嵌入式DSP开发---dm642的中断

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dnux57fds| 实习生

楼主 | 2017-8-13 15:42 | 只看该作者回帖奖励

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DM642, 嵌入式DSP, DSP开发, VECTOR, Global

嵌入式DSP开发---dm642的中断

void fifoint_isr();
extern far void vectors();

void int_init()
{
IRQ_resetAll();
IRQ_setVecs(vectors);
IRQ_nmiEnable();
IRQ_globalEnable();

//
IRQ_reset(IRQ_EVT_EXTINT4);
IRQ_enable(IRQ_EVT_EXTINT4);
*(Uint32*)(0x019c0008) = 1;//中断条件 0上升，1下降
*(unsigned short*)EPLE_TEST = 0X0;
IRQ_clear(IRQ_EVT_EXTINT4);
}

interrupt void fifoint_isr()
{

IRQ_disable(IRQ_EVT_EXTINT4);
//
com_isr232();
//
IRQ_clear(IRQ_EVT_EXTINT4);
IRQ_enable(IRQ_EVT_EXTINT4);
}

//修改vector.asm
.global _vectors
.global _c_int00
.global _vector1
.global _vector2
.global _vector3
.global _fifoint_isr
.global _vector5
.global _vector6
.global _vector7
.global _vector8
.global _vector9
.global _vector10
.global _vector11
.global _vector12
.global _vector13
.global _vector14
.global _vector15

_vectors:
_vector0: VEC_ENTRY _c_int00 ;RESET
_vector1: VEC_ENTRY _vec_dummy  ;NMI
_vector2: VEC_ENTRY _vec_dummy  ;RSVD
_vector3: VEC_ENTRY _vec_dummy
_vector4: VEC_ENTRY _fifoint_isr
_vector5: VEC_ENTRY _vec_dummy
_vector6: VEC_ENTRY _vec_dummy
_vector7: VEC_ENTRY _vec_dummy
_vector8: VEC_ENTRY _vec_dummy
_vector9: VEC_ENTRY _vec_dummy
_vector10:  VEC_ENTRY _vec_dummy
_vector11:  VEC_ENTRY _vec_dummy
_vector12:  VEC_ENTRY _vec_dummy
_vector13:  VEC_ENTRY _vec_dummy
_vector14:  VEC_ENTRY _vec_dummy
_vector15:  VEC_ENTRY _vec_dummy