Hi MCU is recieving the data from other MCU& i am unable to store the data using SBUF..so pls help me.. only the last byte is receiving again & again...
thanks
here my source code
p = 0; for(i1=0;i1<448;i1++) ser_buf[i1]=SBUF;
for(i2=0;i2<8;i2++) { for(i1=0;i1<48;i1++) prt_buf[i1] = 0; for(i1 = 0;i1<48;i1++) prt_buf[i1] =ser_buf[p++];
print_graph();
}
"yes. a very good way to make sure that you receive fast enough is the the recieve baud rate faster than the transmit baud rate."
Not at all - the receiver should try to match the baudrate of the transmitter as much as possible, since the A in UART stands for "asynchronous". So the receiver counts time to figure out where to sample the data signal to extract the individual bits. It obviously must counts time in the same way that the transmitter did, or it will greatly fail to separate the individual bits in a transmitted character.
It's just that the baudrate controls how long time it takes for a UART to perform a transfer of a full character - so the fastest possible time from reception of one character until the next character may be available to pick up from the data register of the receiving UART (if the transmitter manages to start the next transmission instantly when the previous character was sent).
and when you nuts enable the fifo [firs in first out] and use the interrupt.
"... you nuts enable the fifo ..."
Pray tell you nut, precisely what 8051 FIFO is that?
it was the suggestion. may be. www.8052.com/.../100570
it was the suggestion. may be. www.8052.com/.../100570 :
The LPC932 has a double buffer instead of the standard single byte UART
the shortest FIFO I ever heard of
Erik