arm菜鳥外部中斷學(xué)習(xí)筆記

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1、ARM菜鳥外部中斷學(xué)習(xí)筆記*----------------------------------------------------------------------?????????????ARM菜鳥外部中斷學(xué)習(xí)筆記HotPower@126.com?2005.7.21與西安大雁塔村隊(duì)部-----------------------------------------------------------------------*//***********************************************************************//*?This

2、fileispartoftheCAARMCCompilerpackage????????????????*//*?CopyrightKEILELEKTRONIKGmbH2002-2004????????????????????????*//***********************************************************************//*????????????????????????????????????????????????????????????????????*//*?MAIN.C:?Demonstrationofvariousi

3、nterruptfunctions?????????????*//*????????????????????????????????????????????????????????????????????*//***********************************************************************/#include???//PhilipsPeripheralRegisters#include"LPC21xxDEF.H"???//ARM菜鳥HotPower創(chuàng)建定義文件/**softwareinterruptfunct

4、ionacceptparametersandrunin*supervisormode(interruptprotected).*/intmyfunc1(inti1,longi2)__swi(8)?{?return(i1/i2);}intmyfunc2(inti1)__swi(9)?{?return(i1<<4);}/**standardinterruptfunctionsavesonlyR0-R12andreturnswith*/voidDefaultIRQ(void)__irq{unsignedinttemp;?temp=VICIRQStatus;?IOPIN1^=(1<

5、???//取反P1.15}voidEINT0IRQ(void)__irq{unsignedinttemp;?temp=VICIRQStatus;?IOPIN1^=(1<

6、fastinterruptfunctionsavesonlyR0-R7andreturnswith*/voidFIQ_Handler(void)???__fiq?{//IOSET1=0x00010000;???????//SetpinP1.16//?IOSET1=(1<

7、ionshavenoregistersave/restoreandnoreturn.*/voidtsk(void)__task{?while(1);}?/**Sample'main'function*/intres;voidmain(void)?{//?IODIR1????????=0x00FF0000;?????//SettheLEDpinsasoutputs?IODIR1????????=(1<

8、(1<