Hi Folks,
what is the best way to send an "AT-Command" to a Modem?
I found several ways on the Internet:
1) SerialPort Sample of Apple
// Now open the modem port we found, initialize the modem, then close it
if (!bsdPath[0])
{
printf("No modem port found.\n");
return EX_UNAVAILABLE;
}
fileDescriptor = OpenSerialPort(bsdPath);
if (-1 == fileDescriptor)
{
return EX_IOERR;
}
if (InitializeModem(fileDescriptor))
{
printf("Modem initialized successfully.\n");
}
else {
printf("Could not initialize modem.\n");
}
2) AMSerialTest
NSString *sendString = [[inputTextField stringValue] stringByAppendingString:@"\r"];
if(!port) {
// open a new port if we don't already have one
[self initPort];
}
if([port isOpen]) { // in case an error occured while opening the port
[port writeString:sendString usingEncoding:NSUTF8StringEncoding error:NULL];
}
3) NSFileHandle
myPath = modempath;
writeFile = [NSFileHandle fileHandleForUpdatingAtPath];
[writeFile writeData:myPath];
It looks like, that the 3rd one would be the easiest way - but where shall I put the "at-commands" there?
Thanks for your hints and tipps...
BR
Stefan
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