process for implementing interrupts in serial port,we have done normal communication by fifo mode and also defined and init the handler function with irq 4,5. but it dose not work properly, please overcome me form this nuisance.
what is the difference between memory mapped io and port mapped io. and please tell me , parallel port and serial port which memory mapping followed??
I have completed bidirectional DTE to DTE communication using serial port cross cable MDC: multiple data compression and decompression is also done for case 4
I have completed Serial Port Loop back mode