vect.asm

VC5402的MCBSP作为通用串口的程序

      		 .sect ".vectors"
      		 .ref main_start
        	 .ref receive    
k_stack_size .set 200
k_stack	     .usect "stack_section",k_stack_size     	
system_stack .set k_stack+k_stack_size
             .align  0x80    	; must be aligned on page boundary
RESET:                          ; reset vector复位矢量
        BD main_start           ; branch to 程序开始 c 入口
        STM #system_stack,SP    ; stack size of 200
        NOP
        NOP
        NOP
NMI:    RETE                    ; enable interrupts and return from one
        NOP
        NOP
        NOP                        
SINT17 .space 4*16
SINT18 .space 4*16   ;保留空间的大小
SINT19 .space 4*16
SINT20 .space 4*16 
SINT21 .space 4*16
SINT22 .space 4*16
SINT23 .space 4*16
SINT24 .space 4*16
SINT25 .space 4*16
SINT26 .space 4*16
SINT27 .space 4*16
SINT28 .space 4*16
SINT29 .space 4*16
SINT30 .space 4*16
INT0:   RETE   ;使能中断和返回 外部用户中断
                NOP
                NOP
                NOP
INT1:   RETE   ;外部用户中断
                NOP 
                NOP
                NOP
INT2:   RETE   ;外部用户中断
                NOP
                NOP
                NOP
TINT0:  RETE   ;定时器中断0
                NOP
                NOP
                NOP
BRINT0:  RETE              ;McBSP #0 接受中断
                NOP
                NOP
                NOP
BXINT0:  RETE              ;McBSP#0 发送中断
                NOP
                NOP
                NOP
DMAC0:  RETE               ;DMA通道0中断
                NOP
                NOP
                NOP
TINT1:  RETE               ;定时器中断1和DMA通道1中断
                NOP
                NOP
                NOP
INT3:   RETE                  ;外部中断
                NOP
                NOP
                NOP
HPINT:	RETE
				NOP
				NOP
				NOP
BRINT1:	B   receive          	;McBSP #1 接受中断      
				NOP
				NOP
BXINT1: RETE;	B   transmit	        ;McBSP #1 发送中断  
				NOP
				NOP
                NOP
DMAC4:  RETE
				NOP
				NOP
				NOP
DMAC5:  RETE
				NOP
				NOP
				NOP
                .end