Serial communication

[aloktambi]

Dear sir, i connect vritual com3 to com4. i am writing one prgram for sending data to com port3 .and want to read at com port 4.i am able to write data from com3. but i am not able to read it at COM port 4 where is the problem

[khan]

You can first test the port by connecting the com ports externally, then use HyperTerminal to test the connection. Run Hyperterminal twice, one for each port, and communicate between them; if it runs ok, then run your program on one end at a time, and communicate with HyperTerminal; that way you can find where the error is. this is this.

[vikas amin]

I havent tried with the virtual ports but it seens that the Hyperterminal solution is good one to try . :cool: Vikas Amin Embin Technology Bombay vikas.amin@embin.com