dac0832.c

arm7 AD0804 test source code

#include "..\inc\dac0832.h"
#include "..\inc\sysUtils.h"
#include "..\inc\console.h"
#define	ESC_KEY		0x1b

#define DAC0832_WR_H() rPDATF|=0x08;
#define DAC0832_WR_L() rPDATF&=~0x08;

#define DAC0832_CS_H() rPDATF|=0x04;
#define DAC0832_CS_L() rPDATF&=~0x04;

//总线地址声明
volatile U16 * DAC0832_MAdd = (volatile U16 *)(0x2000000);

void Write_Dac0832(U8 data)
{
	DAC0832_CS_L();
	sysUtilsUSecDelay(5);
	* DAC0832_MAdd=data|0xff00;
	sysUtilsUSecDelay(5);
	DAC0832_WR_L();
	sysUtilsUSecDelay(5);
	DAC0832_WR_H();
	sysUtilsUSecDelay(5);
	DAC0832_CS_H();
}

void Test_0832(void)
{
	U8 i=0;
	while(!( kbhit() && (getkey()==ESC_KEY)))
	{
		Write_Dac0832(i++);
		sysUtilsUSecDelay(50000);
	}
}