/*******************************************************************************
Copyright?（c）?2007?Freescale?Semiconductor
Freescale?Confidential?Proprietary
\brief??????Driver?for?basic?S12XE?ADC?operation
\author?????r66193
\version????0.1
\date???????May/2008
*******************************************************************************/
#include?“mc9s12xep100.h“
#include?“comdef.h“
#include?“stdio.h“
#include?“crg.h“
#include?“xgate.h“


#pragma??DATA_SEG??SHARED_DATA
INT16U???AtdData[16];


void?InitADC（void）
{
????DDR0AD0?=?0;????????????
????DDR1AD0?=?0;??????????//?All?16?Channels?are?used
????
????ATD0CTL0?=?0x0F;??????//?B0000_1111:?multiple?channel?conversion?（MULT=1）?wraparound?
??????????????????????????//????????????to?AN0?after?converting?A15
????
????ATD0CTL1?=?0xD3;??????//?B?1101_0011:
??????????????????????????//???|--|?----
??????????????????????????//???|\||???\-:?External?triggger?is?PIT?Channel1
??????????????????????????//???|?||-----:?Discharge?before?sample
??????????????????????????//???|?|------:?12bit?resoltion
??????????????????????????//???|--------:?External?trigger
?????
???
????ATD0CTL2?=?0x46;??????//?B?0100_0100?
??????????????????????????//????||?--|||-:?Compare?interrupt?interrupt?disable
??????????????????????????//????||?\|||--:?Sequence?completed?interrupt?disable
??????????????????????????//????||??||---:?External?trigger?mode?enable
??????????????????????????//????||??|----:?falling?edge?trigger?not?used?for?PIT?trigger
??????????????????????????//????||-------:?Convertion?abort?in?STOP?mode?
??????????????????????????//????|--------:?Fast?flag?clear?
????
????ATD0CTL3?=?0x80;??????//?B?1000_0000
??????????????????????????//???|-----|--
??????????????????????????//???|?\|??|\-:?Continue?in?debugger
??????????????????????????//???|??|??|--:?FIFO?mode?not?used
??????????????????????????//???|??|-----:?16?sequence?conversion
??????????????????????????//???|--------:?Result?right?justified
????
????ATD0CTL4?=?0x44;??????//?B?0100_0100
??????????????????????????//???--|------
??????????????????????????//????\|????\-:?PSR=4?ATD?clk=4M?@?40M?busclk
??????????????????????????//?????|------:?Sample?time?=?8?clk
????
????ATD0CTL5?=?0x10;??????//?B?0001_0000
??????????????????????????//????|||?----
??????????????????????????//????|||???\-:?First?channel?is?AN0
??????????????????????????//????|||-----:?Multi?channel?sample?mode
??????????????????????????//????||------:?Single?conversion?sequence?
??????????????????????????//????|-------:?Special?channel?conversion?disabled
}


/*******************************************************************************
*?\brief????ADC?single?conversion?SW?trigger
*?\param????const?unsigned?int?chan
*?\return???unsigned?int?
*/
/*????
INT16U?lle_ADC（INT8U?u8ADC_chan）
{
????ATD0CTL5_Cx?=?u8ADC_chan;???
????
????????while（!ATD0STAT0_SCF）;???//?Wait?for?end?of?conversion??
????????
????ATD0STAT0_SCF?=?1;

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

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?????文件?????????60??2008-05-04?11:24??飛思卡爾小型發動機EMS源代碼\Install?Crankshaft?Simulation?Software\s12xe_12t24t\cmd\P&E_Multilink_CyclonePro_Preload.cmd

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?????文件??????14944??2008-05-20?15:40??飛思卡爾小型發動機EMS源代碼\Install?Crankshaft?Simulation?Software\s12xe_12t24t\prm\SofTec_HCS12_linker.prm

............此處省略469個文件信息