codestartbranch.asm

DSP2812的直流斩波调速程序

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* CodeStartBranch.asm
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* File: CodeStartBranch.asm
* Devices: TMS320F2812, TMS320F2811, TMS320F2810
* Author: David M. Alter, Texas Instruments Inc.
* History: 09/08/03 - original (D. Alter)
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WD_DISABLE .set 1 ;set to 1 to disable WD, else set to 0
  .ref _c_int00
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* Function: codestart section
* Description: Branch to code starting point
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  .sect "codestart"
  .if WD_DISABLE == 1
   LB wd_disable ;Branch to watchdog disable code
   .else
   LB _c_int00 ;Branch to start of boot.asm in RTS library
  .endif
  ;end codestart section
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* Function: wd_disable
* Description: Disables the watchdog timer
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  .if WD_DISABLE == 1
  .text
wd_disable:
   EALLOW ;Enable EALLOW protected register access
   MOVZ DP, #7029h>>6 ;Set data page for WDCR register
   MOV @7029h, #0068h ;Set WDDIS bit in WDCR to disable WD
   EDIS ;Disable EALLOW protected register access
   LB _c_int00 ;Branch to start of boot.asm in RTS library
   .endif
;end wd_disable
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   .end ; end of file CodeStartBranch.asm