This could be off topic (first post)...
I have a CF GPS driver for my clie (nx70-v), which shows in the connection
manager and I can create a new connection using it. I'd like to access the GPS
device on the serial port and receive data from it. using srmopen(),getting
the portID from the connection manager and opening the port works and I can see
the GPS initialize. When I try to receive data or check the buffer it gives a
srmStatusBreakSigOn error and I don't seem to be able to do anything to the
port except close it.
I have a eval copy of 'online' (generic serial/telnet device) which is able to
receiver but seems to connect directly using the virtual serial driver (not
100% sure about this). I saw a posting from someone at mark/space.com on a
driver issue a while ago...can you help
I've tried everything to get data out that I can think of but am completely
stumped. anyone please got any pointers. Does it need to be initialised or
something. Even sending control signals fails with an error...
I've included my open, close and checkport() code.
#define myCustomSerQueueSize 32000
Char buffer[1024]; // serial buffer.
int iCounter;
void *customSerQP; //my custom queue
UInt16 globalPortRef;
SrmOpenConfigType config;
void openGPSPort(UInt16* portRef)
{
Err err;
UInt32 port;
UInt32 baud;
UInt16 paramSize;
CncProfileID profileID;
char message[20];
MemSet (&config, sizeof (config), 0);
config.baud = 4800;
config.function = serFncUndefined;
err=CncProfileGetIDFromName("GPS",&profileID);
//get the baud rate
//paramSize=kCncParamBaudSize;
//err= CncProfileSettingGet(profileID,kCncParamBaud,&baud,¶mSize);
//get the port number
paramSize=kCncParamPortSize;
err= CncProfileSettingGet(profileID,kCncParamPort,&port,¶mSize);
err=SrmExtOpen(sysFileCVirtRfComm,&config,sizeof(config),portRef);
//err = SrmOpen(port, 4800, portRef);
if (err)StrPrintF(message, "%s", "error:port open");
else StrPrintF(message, "%s", "port opened");
WinDrawChars(message, StrLen(message), 10, 10);
//now set the custom buffer
// Allocate a dynamic memory chunk for our custom receive
// queue.
customSerQP = MemPtrNew(myCustomSerQueueSize);
// Replace the default receive queue.
if (customSerQP) {
err = SrmSetReceiveBuffer(*portRef, customSerQP,
myCustomSerQueueSize);
if (err)
{
SrmClearErr(*portRef);
if (err)StrPrintF(message, "%s", "error:receivebuffer");
}
else StrPrintF(message, "%s", "buffer set");
WinDrawChars(message, StrLen(message), 10, 20);
}
}
static void closePort(UInt16 portRef)
{
Err err;
char message[20];
// Now restore default queue and delete custom queue.
// Pass NULL for the buffer and 0 for bufSize to restore the
// default queue.
err = SrmSetReceiveBuffer(portRef, NULL, 0);
if (err)
{
StrPrintF(message, "%s", "error:buffer reset");
WinDrawChars(message, StrLen(message), 10, 30);
}
StrPrintF(message, "%s", "buffer reset");
WinDrawChars(message, StrLen(message), 10, 40);
if(customSerQP)
{
MemPtrFree(customSerQP);
customSerQP = NULL;
}
StrPrintF(message, "%s", "pointer reset");
WinDrawChars(message, StrLen(message), 10, 50);
err=SrmClose(portRef);
if (err)StrPrintF(message, "%s", "error:port reset");
else StrPrintF(message, "%s", "port reset");
WinDrawChars(message, StrLen(message), 10, 60);
}
void checkPort(UInt16 portRef)
{
Err err;
UInt32 bytes;
UInt32 toSend, numSent;
Char msg[] = "open\n";
UInt32 timeout;
UInt32 status;
UInt16 lineErrs;
char message[20];
err=SrmSendFlush(portRef);
//toSend = StrLen(msg);
//numSent = SrmSend(portRef, "open\n", 6, &err);
//if (err == serErrTimeOut)
//{
// StrPrintF(message, "%s", "error send");
//}
//else
// StrPrintF(message, "%d",numSent);
//WinDrawChars(message, StrLen(message), 10*iCounter, 80);
err=SrmControl(portRef,srmCtlStopBreak,NULL,NULL);
if (err) StrPrintF(message, "%s", "breakerror");
WinDrawChars(message, StrLen(message), 10*iCounter, 70);
err=SrmControl(portRef,srmCtlIrDAEnable,NULL,NULL);
if (err) StrPrintF(message, "%s", "IrDAError");
WinDrawChars(message, StrLen(message), 10*iCounter, 75);
bytes=100;
timeout=1000;
err= SrmReceiveWait (portRef,bytes,timeout);
if (err=serErrBadPort) StrPrintF(message, "%s", "This port doesn't
exist.");
if (err=serErrNotOpen ) StrPrintF(message, "%s", "The port is not open.
");
if (err=serErrTimeOut) StrPrintF(message, "%s", "receive timeout.");
if (err=serErrNotSupported ) StrPrintF(message, "%s", "not the
foreground port");
if (err=serErrBadParam ) StrPrintF(message, "%s", "bytes parameter
exceeds ");
if (err=serErrLineErr )
{
StrPrintF(message, "%s", "line error");
WinDrawChars(message, StrLen(message), 10*iCounter, 80);
err=SrmGetStatus (portRef,&status,&lineErrs);
if (status=srmStatusCtsOn) StrPrintF(message, "%s", "CTS line
is active.");
if (status=srmStatusRtsOn) StrPrintF(message, "%s", " RTS line
is active. ");
if (status=srmStatusDsrOn) StrPrintF(message, "%s", "DSR
line is active.");
if (status=srmStatusBreakSigOn) StrPrintF(message, "%s", "Break
signal is active.");
//if (status=srmStatusDtrOn) StrPrintF(message, "%s", "DTR is
active.");
//if (status=srmStatusDcdOn) StrPrintF(message, "%s", "DCD is
active.");
//if (status=srmStatusRingOn) StrPrintF(message, "%s", "Ring
detected.");
WinDrawChars(message, StrLen(message), 10*iCounter, 90);
if(lineErrs=serLineErrorParity)StrPrintF(message, "%s","Parity
error");
if(lineErrs=serLineErrorHWOverrun)StrPrintF(message,
"%s","Hardware overrun");
if(lineErrs=serLineErrorFraming)StrPrintF(message,
"%s","Framing error");
if(lineErrs=serLineErrorBreak)StrPrintF(message, "%s","Break
signal asserted");
if(lineErrs=serLineErrorHShake)StrPrintF(message, "%s"," Line
handshake error");
if(lineErrs=serLineErrorSWOverrun)StrPrintF(message,
"%s","Software overrun");
if(lineErrs=serLineErrorCarrierLost)StrPrintF(message,
"%s","Carrier detect signal dropped");
WinDrawChars(message, StrLen(message), 10*iCounter, 100);
}
else
{
StrPrintF(message, "%d",bytes);
WinDrawChars(message, StrLen(message), 10*iCounter, 80);
}
err=SrmReceiveCheck (portRef,&bytes);
if (err) StrPrintF(message, "%s", "Error");
StrPrintF(message, "%d", bytes);
WinDrawChars(message, StrLen(message), 10*iCounter, 110);
iCounter++;
}
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