The PC16550D is an improved version of he original 16450 USRT functionally identical to 16450 on powerup (Character Mode). The PC16550D can be put into an alternative mode, (FIFO mode) to relieve the CPU of excessive software overhead.
Implemented Serial Port DD for single byte with usage of 7 pins. Implemented Serial Port DD with FIFO for multiple bytes with the usage of 7 pins ….. Reading Interrupts……….
As RS-232 protocol says , frame consists of start , data , parity and stop bit , How Transmitter Transmits and Reciever recieves start , stop and parity bit if 8 bit data is sent from transmitter to reciever , … Continue reading
I am unable to understand , how to use stick parity and set break bit of LCR Register ? How parity error bit of LSR of Reciever machine will check the parity of data , sent by Transmitter device ,
Following is the code prepared by me.Only interrupt is left working on it.It is done for a loop back process.Any mistake … leave the comments #include”header.h” static int my_proc (char * buf, char ** start,off_t off, int count) { int … Continue reading
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