SerialIP lib - use it on osx

Projects Networking, Protocols, and Devices
1

hey guys

I try to use the SerlialIP library under osx 10.6.4 - it looks like they dropped slattach: http://discussions.apple.com/thread.jspa?threadID=2491031

any idea how to use slip on a mac?

cheers

2

I try to use socat to redirect my serial port to an tcp port, thats my command:

socat -d -d -d -x -s -t 30 TCP-LISTEN:4441,reuseaddr,fork PTY:/dev/tty.usbmodem621,raw,nonblock,ispeed=115200,ospeed=115200,ignoreeof,echo=0,onlcr=0,iexten=0,echoctl=0,echoke=0,sane

I can connect to the port, but I didnt succeed! anyone tried this?

Why would I do that? two reasons:

  • make the arduino network enabled without changing anything on the arduino
  • reduce latency for the serial port, rxtx uses jni - this is slow, about 20ms per call

btw thats my test sketch:

#define BAUD_RATE 115200

byte serInStr[16]; 	 				 // array that will hold the serial input string

#define SERIALBUFFERSIZE 16
byte serialResonse[SERIALBUFFERSIZE];

static void sendAck() {
  digitalWrite(13, HIGH);
  serialResonse[0] = 'A';
  serialResonse[1] = 'K';
  Serial.write(serialResonse, 2);
}

void setup() {
  pinMode(13, OUTPUT);
  
  memset(serialResonse, 0, SERIALBUFFERSIZE);

  Serial.begin(BAUD_RATE); //Setup high speed Serial
  Serial.flush();
}


void loop() {
  if (readCommand(serInStr) == 0) {
    return;
  }

  digitalWrite(13, HIGH);
  delay(200);
  digitalWrite(13, LOW);

  sendAck();
}


byte readCommand(byte *str) {
  byte b,i,sendlen;

  i=0;
  while (Serial.available()>0 && i==0) {
    b = Serial.read();
    i=1;
  }

  return i;
}