main.c

ARM开发例程,KEIL_ARM编译环境.

#include <math.h>
#include <LPC213X.H>
void init_timer (void);
 
void main(void)
{
	unsigned int val;
	unsigned char index,loop;
	VPBDIV = 0x02;							//Set the Pclk to 30 Mhz
	IODIR1 = 0x00FF0000;    				// P1.16..23 defined as Outputs  
	AD0CR  = 0x00250601;    				// Setup A/D: 10-bit AIN0 @ 3MHz 
	AD0CR  |= 0x01000000;    				// Start A/D Conversion 

	while(1)
	{
		for(index = 0;index < 80;index++)
		{		  
			do
			{
    			val 		= AD0DR;        	// Read A/D Data Register 
			}        
			while ((val & 0x80000000) == 0);  	//Wait for the conversion to complete

			DACR 			= val;
		}  
	}
}