Serial coms to Arduino SLOOOW

Processing Project Guidance
3

Enclosed are the sections of Arduino & Processing Functiosn

// Processing Collection of functions to send data to Ard //<>// //<>// //<>//

/*
There are flags for when a message or ping has been sent. When a flag is TRUE,
 it means a msg or data has been sent but not acknowleded. 
 
 
 
 
 */

String procACK = "P";
String inBuf = " ";
String dataPak = " ";
String[] serialInArray = new String[30];    // Where we'll put what we receive
int serialCount = 0;                 // A count of how many bytes we receive
int inByte;
int lf = 10, ctr = -1;                 // Starting position of the ball
boolean firstContact = false;        // Whether we've heard from the microcontroller
byte Mode;      // '0' = wait


void sendData(long dst, long brg) {
  dataPak = (':' + str(dst) +':' + str(brg) + ':' + '\n');
  //dataPak format = (":123:45:");
  comPort.write(dataPak);
  delay(6);
  //comPort.write(0);
  msgSent = true;
}


// Process incoming msgs from Arduino

void receiveData() {
  mcMsg = '.';
  charct = 0;
  if (comPort.available()>0) {
    comBuf = comPort.readStringUntil(lf);
    delay(2);
  }
  if (comBuf != null) mcMsg = comBuf.charAt(0);  // Message from Arduino/Motor controller

  switch(mcMsg) {
  case 'A':
    isConnected = true;
    wasConnected = true;
    //ardup = true;
    break;
  case 'K':
    msgSent = false;   // The msg was recieved at Arduino
    //isConnected = true;
    //wasConnected = true;
    break;
  case 'Z':  // P is the real Ping ack - z for debug
    //isConnected = true;   // Ard sent a Ping ack
    //wasConnected = true;
    pingsent = false; // Ack from Ard Ping has been  received
    pingAck = true;
    break;
  default:
    //wasConnected = pingAck = false;
    break;
  }
}



void sendTest() {
  String tstmsg = "123:345:567:888";
  for (i = 0; i<10; i++) {
    comPort.write(tstmsg);
    delay (200);
  }
}

Here Follows Ard Code:

boolean recieveData() {
	msgin = false;
	len = 0;
	cnt = ComLink.available();
	inbuf = ComLink.readStringUntil(10);
	delay(5);  // wait for next char

// Evalueate data

	if (inbuf[0] == 'A' && !haveConnected) {
		haveConnected = true;
		ComLink.write("K\n");    // ACK - Tell Proccing we are here
		//ComLink.read();  // Flush inbuf
	}
	else if (inbuf[0] == 'E') {  // Enable ACT Steppers
		ACTDST.enableOutputs();
		ACTBRG.enableOutputs();
	}
	else if (inbuf[0] == 'D') {   // Disable ACT Steppers
		ACTDST.disableOutputs();
		ACTBRG.disableOutputs();
	}
	else if (inbuf[0] == 'P') {
		ComLink.write("P\n");  //Ping response
		//ComLink.read();
		//Serial.println(pingCtr++);
	}
	else if (inbuf[0] == ':') {
		//buf = ComLink.readStringUntil(10);
		sDst = getValue(inbuf, ':', 1);
		sBrg = getValue(inbuf, ':', 2);
		dstA = long((sDst.toInt()) / DSTDIV);  // Set direction
		brgA = long((sBrg.toInt()) / BRGDIV);
		prvBrgA > prvBrgA ? Bdir = 1 : Bdir = -1;
		ComLink.write("K\n");  //Ack Msg Rcved
		msgin = true;
	}
	return (msgin);
}


String getValue(String data, char separator, int index) {
		int found = 0;
		int strIndex[] = { 0, -1 };
		int maxIndex = data.length() - 1;

		for (int i = 0; i <= maxIndex && found <= index; i++) {
			if (data.charAt(i) == separator || i == maxIndex) {
				found++;
				strIndex[0] = strIndex[1] + 1;
				strIndex[1] = (i == maxIndex) ? i + 1 : i;
			}
		}
		return found > index ? data.substring(strIndex[0], strIndex[1]) : "";
	}