www.pudn.com > uCOS+GUI.rar > InitInt.C

/* 
********************************************************************************************************* 
* 文件: InitInt.C 
* 描述: 初始化中断优先级等设置,请仔细控制此处的开中断. 
* 编写: 深思 (001-12345@sohu.com). 
********************************************************************************************************* 
*/ 
#include "44b0x.h" 
 
void InitInt (void) 
{ 
#define  V      0       // 0 = Vectored interrupt mode 1 = Non-vectored interrupt mode 
#define  I      0       // 0 = IRQ interrupt enable 
#define  F      1       // 0 = FIQ interrupt enable (Not allowed vectored interrupt mode) 1 = Reserved 
    INTCON = ((V<<2)+(I<<1)+F); 
 
//               EINT0   EINT1   EINT2   EINT3  EINT4567  TICK   ZDMA0   ZDMA1   BDMA0   BDMA1   WDT   UERR0/1   TIMER0  TIMER1  TIMER2  TIMER3  TIMER4 TIMER5  URXD0  URXD1  IIC  SIO     UTXD0  UTXD1  RTC   ADC. 
// 0 = IRQ mode 1 = FIQ mode 
    INTMOD   = ((0<<25)+(0<<24)+(0<<23)+(0<<22)+(0<<21)+(0<<20)+(0<<19)+(0<<18)+(0<<17)+(0<<16)+(0<<15)+(0<<14)+(0<<13)+(0<<12)+(0<<11)+(0<<10)+(0<<9)+(0<<8)+(0<<7)+(0<<6)+(0<<5)+(0<<4)+(0<<3)+(0<<2)+(0<<1)+0); 
// 0 = Service available 1 = Masked 
    INTMSK   = ((1<<25)+(1<<24)+(1<<23)+(1<<22)+(1<<21)+(1<<20)+(1<<19)+(1<<18)+(1<<17)+(1<<16)+(1<<15)+(1<<14)+(1<<13)+(1<<12)+(1<<11)+(1<<10)+(1<<9)+(1<<8)+(1<<7)+(1<<6)+(1<<5)+(1<<4)+(1<<3)+(1<<2)+(1<<1)+1); 
 
// IRQ priority of slave register 
    I_PSLV = 0x1b1b1b1b; 
// IRQ priority of master register 
    I_PMST = 0x00001f1b; 
// IRQ interrupt service pending clear register 
    I_ISPC = I_ISPR;                            // Clear all pending. 
// FIQ interrupt service pending clear register 
    F_ISPC = F_ISPR;                            // Clear all pending. 
 
    EXTINTPND = 0x0f;                           // External(4,5,6,and 7) interrupt pending Register. cleared by writing 1. 
} 
 
/* 
******************************************************************************************************** 
* End. 
******************************************************************************************************** 
*/