Hello
Can you give me some comments rather guidelines on the
following code.
My problem is when i am try to get the total number of
bytes in the receiveing buffer using SerReveiveCheck
error= SerReceiveCheck (refNumP, &numBytesP);
numBytesP always gives 0.
Can you tell me the way on which i am going to open
the port is currect or not?
thanks
case MainOpenButton :
if (IsLibFound)
{
SerOpenError= SerOpen (refNumP, port, baud);
if (SerOpenError==0)
{
IsPortOpen=true;
SerReceiveFlush(refNumP, 200);
CommFlags = serSettingsFlagBitsPerChar8 |
serSettingsFlagStopBits1;
SerCommSettings.baudRate = 9600;
SerCommSettings.flags = CommFlags;
SerCommSettings.ctsTimeout =
serDefaultCTSTimeout;
error = SerSetSettings(refNumP,
&SerCommSettings);
}
else if (SerOpenError==serErrAlreadyOpen)
{
MsgBox("Port is Already Open"," "," ");
SerCloseError= SerClose (refNumP);
}
else
MsgBox("Error during opening Port...."," "," ");
}
else
MsgBox("Serial Library Not Found"," "," ");
break;
case MainCloseButton :
if (IsLibFound)
{
SerCloseError= SerClose (refNumP);
if (SerCloseError==0)
{
IsPortOpen=false;
}
else if (SerCloseError==serErrNotOpen)
MsgBox("Port was not Opened"," "," ");
else
MsgBox("Error during closing Port...."," "," ");
}
else
MsgBox("Serial Library Not Found"," "," ");
break;
case MainSendButton :
if (IsPortOpen)
{
Len= StrLen(GetFieldText(MainSendField));
NumData=SerSend(refNumP,
GetFieldText(MainSendField),Len, &error);
if (error == serErrLineErr)
{
MsgBox("Line Error during sending data..."," ","
");
SerClearErr(refNumP);
}
else if (error) MsgBox("Error during sending
data..."," "," ");
}
else
MsgBox("Port was not Opened"," "," ");
break;
case MainReceiveButton :
if (IsPortOpen)
{
error= SerReceiveWait (refNumP, Len, 500) ;
if(error==serErrLineErr)
{
MsgBox("Line Error"," "," ");
SerClearErr(refNumP);
}
error= SerReceiveCheck (refNumP, &numBytesP);
if (error == serErrLineErr)
{
MsgBox("Line Error during receiving data..."," ","
");
SerClearErr(refNumP);
}
else if (error) MsgBox("Error during Reveiving
data..."," "," ");
else if(numBytesP>0)
{
NumData= SerReceive (refNumP,
ReceiveBuffer,numBytesP, -1, &error);
if(error==serErrLineErr)
{
MsgBox("Line Error"," "," ");
SerClearErr(refNumP);
}
if (error==serErrTimeOut)
MsgBox("Time out error"," "," ");
else
{
SetFieldText(MainReceiveField,ReceiveBuffer);
FldDrawField(GetObjectPtr(MainReceiveField));
}
}
}
break;
--- pjmitchell <[EMAIL PROTECTED]> wrote:
> I have converted an application from the 3.0 SDK to
> 3.5 and have run into
> some problems around the serial communications. Any
> help/pointers would
> be greatly appreciated.
>
> I read that applications should be using the new
> serial manager but I
> have not been able to find any sample code using it.
> The only sample I
> found uses the old calls. Are there any examples
> anywhere with the new
> calls? After converting to the new SDK my
> application seems to get stuck
> in a loop sending the same data over and over. Under
> the old SDK my app
> worked fine. And I am having trouble debugging to
> locate the problem.
>
> I am developing with CW 7 on a Mac using the latest
> POSE. Before
> converting to these versions I didn't have any
> problems debugging the
> serial communications with POSE, but now that I have
> converted I can't
> seem to debug the serial comms. Again, any samples
> that show this working
> would be really helpfull.
>
> Thanks,
> Peter
>
> --
> For information on using the Palm Developer Forums,
> or to unsubscribe, please see
http://www.palmos.com/dev/tech/support/forums/
__________________________________________________
Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail
http://personal.mail.yahoo.com/
--
For information on using the Palm Developer Forums, or to unsubscribe, please see
http://www.palmos.com/dev/tech/support/forums/
