#include?“stm32f10x_map.h“

#define??DAC_DIN_0	????????????????GPIOD_BRR??=?BB0
#define??DAC_DIN_1		GPIOD_BSRR?=?BB0
#define??DAC_SCLK_0		GPIOD_BRR??=?BB1
#define??DAC_SCLK_1		GPIOD_BSRR?=?BB1
#define??DAC_SYNC_0		GPIOD_BRR??=?BB3
#define??DAC_SYNC_1		GPIOD_BSRR?=?BB3

#define?BB0??????????????????（（u16）0x0001）??
#define?BB1??????????????????（（u16）0x0002）??
#define?BB2??????????????????（（u16）0x0004）??
#define?BB3??????????????????（（u16）0x0008）??
#define?BB4??????????????????（（u16）0x0010）??
#define?BB5??????????????????（（u16）0x0020）??
#define?BB6??????????????????（（u16）0x0040）??
#define?BB7??????????????????（（u16）0x0080）??
#define?BB8??????????????????（（u16）0x0100）??
#define?BB9??????????????????（（u16）0x0200）??
#define?BB10?????????????????（（u16）0x0400）??
#define?BB11?????????????????（（u16）0x0800）??
#define?BB12?????????????????（（u16）0x1000）??
#define?BB13?????????????????（（u16）0x2000）??
#define?BB14?????????????????（（u16）0x4000）??
#define?BB15?????????????????（（u16）0x8000）?

#define?DAC8411_Ref_Value?????（float）2.5

void?DAC_delay1（void）
{
?	u32?i;
	for（i=0;?i<5;i++）;
}

void?DAC_OUT（float?V_Value）
{
	u32?DAC8411_Coding;
	u32?control_word;
	u8?i;

	DAC8411_Coding?=?（u32）（65535?*?V_Value/DAC8411_Ref_Value）;
	DAC8411_Coding?=?DAC8411_Coding<	DAC8411_Coding?&=??~（u32）（B_23?|?B_22）;
	DAC_SYNC_1;
	DAC_delay1（）;
	DAC_delay1（）;
	DAC_SCLK_0;
	DAC_DIN_0;
	DAC_SYNC_0;
	for?（i?=?0;?i?	{
		DAC_SCLK_1;
????	control_word?=?0x800000;
		control_word?>>=?i;
		if?（DAC8411_Coding?&?control_word）
		{
			DAC_DIN_1;
		}
	????else
	????{
	????????DAC_DIN_0;
	????}
	????DAC_delay1（）;
	????DAC_SCLK_0;
		DAC_delay1（）;
	}
	DAC_SYNC_1;
	DAC_SCLK_0;
	DAC_DIN_0;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1747??2012-08-23?11:36??DAC8411.c

?????文件??????18785??2012-02-17?16:08??stm32f10x_map.h

-----------?---------??----------?-----??----

????????????????20532????????????????????2