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serial chat communications using cradle

Hi,

I have a Tungsten C that has a USB cradle port.
I am about to make an application that communicate with the desktop via the USB cradle port. I know that I can use all these functions to connect to serial port:
SrmOpen(logical_port, baud_rate, &port)
SrmSend(port, buffer, number_of_bytes, &error_code)
SrmReceive(port, buffer, number_of_bytes, timeout_ticks, &error_code)
SrmSendFlush(port)
SrmReceiveFlush(port, timeout)
SrmClose(port)

But, how does the desktop get the information? Is the desktop supposed to open a server to receive the data when the palm PDA use SrmSend function? If it is, what port number does the desktop has to listen a connection?

I seen a tutorial: http://mobile.eric-poncet.com/palm/tutorial/serial.html
But, I can't get it to work. Why does the server has to be run at port#6416 ? Is port number 6416 only for POSE? What about for the real USB cradle port for Tungsten C? Will it connect to the same port number?

Thanks,
Widy

vadim_ti

i think to make desktop server side for usb is quite difficult,
more simple solutiion is to make a conduit and to work via hotsync

widyanto

ASKER

Yeah, I looked at some way to communicate using USB, and it's quite difficult.
Do you know where I can get a tutorial for simple conduit? or what book that has a simple tutorial for conduit?

Thanks,
Widy

vadim_ti

you can download CDK (conduit development kit) from PalmSource
it is well documented and there are examples

http://www.palmos.com/dev/dl/dl_sdks/dl_cdk/

widyanto

ASKER

I can't find the examples, can you give me links.

Thanks

vadim_ti

after you install cdk you have examples

msjammu

widyanto,

When you hotsync to Palm OS emulator, using virtual phone, you must bind to a port number. All hoitsync calls are then redirected to that port number. 6416 in the default port.
-------------------------------------------
Virtual Phone works best if you select TCP/IP. Selecting TCP/IP redirects all data transfers intended for the serial port to a TCP/IP socket and does not require the use of a null modem cable.

The IP address: entry field default is localhost:6416. This option is available when Serial Port is set to TCP/IP. You can indicate host and port number that the Palm OS Emulator is to connect to. Virtual Phone must use the same settings

:)

widyanto

ASKER

The examples in the CDK is not really clear. Is there any other example that has a step by step?

What is "virtual phone" ?
Is it only POSE can use a port number? or a real Palm device can hotsync using port number?

Thanks,

ASKER CERTIFIED SOLUTION

msjammu

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