void initSerialPorts(void){
	TMOD =0x21;//put timer 1 into mode 1	
	TH1=254;//value to set timer to after it rolls over
	TL1=254;
	TR1=1;//start timer 1 running
	PCON = 0x00;//double clock for UART0
	TB8=0;//set programmable 9th data bit so it's a stop bit
	SCON0= 0xD0;//put serial port 0 into mode 3 and enable receiving
	ES0=1;//enable serial port interrupts
	EA=1;//enable interrupts
	return;
}