getName()).log(Level.SEVERE, null, ex);
resetAll();
doChangedEvent(ex.getMessage());
throw new ComInterruptException(ex.getMessage());
}
}
@Override
protected void internal_connect() throws MyException, InterruptedException {
internal_reset();
// Wait for GRBL to reset (1 secound)
Communication.doChangedEvent("Wait for GRBL Reset ...");
Communication.class.wait(3000);
// SET absolute
internal_send("$X");
doSendEvent("$X");
// 2 secound Timout for answer
synchronized (Communication.class) {
for (int i = 0; i < 20; i++) {
Communication.class.wait(100); // give data the possibility to enter internal_receive!
if (!core.isConnected()) {
throw new MyException("Lost connection!");
}
if (!internal_isbusy()) {
break;
}
}
}
if (internal_isbusy()) {
throw new MyException("Printer did not answer to $I!");
}
}
private void resend(int rs) throws MyException {
// Cecksum:
if (rs > cmdHistroy.size()) {
throw new MyException("Resend bigger than send history!");
}
String command = cmdHistroy.get(rs - 1);
command = "N" + cmdHistroy.size() + " " + command + " *";
byte cs = 0;
byte[] b = command.getBytes();
for (int i = 0; b[i] != '*' && i < b.length; i++) {
cs = (byte) (cs ^ b[i]);
}
command += "" + cs;
doSendEvent(" " + rs + "=>[" + command + "]");
core.send(command);
}