Some newer PCs only have one serial port. I use mine for my track ball. To have a serial port for my ham radio projects I have to use a USB serial port adapter. You cannot access the UART directly with one of these things.
If you try to use the Windows serial port through a normal Windows call you will find it a shared port. In this case each user app must release it before another user can use it. But if you can direct access the UART registers then you can bypass the Windows drivers. Bob Macklin Seattle, Wa. ----- Original Message ----- From: Chuck Hutton To: [email protected] Sent: Monday, September 01, 2008 3:05 PM Subject: RE: [soft_radio] Serial port shareing for SDR radio I don't understand what a USB to serial adapter has to do with this. I'd suggest the easiest way is simply to run the terminal application (Hyperterminal) on the P3 and then use a program that lets you access the P3 from your laptop through your WiFi LAN. PC Remote is one such program, and there are some freeware programs that do the same thing. Chuck ------------------------------------------------------------------------------ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Rotten Robbie Sent: Monday, September 01, 2008 2:15 PM To: [email protected] Subject: Re: [soft_radio] Serial port shareing for SDR radio The PC Serial port is not sharable! To be able to share it you must write a program that accesses the hardware directly. I don't think it can be done with USB serial port adapter. Bob Mackin Seattle, Wa. ----- Original Message ----- From: kcmuthumani To: [email protected] Sent: Monday, September 01, 2008 2:06 PM Subject: [soft_radio] Serial port shareing for SDR radio Hi all, I built a DDS controller using an AD9951, it uses a pic18F4550 (I had one on hand) to change the frequency, control of it is using a serial port using ASCII commands eg F 6.060 changes the frequency to 6.060 Mhz. I would like to know if there is any freeware serial port sharing programs out there. The way I have it set up now is the DDS is connected to a old P3 which a real serial port and connected to the home wi-fi network. DDS -- real serial port -- P3-server <<<>>>> Wi-Fi -- Laptop--Hyper Terminal. I would like to be able to use a terminal application on my laptop and send the data to the P3's serial port. I know of a few apps that do do this www.network-serialport.com sells one. Is there any freeware apps that can do about the same thing ? Thanks Kelvin
