next topic »

[on:]

Hi,
with the Arduino 22 and NewSoftSerial Test from Mikal Hart.
I received from GPS Receiver the following information:
Goodnight moon!
$GPZDA,152444.00,14,12,2011,,*60
$GPGLL,4730.3739,N,00924.9473,E,152444.00,A,A*63
$GPZDA,152446.00,14,12,2011,,*62
$GPGLL,4730.3739,N,00924.9473,E,152446.00,A,A*61

with the new Arduino1.0 and SoftwareSerial Library Example
I lose characters by the $GPGLL sentence ???
Goodnight moon!
$GPZDA,152656.00,14,12,2011,,*61                           
$GPGLL,4730.3737,N,00924.9468,E,152656.00A$GPZDA,152658.00,14,12,2011,,*6F
$GPGLL,4730.3737,N,00924.9467,E,152658.00*$GPZDA,152700.00,14,12,2011,,*63
                                                                ¦ missing comma , A,A 63 and "CR" "LF"             
 Can someone help my ? I receive all 2 second first the $GPZDA after the $GPGLL sentence.               
 Willy

[Reply #1 on:]

Can you try SoftwareSerial on 22 - that way you can tell if the difference is library-related or Arduino software version related...

[Reply #2 on:]

I 've  found on 22 -  the library "SoftwareSerial"  but not a Example program
My testprogram I could not compile
#include <SoftwareSerial.h>
SoftwareSerial mySerial(2,0);
void setup() 
{
  Serial.begin(57600);
  Serial.println("Goodnight moon!");
  // set the data rate for the SoftwareSerial port
  mySerial.begin(9600);
 }

void loop()    // run over and over again
 {
    if (mySerial.available())
 {
     Serial.print((char)mySerial.read());
  }
}

Compiler Error 'class SoftwareSerial' has not nember named 'available'
 
Best regards Willy

[Reply #3 on:]

Weird, the SoftwareSerial library in Arduino 1.0 is the NewSoftSerial.  Can you post the whole program?

What if you install the NewSoftSerial library into Arduino 1.0, and try that?

[Reply #4 on:]

The in the NewSoftSerial ibrary contained NewSoftSerialTest program  isn't compatible with Arduino 1.0.  I cannot compile it.
With this SoftwareSerial Library Example program in Arduino 1.0
I lose characters by the $GPGLL sentence ???

#include <SoftwareSerial.h>
SoftwareSerial mySerial(2,0);
void setup() 
{
  Serial.begin(57600);
  Serial.println("Goodnight moon!");
  // set the data rate for the SoftwareSerial port
  mySerial.begin(9600);
  mySerial.println("Hello, world?");
}

void loop() // run over and over
{
  if (mySerial.available())
    Serial.write(mySerial.read());
 }
Best  regards Willy

[Reply #5 on:]

I have the NewSoftSerial  .cpp and .h adjusted to 1.0 and could compiled the NewSoftSerial Test program.
This program get absolutely the same results as with SoftwareSerial Library Example.
I loose by the characters $ GPGLL sentence?
The problem must therefore be at Arduino 1.0 . I hope this was helpful to find the error.
Best regards Willy

[Reply #6 on:]

looks like a baud rate problem. is it consistent?
the buffer is 64 bytes, you are receiving 150+.
What do you get when you buffer the overflow flag?