Custom getchar

Is there a way to prevent getchar from echoing the input characters? I tried to write my own implementation of getchar , but the linker doesn't seem to let me do that. - Mike
Custom getchar

Is there a way to prevent getchar from echoing the input characters? I tried to write my own implementation of getchar , but the linker doesn't seem to let me do that. - Mike
putchar and getchar

i have read Mark Odell's UART driver. However,the code size is too large for me. can i just using the simple function call: char x,y; getchar(y); //get char from urat x=y; putchar(x); //put...
Prob in getchar

i am using the nrf24E1 board, i transmit the data through serial port and display on PC through hyperterminal, now i want that i have to give some data to the board through serial port and watch the display...
putchar and getchar

i have read Mark Odell's UART driver. However,the code size is too large for me. can i just using the simple function call: char x,y; getchar(y); //get char from urat x=y; putchar(x); //put...