求教UCOSII在44B0上的问题

bluecat525

UCOSII移植到44B0上,还比较顺利,有现成的代码

现在在调试2个中断,一个是TIMER0的节拍中断,一个是TIMER3的中断

结果出现问题,当两个中断一起跑的时候,运行一段时间就卡死了,可能是出现了异常中断

屏蔽掉任何一个中断的时候都跑的很好

高手们,来指点下~~

bluecat525

这是汇编上的TIMER3的中断子程序

BIT_TIMER0 EQU  (0x1<<13)
BIT_GLOBAL  EQU     (0x1<<26)
I_ISPC  EQU  0x1e00024
INTMSK  EQU  0x1e0000c
BIT_TIMER3 EQU     (0x1<<10);


    AREA |C$$code|, CODE, READONLY

IMPORT need_to_swap_context
IMPORT Timer3Int
IMPORT IrqStart
IMPORT IrqFinish
IMPORT _CON_SW
IMPORT _NOT_CON_SW
   
    EXPORT Timer3_ISR
   
Timer3_ISR
STMDB    sp!,{r0-r11,lr}      ;=push  lr, r0-r11-->sp

;interrupt disable(not nessary)
mrs  r0, CPSR            ; r0=CPSR
orr  r0, r0, #0x80  ; and set IRQ disable flag
msr  CPSR_cxsf, R0       ; CPSR_cxsf=R0

;End of interrupt
;(Clear pending bit of INTPEND that don't accessed it.)
;rI_ISPC= BIT_TIMER3;

LDR r0, =I_ISPC
LDR r1, =BIT_TIMER3
STR r1, [r0]

LDR R0, =INTMSK
LDR R2, [R0]
LDR R1, =BIT_TIMER3
ORR R2, R1, R2
LDR R1, =BIT_TIMER0
ORR R2, R1, R2
STR R2, [R0]

BL IrqStart

BL Timer3Int

BL IrqFinish

LDR  r0, =need_to_swap_context
LDR  r2, [r0]   ;ldr: memory to register,r2=need_to_swap_context
CMP  r2, #1
LDREQ pc, =_CON_SW;if equal,then switch context
LDR     pc, =_NOT_CON_SW
   
END

bluecat525

这是主程序

#include "bsp\cpu\def.h"
#include "bsp\uart\uart.h"
#include "bsp\cpu\44blib.h"
#include "bspinit.h"
#include "bsp\cpu\44breg.h"
#include "ucos-ii\includes.h"

int isrtxmsg=1;
int n=0;
OS_EVENT        *ISRTaskMbox;

extern void Timer3_ISR(void);

#ifdef SEMIHOSTED
#define STACKSIZE (64+SEMIHOSTED_STACK_NEEDS)
#else
#define STACKSIZE 256
#endif

OS_STK Main_Stack[STACKSIZE]={0,};
void Main_Task(void *ld);
#define Main_PRIO 10

OS_STK Task1_Stack[STACKSIZE]={0,};
void Task1_Task(void *ld);
#define Task1_PRIO 12

OS_STK Task2_Stack[STACKSIZE]={0,};
void Task2_Task(void *ld);
#define Task2_PRIO 14

OS_STK Task3_Stack[STACKSIZE]={0,};
void Task3_Task(void *ld);
#define Task3_PRIO 16

void Task1_Task(void *ld)
{
while(1)
{
  OS_ENTER_CRITICAL();
  Uart_Printf("1");
  OS_EXIT_CRITICAL();
  OSTimeDly(500);
}
}

void Task2_Task(void *ld)
{
while(1)
{
  OS_ENTER_CRITICAL();
  Uart_Printf("2");
  OS_EXIT_CRITICAL();
  OSTimeDly(500);
}
}

void Task3_Task(void *ld)
{
while(1)
{
  OS_ENTER_CRITICAL();
  Uart_Printf("3");
  OS_EXIT_CRITICAL();
  OSTimeDly(500);
}
}

void Timer3Int(void)
{
isrtxmsg=1;
OSMboxPost(ISRTaskMbox,(void *)&isrtxmsg);
Uart_Printf("!");
}

void _Delay(void)
{
int j,k;
for(j=0;j<255;j++)
{
  for(k=0;k<255;k++);
}
}

void Main_Task(void *ld)
{
unsigned char err;
int *rxmsg=0;

ARMTargetStart();
rINTMOD=0x0;
rINTCON=0x5;
rINTMSK&=~(BIT_TIMER3);
pISR_TIMER3=(int)Timer3_ISR;
rTCFG0=(0xf<<8)+(0x4);
rTCFG1=(0x04<<12)+(0x3);
rTCNTB3=0xfff;
rTCON=(0x2<<16)+(0x2);
rTCON=(0x9<<16)+(0x9);
ISRTaskMbox=OSMboxCreate((void *)0);
OSTaskCreate(Task1_Task, (void *) 0, (OS_STK *)&Task1_Stack[STACKSIZE-1], Task1_PRIO);
OSTaskCreate(Task2_Task, (void *) 0, (OS_STK *)&Task2_Stack[STACKSIZE-1], Task2_PRIO);
OSTaskCreate(Task3_Task, (void *) 0, (OS_STK *)&Task3_Stack[STACKSIZE-1], Task3_PRIO);
while(1)
{
  rxmsg=(int *)OSMboxPend(ISRTaskMbox,0,&err);
  if(*rxmsg==1)
  {
   rINTMSK&=~(BIT_TIMER0);
   rINTMSK|=BIT_TIMER3;
   OS_ENTER_CRITICAL();
   uHALr_printf("%d\n\r",n++);
   OS_EXIT_CRITICAL();
   rI_ISPC|=BIT_TIMER3;
   rINTMSK&=~(BIT_TIMER3);
   *rxmsg=0;
  }
  //OSTimeDly(500);
}
}

int Main(void)
{
Bsp_Init();
ARMTargetInit();
OSInit();
OSTaskCreate(Main_Task,(void *)0,(OS_STK *)&Main_Stack[STACKSIZE-1],Main_PRIO);
OSStart();
return 0;
}
/*************************************************************************/

bluecat525

没有人在??

bluecat525

高手出来冒泡~~~

bluecat525

困扰了好久了,知道的说个话啊

bluecat525

顶一下