write a serial port program.then by shorting transmission and reception pin check whether interrupt has occured or not.....like that we can check serial port communication.........
regards
Parvathy
To test COM ports, you need a computer with a functioning serial port or a USB-to-serial adapter, appropriate software for communication (like terminal emulation software), and a loopback connector or a serial device to connect to the port. Additionally, you may require a null modem cable if you are testing communication between two devices. Ensure that the correct COM port settings (baud rate, data bits, parity, stop bits, and flow control) are configured in the software.
This is copied in from a test with a provided exhibit. It cannot be answered without it.
There is no test port.
The Villager does not have a test port. You need to tee into the line at the fuel filter.
you can test it by using software& hardware.After connecting the parallel port in your cpu's back side and connect a small wire between 2 & 3 pin on another end of the cable ,then run a c program(in dos) fro transmiter and receiver.If ur parallel port is working then u can see both transmitted data & received data on ur PC.
You would use a Loopback Plug, this allow an output signal to be returned as input.
The Villager does not have a test port, you need to tee into the line near the fuel filter to test pressure.
Loop-Back Plug
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The fuel test port on a 1997 Suburban is on the engine under the hood. It is located near the fuel lines.
no
A Loop-back plug.