dspsetup.asm

ti dsp 5402 的BOOT程序。利用此程序实现将代码写入到FLASH 的功能。

;**********************************************************************
;*		 (C) COPYRIGHT TEXAS INSTRUMENTS, INC. 2000 				  *
;*																	  *
;* dspSetup.asm -- Some setup stuff for FlashBurn
;*                 5402 FBTC (target component)
;**********************************************************************
;


;/* Change Log:
; */
;/*
;$Log: dspSetup.asm,v $
;Revision 1.1  2000/10/20 19:56:37  heeschen
;Initial Version
;
;*/

;******************************************************************************
;** DSP Control Register Definitions
;******************************************************************************
SWWSR       		.set (28h)      ;  

FLWAIT_SWWSR        .set (5861h)      ; Wait States for Flash 
EXTWAIT_SWWSR       .set (0209h)      ; Wait States for Ext Mem and IO 
INIT_SWCR           .set (0001h)      ; Wait State Multipler bit set for x2


    .global _dspInitEx
    .global _dspInitFl

	.text
_dspInitEx:
        stm     #INIT_SWCR, 2Bh        ; Set Wait State Multipler Bit
        stm     #EXTWAIT_SWWSR, SWWSR  ; Set I/O and Ext memory wait states
        ret

_dspInitFl:
        stm     #INIT_SWCR, 2Bh        ; Set Wait State Multipler Bit
        stm     #FLWAIT_SWWSR, SWWSR  ; Set I/O and Ext memory wait states
        ret
        .end