flash.asm

dsp5416 bootload所需的flash烧写程序及所需的所有可执行文件

* write program to FLASH
	

	.include	"mmreg.asm"
	.include 	"vectors.asm"

	.ref	boot
	.bss	count,1
	.bss	tmph,1
	.bss    tmpl,1
	
sdpad13	.set	5555h
sdpad2	.set	2aaah
length	.set	7000	               ;length of program
midad	.set	2000h


	
	.global	write,loop
	
	       .text

start:	STM	 #0114FH,CLKMD	
	    STM	 #3500h,sp
	    ssbx xf
	    STM	 #63h,PRD
	    STM	 #3efh,TCR		
	    STM	 #0,BSCR				
        STM  #0a0H,PMST    		;OVLY=1&MP/MC=0
        STM	 #0,IMR
        RSBX INTM            	;Enable all interrupt
        STM	 #06c0H,SWWSR
        STM	 #0,SWCR
        
        RSBX cpl
        stm	 #280h,ar3
        stm	 #4000h,ar2
	    stm	 #tmph,ar4
        stm	 #tmpl,ar5
        
        LD   #count,DP
        LD 	 *ar3+,A
        STL	 A,tmpl
        SFTL A,-8
        stl  a,tmph
        
        ld	 #170,DP
	    st	 #0aah,55h		;write data
	    rpt	 #300
	    nop
	    ld	 #341,DP
	    st	 #55h,02ah
	    rpt	 #300
	    nop
	    ld	 #170,DP
	    st	 #0a0h,55h	
	    rpt	 #200
	    nop
        nop
        nop
	    ld	 #count,DP
	    mvdk tmph,0fffeh
	    rpt	 #3000
	    nop
	      
	    ld	 #170,DP
	    st	 #0aah,55h		;write data
	    rpt	 #300
	    nop
	    ld	 #341,DP
	    st	 #55h,02ah
	    rpt	 #300
	    nop
	    ld	 #170,DP
	    st	 #0a0h,55h	
	    rpt	 #200
	    nop
        nop
        nop
        ld	 #count,DP
	    mvdk tmpl,0ffffh
	    rpt	 #3000
	    nop
	   
	
W_file	
        stm	#length-2,BRC
	    rptb	endwr
	    rsbx	xf
        LD   #count,DP
        LD 	 *ar3+,A
        STL	 A,tmpl
        SFTL A,-8
        stl  a,tmph
	
	    ld	#170,DP
	    st	#0aah,55h		;write data
	    rpt	#300
	    nop
	    ld	#341,DP
	    st	#55h,02ah
	    rpt	#300
	    nop
	    ld	#170,DP
	    st	#0a0h,55h	
	    rpt	#200
	    nop
        nop
        nop
	    ld	 #count,DP
	    mvdd *ar4,*ar2+
	    rpt	 #3000
	    nop  
	
	    ld	#170,DP
	    st	#0aah,55h		;write data
	    rpt	#300
	    nop
	    ld	#341,DP
	    st	#55h,02ah
	    rpt	#300
	    nop
	    ld	#170,DP
	    st	#0a0h,55h	
	    rpt	#200
	    nop
        nop
        nop
	    mvdd *ar5,*ar2+
	    rpt	 #3000
	    nop  
	    ssbx xf
	    nop
	    nop
	    nop
	    nop
endwr   nop



loop    nop
        nop
        b loop
        
write   nop
        nop
	    rete
	   .end