• Where is the source-code of prinf & scanf
    After having some trouble with scanf & printf (scanf receives 0x0D and convertes this to 0x0A) (printf attaches CR to \n) i ask myself: where's the Sourcecode of all this function's? Printf &...
  • 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...
  • Redefining putchar ()
    Hello All, I'm using a Keil eval Cortex-M3 eval board and using uVision v4.23, and trying to redirect printf output so stdout displays on the lovely LCD display instead to the serial port. I have...
  • regarding putchar
    putchar work when continuous debugging and show output on serial window, but when u debug step by step ,after executing putchar it not show output on serial window, how i overcome this problem
  • Using putchar
    I am testing simple 8051 program that polls for a character from serial port and output it out to the serial port again. In the main function, I do the following continously u8_t xdata c; while...