Hi I am trying to set up a basic Serial communication with an Arduino for my application. The Idea is to receive one byte at a time.
I have been looking into may aspect on how to get Serial communication and JUCE working. I even tried to use openFrameworks with JUCE but with no successes.
Then I came along this thread viewtopic.php?f=2&t=5500&hilit=serial+arduino by jordanh, which pointed to a Serial code by Graffiti. I tried to implement it into my code.
But the code seems to give me errors with the explicit Thread initialization and other errors. I am working on OS X with xCode and using the latest JUCE library. The project was created using Introjucer, and I added the juce_SerialPort to the Juce Modules and licked them in my code.
Here is the Thread Error: [color=#FF0000]…/…/JuceLibraryCode/modules/juce_SerialPort/SerialPort.h:112:2: error: constructor for ‘SerialPortInputStream’ must explicitly initialize the base class ‘juce::Thread’ which does not have a default constructor [3][/color]
And here is a casting Error in the canReadString() method [color=#FF0000]…/…/JuceLibraryCode/modules/juce_SerialPort/SerialPort.h:133:8:{133:8-133:21}{133:15-133:21}: error: cannot cast from type ‘juce::MemoryBlock’ to pointer type ‘char *’ [3]
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Here is the code for the SerialPortInputStream
class SerialPortInputStream : public InputStream,
public ChangeBroadcaster,
private Thread
{
public:
SerialPortInputStream(SerialPort * port)
:port(port),bufferedbytes(0), notify(NOTIFY_OFF), notifyChar(0)
{
startThread();
}
~SerialPortInputStream()
{
signalThreadShouldExit();
waitForThreadToExit(500);
}
enum notifyflag{NOTIFY_OFF=0, NOTIFY_ON_CHAR, NOTIFY_ALWAYS};
void setNotify(notifyflag notify=NOTIFY_ON_CHAR, char c=0)
{
notifyChar = c;
this->notify = notify;
}
bool canReadString()
{
const ScopedLock l(bufferCriticalSection);
int iNdx=0;
while(iNdx<bufferedbytes)
if(((char*)buffer)[iNdx++]==0)return true;
return false;
}
bool canReadLine()
{
const ScopedLock l(bufferCriticalSection);
int iNdx=0;
while(iNdx<bufferedbytes)
if( (((char*)buffer)[iNdx++]=='\n') /*|| (((char*)buffer)[iNdx++]=='\r')*/)
return true;
return false;
}
virtual void run();
virtual int read(void *destBuffer, int maxBytesToRead);
virtual const String readNextLine() //have to override this, because InputStream::readNextLine isn't compatible with SerialPorts (uses setPos)
{
String s;
char c;
s.preallocateStorage(32);
while(read(&c, 1) && (c!='\n'))
s.append(String::charToString(c), 1);
s = s.trim();
return s;
}
virtual int64 getTotalLength()
{
const ScopedLock l(bufferCriticalSection);
return bufferedbytes;
};
virtual bool isExhausted()
{
const ScopedLock l(bufferCriticalSection);
return bufferedbytes?false:true;
};
virtual int64 getPosition(){return -1;};
virtual bool setPosition(int64 newPosition){return false;};
juce_UseDebuggingNewOperator
private:
SerialPort * port;
int bufferedbytes;
MemoryBlock buffer;
CriticalSection bufferCriticalSection;
notifyflag notify;
char notifyChar;
};
For the full code please go here: http://www.anticore.org/juce/
Dose anyone knows how to solve this please?
Am I doing something wrong or is the Serial code not setup properly?
Thank you in advance!
