//###########################################################################
//
//?FILE:	DSP281x_Adc.c
//
//?title:	DSP281x?ADC?Initialization?&?convert?Functions.
//
//###########################################################################
//
//??Ver?|?dd?mmm?yyyy?|?Who??|?Description?of?changes
//?=====|=============|======|===============================================
//??1.00|?11?Sep?2003?|?WILLBUR?|?Changes?since?previous?version?（v.58?Alpha）
//??????|?????????????|??????|?ADC_usDELAY?changed?from?5000L?to?8000L
//###########################################################################

#include?“DSP281x_Device.h“????????????????//?DSP281x?Headerfile?Include?File


#define?ADC_usDELAY??8000L
#define?ADC_usDELAY2?20L
void?DELAY_US（）;
interrupt?void?adc_isr（void）;
Uint16?LoopCount;
Uint16?ConversionCount;
Uint16?Voltage1[1024];
Uint16?Voltage2[1024];
//---------------------------------------------------------------------------
//?InitAdc:?
//---------------------------------------------------------------------------
//?This?function?initializes?ADC?to?a?known?state.
//
void?InitAdc（void）
{
	extern?void?DSP28x_usDelay（Uint32?Count）;
	
????//?To?powerup?the?ADC?the?ADCENCLK?bit?should?be?set?first?to?enable
????//?clocks?followed?by?powering?up?the?bandgap?and?reference?circuitry.
????//?After?a?5ms?delay?the?rest?of?the?ADC?can?be?powered?up.?After?ADC
????//?powerup?another?20us?delay?is?required?before?performing?the?first
????//?ADC?conversion.?Please?note?that?for?the?delay?function?below?to
????//?operate?correctly?the?CPU_CLOCK_SPEED?define?statement?in?the
????//?DSP28_Examples.h?file?must?contain?the?correct?CPU?clock?period?in
????//?nanoseconds.?For?example:
????AdcRegs.ADCTRL3.bit.ADCCLKPS=2;
	AdcRegs.ADCTRL1.bit.CPS=1;
????AdcRegs.ADCTRL1.bit.ACQ_PS=15;
	//以上設置本程序的始終選擇，參考Pag41（第四章?相關法超聲波流量計的軟件設計）

	AdcRegs.ADCTRL3.all=0x100;??????????????//配置AMREFP/ADCREFM為輸入引腳（0X80H）
	asm（“?RPT?#10?||?NOP“）;?????????????????//等待外部參考使能
	AdcRegs.ADCTRL3.bit.ADCBGRFDN?=?0x3;	//?Power?up?bandgap/reference?circuitry
	????????????????????????????????????????//（帶間隙參考電路上電）
	DELAY_US（ADC_usDELAY）;??????????????????//?Delay?before?powering?up?rest?of?ADC
	AdcRegs.ADCTRL3.bit.ADCPWDN?=?1;		//?Power?up?rest?of?ADC（其他電路上電）
	DELAY_US（ADC_usDELAY2）;?????????????????//?Delay?after?powering?up?ADC
}
//---------------------------------------------------------------------------
//?DELAY_US；?
//---------------------------------------------------------------------------
//?This?function?realize?delay?time
	
void?DELAY_US（Uint16?time）
{int?ij;
?for（i=time;i>0;i--）
??for（j=0xff;j>0;j--）;
}

//---------------------------------------------------------------------------
//?Adc_Conv:?
//---------------------------------------------------------------------------
//?This?function?realize?ADC?convertion.

void?Adc_Conv（void）
{
??

?InitAdc（）;

?InitPieVectTable（）;??????????????????

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

?????文件???????2657??2011-07-19?14:28??2812flowmeter-7\cc_build_Debug.log

?????文件??????25665??2011-07-19?19:54??2812flowmeter-7\Debug\2812_Adc.obj

?????文件???????4752??2011-07-19?14:27??2812flowmeter-7\Debug\2812_DataProcess.obj

?????文件???????7091??2011-07-19?14:27??2812flowmeter-7\Debug\2812_fft-ifft-1024.obj

?????文件???????5790??2011-07-19?14:01??2812flowmeter-7\Debug\2812_fft_1024_2.obj

?????文件??????36197??2011-07-19?14:27??2812flowmeter-7\Debug\2812_Keyboard_Led.obj

?????文件??????27110??2011-07-19?14:27??2812flowmeter-7\Debug\2812_Rs232.obj

?????文件???????1381??2011-07-19?14:28??2812flowmeter-7\Debug\DSP281x_CodeStartBranch.obj

?????文件??????37039??2011-07-19?14:28??2812flowmeter-7\Debug\DSP281x_DefaultIsr.obj

?????文件?????117665??2011-07-19?14:28??2812flowmeter-7\Debug\DSP281x_GlobalVariableDefs.obj

?????文件??????10303??2011-07-19?14:28??2812flowmeter-7\Debug\DSP281x_Gpio.obj

?????文件???????2430??2011-07-19?14:28??2812flowmeter-7\Debug\DSP281x_MemCopy.obj

?????文件???????5338??2011-07-19?14:28??2812flowmeter-7\Debug\DSP281x_PieCtrl.obj

?????文件??????16480??2011-07-19?14:28??2812flowmeter-7\Debug\DSP281x_PieVect.obj

?????文件??????11613??2011-07-19?14:28??2812flowmeter-7\Debug\DSP281x_SysCtrl.obj

?????文件???????9620??2011-07-19?14:28??2812flowmeter-7\Debug\main.obj

?????文件??????21731??2011-07-19?14:28??2812flowmeter-7\Debug\test.map

?????文件?????176093??2011-07-19?14:28??2812flowmeter-7\Debug\test.out

?????文件????????181??2011-07-19?19:54??2812flowmeter-7\Debug.lkf

?????文件???????5730??2011-07-07?20:59??2812flowmeter-7\source\2812_Adc.c

?????文件???????2078??2011-07-19?14:18??2812flowmeter-7\source\2812_DataProcess.c

?????文件???????1579??2011-07-19?09:22??2812flowmeter-7\source\2812_fft-ifft-1024.c

?????文件????????929??2011-07-19?11:33??2812flowmeter-7\source\2812_fft_1024_2.c

?????文件???????6218??2011-07-07?19:54??2812flowmeter-7\source\2812_Keyboard_Led.c

?????文件???????5693??2011-07-19?09:11??2812flowmeter-7\source\2812_Rs232.c

?????文件???????8489??2009-08-04?09:30??2812flowmeter-7\source\DSP281x_Adc.h

?????文件???????1710??2011-06-10?10:55??2812flowmeter-7\source\DSP281x_CodeStartBranch.asm

?????文件???????5476??2009-08-04?09:30??2812flowmeter-7\source\DSP281x_CpuTimers.h

?????文件??????25423??2011-06-10?10:59??2812flowmeter-7\source\DSP281x_DefaultIsr.c

?????文件???????4680??2011-06-10?10:07??2812flowmeter-7\source\DSP281x_DefaultIsr.h

............此處省略42個文件信息