2812通用定时器进不了中断，为什么？

只看该作者 · 2012-8-27 14:26

.include"DSP28_REG.asm"
  .def T1PINT_ISR
  .def T2PINT_ISR
  .def T3PINT_ISR
  .def T4PINT_ISR


  .global start
start:
LC InitSysCtrl
DINT
         AND IER,#0x0000
AND IFR,#0x0000
LC InitPieCtrl
LC InitPieVectTable
LC Init_eva_timer1
LC Init_eva_timer2
LC Init_eva_timer3
LC Init_eva_timer4

         MOVL XAR0,#PIEIER2
OR *XAR0,#0x0008
MOVL XAR0,#PIEIER3
OR *XAR0,#0x0001
MOVL XAR0,#PIEIER4
OR *XAR0,#0x0008
MOVL XAR0,#PIEIER5
OR *XAR0,#0x0001

OR  IER,#0x001E
         EINT
CLRC DBGM
mainloop:
         NOP
NOP
NOP
NOP
LB  mainloop

;***************************************
InitSysCtrl:
EALLOW
;????
MOVL  XAR0,#WDCR
OR *XAR0,#0x0068
         MOVL  XAR0,#PLLCR
MOV *XAR0,#0x000A
         LC DELAY_10mS
MOVL  XAR0,#HISPCP
MOV *XAR0,#0x0001
MOVL  XAR0,#LOSPCP
MOV *XAR0,#0x0002
MOVL  XAR0,#PCLKCR
OR *XAR0,#0x0008
EDIS
LRET

;*****************************************
InitPieCtrl:
         MOVL XAR0,#PIECTRL
OR *XAR0,#0x0000
MOVL XAR0,#PIEIER1
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER2
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER3
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER4
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER5
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER6
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER7
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER8
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER9
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER10
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER11
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIER12
MOV  *XAR0,#0x0000
   MOVL XAR0,#PIEIFR1
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR2
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR3
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR4
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR5
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR6
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR7
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR8
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR9
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR10
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR11
MOV  *XAR0,#0x0000
MOVL XAR0,#PIEIFR12
MOV  *XAR0,#0x0000
MOVL XAR0,#PIECTRL
OR *XAR0,#0x0001
         MOVL XAR0,#PIEACK
MOV  *XAR0,#0xFFFF
LRET
;********************************************
InitPieVectTable:
         NOP
EALLOW
      NOP
      MOVL XAR0,#T1PINT_ISR
MOVL XAR1,#0x0D56
MOVL *XAR1,XAR0
MOVL XAR0,#T2PINT_ISR
MOVL XAR1,#0x0D60
MOVL *XAR1,XAR0
MOVL XAR0,#T3PINT_ISR
MOVL XAR1,#0x0D76
MOVL *XAR1,XAR0
MOVL XAR0,#T4PINT_ISR
MOVL XAR1,#0x0D80
MOVL *XAR1,XAR0
      NOP
EDIS
NOP
         LRET
;*****************Timer1/2/3/4初始化****************************
Init_eva_timer1:
   MOVL    XAR0,#GPTCONA
MOV    *XAR0,#0x0000
         MOVL    XAR0,#T1PR
MOV    *XAR0,#0x0200
MOVL    XAR0,#T1CMPR
MOV    *XAR0,#0x0000
MOVL    XAR0,#EVAIMRA
OR    *XAR0,#0x0080
MOVL    XAR0,#EVAIFRA
OR    *XAR0,#0x0080
MOVL    XAR0,#T1CNT
MOV    *XAR0,#0x0000
MOVL    XAR0,#T1CON
   MOV    *XAR0,#0x1742
MOVL    XAR0,#GPTCONA
OR    *XAR0,#0x0100
         LRET
Init_eva_timer2:
   MOVL    XAR0,#GPTCONA
MOV    *XAR0,#0x0000
         MOVL    XAR0,#T2PR
MOV    *XAR0,#0x0400
MOVL    XAR0,#T2CMPR
MOV    *XAR0,#0x0000
MOVL    XAR0,#EVAIMRB
OR    *XAR0,#0x0001
MOVL    XAR0,#EVAIFRB
OR    *XAR0,#0x0001
MOVL    XAR0,#T2CNT
MOV    *XAR0,#0x0000
MOVL    XAR0,#T2CON
   MOV    *XAR0,#0x1742
MOVL    XAR0,#GPTCONA
OR    *XAR0,#0x0400
         LRET
Init_eva_timer3:
   MOVL    XAR0,#GPTCONB
MOV    *XAR0,#0x0000
         MOVL    XAR0,#T3PR
MOV    *XAR0,#0x0800
MOVL    XAR0,#T3CMPR
MOV    *XAR0,#0x0000
MOVL    XAR0,#EVBIMRA
OR    *XAR0,#0x0080
MOVL    XAR0,#EVBIFRA
OR    *XAR0,#0x0080
MOVL    XAR0,#T3CNT
MOV    *XAR0,#0x0000
MOVL    XAR0,#T3CON
   MOV    *XAR0,#0x1742
MOVL    XAR0,#GPTCONB
OR    *XAR0,#0x0100
         LRET
Init_eva_timer4:
   MOVL    XAR0,#GPTCONB
MOV    *XAR0,#0x0000
         MOVL    XAR0,#T4PR
MOV    *XAR0,#0x1000
MOVL    XAR0,#T4CMPR
MOV    *XAR0,#0x0000
MOVL    XAR0,#EVBIMRB
OR    *XAR0,#0x0001
MOVL    XAR0,#EVBIFRB
OR    *XAR0,#0x0001
MOVL    XAR0,#T4CNT
MOV    *XAR0,#0x0000
MOVL    XAR0,#T4CON
   MOV    *XAR0,#0x1742
MOVL    XAR0,#GPTCONB
OR    *XAR0,#0x0400
         LRET
;***********************************************************
DELAY_10mS: NOP
MOV  AR0,#60000 ;10ms/7.41ns=1499250=60000*22
$0: RPT    #17    ;1
||  NOP    ;1*3
BANZ $0,AR0-- ;4
NOP
LRET
;************************************************************
T1PINT_ISR:
         MOVL    XAR0,#EVAIMRA
         OR    *XAR0,#0x0080
         MOVL    XAR0,#EVAIFRA
OR    *XAR0,#0x0080
         MOVL    XAR0,#PIEACK
         OR    *XAR0,#0x0002
         IRET
T2PINT_ISR:
MOVL    XAR0,#EVAIMRB
OR    *XAR0,#0x0001
MOVL    XAR0,#EVAIFRB
OR    *XAR0,#0x0001
MOVL    XAR0,#PIEACK
         OR    *XAR0,#0x0004
         IRET
T3PINT_ISR:
MOVL    XAR0,#EVBIFRA
OR    *XAR0,#0x0080
         MOVL    XAR0,#PIEACK
         OR    *XAR0,#0x0008
         IRET
T4PINT_ISR:
MOVL    XAR0,#EVBIFRB
OR    *XAR0,#0x0001
MOVL    XAR0,#PIEACK
         OR    *XAR0,#0x0010
         IRET

      .end

2812通用定时器进不了中断，为什么？

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