本帖最后由 zjqlovelyy 于 2014-5-28 20:43 编辑
在程序里面，程序的功能是使得led以1s间隔闪烁，但是实际上这个程序没有进入到定时器的中断里面，调试的时候INTPND和SRCPND相应的位（第10位）已经置位了，INTMSK也清除相应的位了，而且内存中中断向量表timer0的位置也放了中断服务函数的地址。为什么会没有触发中断的？（补充下：我使用的是H-Jtag并口烧写的，到Nor flash中，位于bank0）
- #include "2440addr.h"
- #include "config.h"
- void __irq timer0ISR(void);
- void timer0Init(void);
- void ledInit(void);
- static int ledFlag=1;
- void Main(void)
- {
-
- ledInit();
- timer0Init();
-
- while(1)
- {
- /* if ( (rSRCPND & (1<<10)) == 1)
- {
- ledFlag = !ledFlag;
- rSRCPND = (1<<10);
- }*/
- if (ledFlag)
- {
- rGPBDAT &= ~(1<<5);
- }
- else
- rGPBDAT |= (1<<5);
- }
- }
- void ledInit(void)
- {
- rGPBCON &= ~(3<<10);
- rGPBCON |= (1<<10);
- rGPBDAT &= ~(1<<5);
- }
- void timer0Init(void)
- {
- pISR_TIMER0 = (unsigned int)timer0ISR;
- rSRCPND |= (1<<10);
- rINTPND |= (1<<10);
- rINTMSK &= ~(1<<10);
- rTCFG0 &= ~(0xff);
- rTCFG0 |= 99;
-
- rTCFG1 &= ~(0xf);
- rTCFG1 |= 2;
-
- rTCNTB0 = 62500;
-
- rTCON &= ~(0xf<<0);
- rTCON |= ((1<<0)|(1<<1)|(1<<3));
- rTCON &= ~(1<<1);
-
-
- }
- void __irq timer0ISR(void)
- {
- ledFlag = !ledFlag;
-
- rSRCPND |= (1<<10);
- rINTPND |= (1<<10);
- }
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