#include <LPC213x.H> // Philips Peripheral Registers
#include <LPC213xDEF.H> //ARM菜鸟HotPower创建定义文件
void EXTintIRQ (void) __attribute__ ((interrupt("IRQ")));
//void FIQ_Handler (void) __attribute__ ((interrupt("FIQ")));
//void IRQ_Handler (void) __attribute__ ((interrupt("IRQ")));
void EINT0IRQ(void) __attribute__ ((interrupt));
void EINT1IRQ(void) __attribute__ ((interrupt));
void EINT2IRQ(void) __attribute__ ((interrupt));
void EINT3IRQ(void) __attribute__ ((interrupt));
//void UserDefineIRQ(void) __attribute__ ((interrupt));
void UserDefineIRQ(void)
{
if (VICIRQStatus & (1 << VICIntSel_SoftInt31)) {
IOPIN1 ^= (1 << P1_19); //取反P1.19
EXTINT = (1 << VICIntSel_SoftInt31); //清除VICIntSel_SoftInt31中断标志
// VICSoftIntClr = (1 << VICIntSel_SoftInt31);
}
VICVectAddr = 0;
}
//extern
void EXTintFIQ (void) __attribute__ ((interrupt("FIQ")));
void EXTintFIQ(void)
{//VICIntSelect非0
unsigned temp;
temp = VICFIQStatus;
if (temp & (1 << VICIntSel_EINT0)) {
IOPIN1 ^= (1 << P1_16); //取反P1.16
EXTINT = (1 << EINT0); //清除INT0中断标志
}
else if (temp & (1 << VICIntSel_EINT1)) {
IOSET1 = (1 << P1_17); //P1.17=1
while(EXTINT & (1 << EINT1)) {
EXTINT = (1 << EINT1); //清除INT1中断标志
}
IOCLR1 = (1 << P1_17); //P1.17=0
}
else if (temp & (1 << VICIntSel_EINT2)) {
IOPIN1 ^= (1 << P1_18); //取反P1.18
EXTINT = (1 << EINT2); //清除INT2中断标志
}
else if (temp & (1 << VICIntSel_EINT3)) {
IOPIN1 ^= (1 << P1_19); //取反P1.19
EXTINT = (1 << EINT3); //清除INT3中断标志
}
else {//其他干扰源
//再次填入干扰处理代码
}
// VICSoftIntClr = temp;//抗击无效VICSoftInt=XXX的入侵
VICVectAddr = 0;
}
void EXTintIRQ (void) {//VICIntSelect=0且VICVectCntl0~VICVectCntl15都未中断使能
unsigned long temp;
temp = VICIRQStatus;
if (temp & (1 << VICIntSel_EINT0)) {
IOPIN1 ^= (1 << P1_16); //取反P1.16
EXTINT = (1 << EINT0); //清除INT0中断标志
}
else if (temp & (1 << VICIntSel_EINT1)) {
IOPIN1 ^= (1 << P1_17); //取反P1.17
while(EXTINT & (1 << EINT1)) {
EXTINT = (1 << EINT1); //清除INT1中断标志
}
}
else if (temp & (1 << VICIntSel_EINT2)) {
IOPIN1 ^= (1 << P1_18); //取反P1.18
EXTINT = (1 << EINT2); //清除INT2中断标志
}
else if (temp & (1 << VICIntSel_EINT3)) {
IOPIN1 ^= (1 << P1_19); //取反P1.19
EXTINT = (1 << EINT3); //清除INT3中断标志
}
else {//其他干扰源
//再次填入干扰处理代码
}
// VICSoftIntClr = temp;//抗击无效VICSoftInt=XXX的入侵
VICVectAddr = 0;
}
void EINT0IRQ (void) {//IRQ中断函数EINT0IRQ被挂接在VICVectCntl0
if (VICIRQStatus & (1 << VICIntSel_EINT0)) {
IOPIN1 ^= (1 << P1_16); //取反P1.16
}
VICSoftIntClr = (1 << VICIntSel_EINT0);
EXTINT = (1 << EINT0); //清除INT0中断标志
VICVectAddr = 0;
}
void EINT1IRQ (void) {//IRQ中断函数EINT1IRQ被挂接在VICVectCntl1
if (VICIRQStatus & (1 << VICIntSel_EINT1)) {
IOSET1 = (1 << P1_17); //P1.17=1
// while(EXTINT & (1 << EINT1)) {
EXTINT = (1 << EINT1); //清除INT1中断标志
// }
IOCLR1 = (1 << P1_17); //P1.17=0
VICSoftIntClr = (1 << VICIntSel_EINT1);
}
VICVectAddr = 0;
}
void EINT2IRQ (void) {//IRQ中断函数EINT2IRQ被挂接在VICVectCntl2
if (VICIRQStatus & (1 << VICIntSel_EINT2)) {
IOPIN1 ^= (1 << P1_18); //取反P1.18
}
EXTINT = (1 << EINT2); //清除INT2中断标志
// VICSoftIntClr = (1 << VICIntSel_EINT2);
VICVectAddr = 0;
}
void EINT3IRQ (void) {//IRQ中断函数EINT3IRQ被挂接在VICVectCntl3
if (VICIRQStatus & (1 << VICIntSel_EINT3)) {
IOPIN1 ^= (1 << P1_19); //取反P1.19
}
EXTINT = (1 << EINT3); //清除INT3中断标志
// VICSoftIntClr = (1 << VICIntSel_EINT3);
VICVectAddr = 0;
}
int main (void) {
IODIR1 = (1 << P1_23) | (1 << P1_22) | (1 << P1_21) | (1 << P1_20)
|(1 << P1_19) | (1 << P1_18) | (1 << P1_17) | (1 << P1_16);//设置LED输出方式
PINSEL0 |= (P0_14_EINT1 << P0_14_PINSEL) //选择P0.14为INT1外部中断引脚
// | (P0_7_EINT2 << P0_7_PINSEL) //选择P0.7为INT2外部中断引脚
| (P0_15_EINT2 << P0_15_PINSEL); //选择P0.15为INT2外部中断引脚
// | (P0_9_EINT3 << P0_9_PINSEL) //选择P0.9也为INT3外部中断引脚
// | (P0_1_EINT0 << P0_1_PINSEL) //选择P0.1也为INT0外部中断引脚
// | (P0_3_EINT1 << P0_3_PINSEL); //选择P0.3也为INT1外部中断引脚
PINSEL1 |= (P0_16_EINT0 << P0_16_PINSEL) //选择P0.16为INT0外部中断引脚
// | (P0_20_EINT3 << P0_20_PINSEL) //选择P0.20也为INT3外部中断引脚
| (P0_30_EINT3 << P0_30_PINSEL);//选择P0.30也为INT3外部中断引脚(Keil仿真不了)
EXTPOLAR &= ~((1 << EXTPOLAR0) //INT0为低电平有效
| (1 << EXTPOLAR1) //INT1为低电平有效
| (1 << EXTPOLAR2) //INT2为低电平有效
| (1 << EXTPOLAR3));//INT3为低电平有效
// EXTPOLAR |= (1 << EXTPOLAR0); //INT0为高电平有效
EXTMODE |= (1 << EXTMODE0) //设置INT0为边沿触发
| (1 << EXTMODE2) //设置INT2为边沿触发
| (1 << EXTMODE3);//设置INT3为边沿触发
// EXTMODE &= ~(1 << EXTMODE1);//设置INT1为电平触发
VICVectCntl0 = VICIntSel_Enable//使能IRQ中断
| VICIntSel_EINT0;//获取EINT0的IRQ级别
VICVectAddr0 = (long) EINT0IRQ;//取INT0中断服务地址
VICVectCntl1 = VICIntSel_Enable//使能IRQ中断
| VICIntSel_EINT1;//获取EINT1的IRQ级别
VICVectAddr1 = (long)EINT1IRQ;//取INT1中断服务地址
VICVectCntl2 = VICIntSel_Enable//使能IRQ中断
| VICIntSel_EINT2;//获取EINT2的IRQ级别
VICVectAddr2 = (long)EINT2IRQ;//取INT2中断服务地址
VICVectCntl3 = VICIntSel_Enable//使能IRQ中断
| VICIntSel_EINT3;//获取EINT3的IRQ级别
VICVectAddr3 = (long)EINT3IRQ;//取INT3中断服务地址
VICVectCntl4 = VICIntSel_Enable//使能IRQ中断
| VICIntSel_SoftInt31;//获取VICIntSel_SoftInt31的IRQ级别
// VICVectAddr4 = (long)UserDefineIRQ;//取VicInt31中断服务地址
// VICVectCntl0 &= ~VICIntSel_Enable;//放弃EINT0的IRQ级别，获取默认中断级别
// VICVectCntl1 &= ~VICIntSel_Enable;//放弃EINT1的IRQ级别，获取默认中断级别
// VICVectCntl2 &= ~VICIntSel_Enable;//放弃EINT2的IRQ级别，获取默认中断级别
// VICDefVectAddr = (long)EXTintIRQ;//取默认中断服务地址
VICIntSelect = 0;//全部中断为IRQ中断或默认中断
VICIntSelect = (1 << VICIntSel_EINT0); //设置EINT0为FIQ中断
/*
VICIntSelect = (1 << VICIntSel_EINT0) //设置EINT0为FIQ中断
| (1 << VICIntSel_EINT1) //设置EINT1为FIQ中断
| (1 << VICIntSel_EINT2) //设置EINT2为FIQ中断
| (1 << VICIntSel_EINT3);//设置EINT2为FIQ中断
*/
EXTINT = (1 << EINT0) | (1 << EINT1) | (1 << EINT2) | (1 << EINT3); //清除INT中断标志
// VICSoftIntClr = 0xffffffff;//清除所有软中断标志
VICSoftIntClr = (1 << VICIntSel_EINT0) //清除EINT0软中断标志
| (1 << VICIntSel_EINT1) //清除EINT1软中断标志
| (1 << VICIntSel_EINT2) //清除EINT2软中断标志
| (1 << VICIntSel_EINT3);//清除EINT3软中断标志
VICIntEnable = (1 << VICIntSel_EINT0) //使能EINT0中断
| (1 << VICIntSel_EINT1) //使能EINT1中断
| (1 << VICIntSel_EINT2) //使能EINT2中断
| (1 << VICIntSel_EINT3);//使能EINT3中断
VICIntEnable |= (1 << VICIntSel_SoftInt31);//使能VICIntSel_SoftInt31中断
// SetVICProtection(1);//打开特权保护,阻止VICSoftInt软中断
VICSoftInt = (1 << VICIntSel_EINT0);//(VICIntEnable & (1 << VICIntSel_EINT0))使能才能软中断
// SetVICProtection(0);//关闭特权保护,允许VICSoftInt软中断
VICSoftInt = (1 << VICIntSel_EINT1);//(VICIntEnable & (1 << VICIntSel_EINT1))使能才能软中断
// SetVICProtection(1);//打开特权保护,阻止VICSoftInt软中断
VICSoftInt = (1 << VICIntSel_EINT2);//(VICIntEnable & (1 << VICIntSel_EINT2))使能才能软中断
// SetVICProtection(0);//关闭特权保护,允许VICSoftInt软中断
VICSoftInt = (1 << VICIntSel_EINT3);//(VICIntEnable & (1 << VICIntSel_EINT3))使能才能软中断
// SetVICProtection(0);//关闭特权保护,允许VICSoftInt软中断
VICSoftInt = (1 << VICIntSel_SoftInt31);//(VICIntEnable & (1 << VICIntSel_SoftInt31))使能才能软中断
// res = myfunc1 (10, 2); // call SWI functions
// res += myfunc2 (res);
while (1); // endless loop
return 0;
}
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