c8051f040的比较器程序new

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1、//-----------------------------------------------------------------------------//F04x_Comparator0_ResetSource.c//-----------------------------------------------------------------------------//Copyright2006SiliconLaboratories,Inc.//http://www.silabs.com////ProgramDescripti

2、on:////SiliconLaboratoriesMCUscanusedifferentmechanismstoresetthedevice.////ThissoftwareshowsthenecessaryconfigurationtouseComparator0as//aresetsource.Thecodeexecutestheinitializationroutinesandthen//spinsinaninfinitewhile()loop.IfthebuttononP1.6(onthetarget//board)ispres

3、sed,thenthecomparatorspostiveinput(CP0+)inputwilldrop//belowthecomparator'snegativeinput(CP0-).Whenthishappens,//Comparator0willcausethedevicetobereset.////Whenthecodeiswaitingforthebuttontobepressed,theLEDison.////Uponeverydevicereset,thecodecheckstheRSTSRCregistertodete

4、rmine//ifthelastresetwasduetoacomparatorreset.Ifitwasa//comparatorreset,thecodewillblinktheLEDconstantly.////HowToTest:////1)Compileanddownloadcodetoa'F04xtargetboard//2)Onthetargetboard,connectP2.6toP3.7andP2.7toP1.6//3)RunthecodeandverifythattheLEDison//4)PresstheP3.7sw

5、itch(thiscausesacomparatorreset)//5)VerifythattheLEDisblinking//////FID:04X000003//Target:C8051F04x//Toolchain:KeilC517.50/KeilEVALC51//CommandLine:None//////Release1.0//-InitialRevision(GP)//-17MAY2006////------------------------------------------------------------------

6、-----------//IncludeFiles//-----------------------------------------------------------------------------#include//-----------------------------------------------------------------------------//GlobalConstants//-------------------------------------------------

7、----------------------------#defineSYSCLK24500000//ClockspeedinHz#defineCOMPARATOR_SETTLE10//SettletimeinussbitLED=P1^6;//GreenLedsbitSWITCH=P3^7;//Push-buttonswitchonboard//-----------------------------------------------------------------------------//FunctionPrototypes/

8、/-----------------------------------------------------------------------------voidOSCILLATOR_Ini