//Configure UART for ADuC847

void serial_init(void)
{
T3CON = 0x83; //configure timer 3...
T3FD = 0x12; //...for 9600 baud
SCON = 0x50;
TI=1; //Initialise to send
}

//Output to UART:

printf("Data 1:%un",255); //Output result to UART
printf("Data 2:%un",32767); //Output result to UART
printf("Data 3:%un",32768); //Output result to UART


Output on HyperTerminal:

DATA 1:65535
DATA 2:32767
DATA 3:0

;---------------------------------------------------

I found out that if I send the data value in between:

a. 256 to 32767, I will get correct result on the PC's terminal.

b. 255 and less than, I will get garbage on the terminal (e.g. if 255, get 65535, or if 254 get 512)

c. 32768 and more than, I get 0 on the terminal.