第七帖 自动生产的工程相关文件讲解
时间：10-02
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我们建立工程之后，HEW会自动生成几个文件，此文讲解一下这几个文件，请注意注释
1、ncrt0.a30
此文件时系统生成的启动文件，单片机启动后的首先运行的代码在此文件中。
;********************************************************************
; C Compiler for R8C/Tiny, M16C/60,30,20,10
; Copyright(C) 1999(2000-2006). Renesas Technology Corp.
; and Renesas Solutions Corp., All rights reserved.
;
; ncrt0.a30 : Startup Program for R8C/Tiny
;
; $Date: 2006/11/22 04:13:59 $
; $Revision: 1.1.4.1 $
;********************************************************************
;---------------------------------------------------------------------
; include files
;---------------------------------------------------------------------
.list OFF
.include nc_define.inc 【启动文件自动包含另外两个自动生成的头文件】
.include sect30.inc
.list ON
;===================================================
; Interrupt section start
;---------------------------------------------------------------------
.insf start,S,0
.glb start
.section interrupt
start:
;---------------------------------------------------------------------
; after reset,this program will start 【单片机启动，程序从此处开始执行】
【如果用户上电就要IO口动作，请在此处添加汇编代码】
;---------------------------------------------------------------------
ldc #istack_top,isp ;set istack pointer 【设置部分指针和CPU模式】
mov.b #02h,0ah
mov.b #00h,04h ;set processer mode
mov.b #00h,0ah
.if __STACKSIZE__ ！= 0
ldc #0080h,flg
ldc #stack_top,sp ;set stack pointer
.else
ldc #0000h,flg
.endif
ldc #data_SE_top,sb ;set sb register
ldintb #__VECTOR_ADR__
;===================================================
; NEAR area initialize. 【关于小于64K区域的RAM的设置】
;---------------------------------------------------------------------
; bss zero clear
;---------------------------------------------------------------------
N_BZERO bss_SE_top,bss_SE
N_BZERO bss_SO_top,bss_SO
N_BZERO bss_NE_top,bss_NE
N_BZERO bss_NO_top,bss_NO
;---------------------------------------------------------------------
; initialize data section
;---------------------------------------------------------------------
N_BCOPY data_SEI_top,data_SE_top,data_SE
N_BCOPY data_SOI_top,data_SO_top,data_SO
N_BCOPY data_NEI_top,data_NE_top,data_NE
N_BCOPY data_NOI_top,data_NO_top,data_NO
;===================================================
; heap area initialize 【初始化堆】
;---------------------------------------------------------------------
.if __HEAPSIZE__ ！= 0
.glb __mnext
.glb __msize
mov.w #(heap_top&0FFFFH), __mnext
mov.w #(__HEAPSIZE__&0FFFFH), __msize
.endif
;===================================================
; Initialize standard I/O 【初始化标准IO】
;---------------------------------------------------------------------
.if __STANDARD_IO__ == 1
.glb __init
.call __init,G
jsr.a __init
.endif
;===================================================
; Call main() function 【进入用户主程序】
;---------------------------------------------------------------------
ldc #0h,fb ; for debuger
.glb _main
jsr.a _main
;===================================================
; exit() function 【退出程序】
;---------------------------------------------------------------------
.glb _exit
.glb $exit
_exit: ; End program
$exit:
jmp _exit
.einsf
;===================================================
; dummy interrupt function 【虚中断】
;---------------------------------------------------------------------
.glb dummy_int
dummy_int:
reit
.end
;********************************************************************
; C Compiler for R8C/Tiny, M16C/60,30,20,10
; Copyright(C) 1999(2000-2006). Renesas Technology Corp.
; and Renesas Solutions Corp., All rights reserved.
;********************************************************************
2、nc_define.inc
关于部分RAM和ROM的地址分配的头文件
;------------------------------------------------------------------------
; |
; FILE :nc_define.inc |
; DATE :Mon, Sep 28, 2009 |
; DESCRIPTION :interrupt program. |
; CPU GROUP :1B |
; |
; This file is generated by Renesas Project Generator (Ver.4.17). |
; |
;------------------------------------------------------------------------
; Macro Symbol definition
__STANDARD_IO__ .equ 0 ; STANDARD I/O flag definition 【标准IO标志定义】
__HEAPSIZE__ .equ 080H ; HEEP SIZE definition【堆定义】
__STACKSIZE__ .equ 080H ; STACK SIZE definition【栈定义】
__ISTACKSIZE__ .equ 080H ; INTERRUPT STACK SIZE definition【中断堆栈大小定义】
__VECTOR_ADR__ .equ 0fedcH ; INTERRUPT VECTOR ADDRESS definition【中断向量起始地址】
__ROM_TOPADR__ .equ 0c900H ; ROM TOP ADDRESS definition 【用户程序开始地址】
注意：Fousb 仿真时用户程序开始地址必须 大于 0c900H
3、sect30.inc
section 定义
;********************************************************************
; C Compiler for R8C/Tiny, M16C/60,30,20,10
; Copyright(C) 1999(2000-2006). Renesas Technology Corp.
; and Renesas Solutions Corp., All rights reserved.
;
; sect30.inc : section definition for R8C/Tiny
;
; $Date: 2007/11/29 09:02:11 $
; $Revision: 1.1.14.1 $
;********************************************************************
;===================================================
;
; Arrangement of section
;
;---------------------------------------------------------------------
; Near RAM data area 【小于64K的RAM地址空间设置】
;---------------------------------------------------------------------
; SBDATA area
.section data_SE,DATA
.org 400H
data_SE_top:
.section bss_SE,DATA,ALIGN
bss_SE_top:
.section data_SO,DATA
data_SO_top:
.section bss_SO,DATA
bss_SO_top:
; SBDATA area definition
.glb __SB__
__SB__ .equ data_SE_top
; near RAM area
.section data_NE,DATA,ALIGN
data_NE_top:
.section bss_NE,DATA,ALIGN
bss_NE_top:
.section data_NO,DATA
data_NO_top:
.section bss_NO,DATA
bss_NO_top:
;---------------------------------------------------------------------
; Stack area 【栈地址设置】
;---------------------------------------------------------------------
.section istack,DATA,ALIGN
.blkb __ISTACKSIZE__
istack_top:
.if __STACKSIZE__ ！= 0
.section stack,DATA,ALIGN
.blkb __STACKSIZE__
stack_top:
.endif
;---------------------------------------------------------------------
; heap section【堆地址设置】
;---------------------------------------------------------------------
.if __HEAPSIZE__ ！= 0
.section heap,DATA
heap_top:
.blkb __HEAPSIZE__
.endif
;---------------------------------------------------------------------
; Near ROM data area 【小于64K的ROM地址设置】
;---------------------------------------------------------------------
.section rom_NE,ROMDATA
.org __ROM_TOPADR__
rom_NE_top:
.section rom_NO,ROMDATA
rom_NO_top:
;---------------------------------------------------------------------
; Initial data of 'data' section 【数据区】
;---------------------------------------------------------------------
.section data_SEI,ROMDATA,ALIGN
data_SEI_top:
.section data_SOI,ROMDATA
data_SOI_top:
.section data_NEI,ROMDATA,ALIGN
data_NEI_top:
.section data_NOI,ROMDATA
data_NOI_top:
;---------------------------------------------------------------------
; Switch Table Section
;---------------------------------------------------------------------
; .section switch_table,ROMDATA
;switch_table_top:
;---------------------------------------------------------------------
; code area【代码区】
;---------------------------------------------------------------------
.section program,CODE,ALIGN
.section interrupt,CODE,ALIGN
;---------------------------------------------------------------------
; variable vector section
;---------------------------------------------------------------------
.section vector,ROMDATA
.org __VECTOR_ADR__
.if 0 【注意这里，如果有中断程序，这里一定要改成1】
.lword dummy_int ; vector 0
.lword dummy_int ; vector 1
.lword dummy_int ; vector 2
.lword dummy_int ; vector 3
.lword dummy_int ; vector 4
.lword dummy_int ; vector 5
.lword dummy_int ; vector 6
.lword dummy_int ; vector 7
.lword dummy_int ; vector 8
.lword dummy_int ; vector 9
.lword dummy_int ; vector 10
.lword dummy_int ; vector 11 【这些是中断向量】
.lword dummy_int ; vector 12
.lword dummy_int ; vector 13
.lword dummy_int ; vector 14
.lword dummy_int ; vector 15
.lword dummy_int ; vector 16
.lword dummy_int ; vector 17
.lword dummy_int ; vector 18
.lword dummy_int ; vector 19
.lword dummy_int ; vector 20
.lword dummy_int ; vector 21
.lword dummy_int ; vector 22
.lword dummy_int ; vector 23
.lword dummy_int ; vector 24
.lword dummy_int ; vector 25
.lword dummy_int ; vector 26
.lword dummy_int ; vector 27
.lword dummy_int ; vector 28
.lword dummy_int ; vector 29
.lword dummy_int ; vector 30
.lword dummy_int ; vector 31
.lword dummy_int ; vector 32
.lword dummy_int ; vector 33
.lword dummy_int ; vector 34
.lword dummy_int ; vector 35
.lword dummy_int ; vector 36
.lword dummy_int ; vector 37
.lword dummy_int ; vector 38
.lword dummy_int ; vector 39
.lword dummy_int ; vector 40
.lword dummy_int ; vector 41
.lword dummy_int ; vector 42
.lword dummy_int ; vector 43
.lword dummy_int ; vector 44
.lword dummy_int ; vector 45
.lword dummy_int ; vector 46
.lword dummy_int ; vector 47
.lword dummy_int ; vector 48
.lword dummy_int ; vector 49
.lword dummy_int ; vector 50
.lword dummy_int ; vector 51
.lword dummy_int ; vector 52
.lword dummy_int ; vector 53
.lword dummy_int ; vector 54
.lword dummy_int ; vector 55
.lword dummy_int ; vector 56
.lword dummy_int ; vector 57
.lword dummy_int ; vector 58
.lword dummy_int ; vector 59
.lword dummy_int ; vector 60
.lword dummy_int ; vector 61
.lword dummy_int ; vector 62
.lword dummy_int ; vector 63
.endif
;---------------------------------------------------------------------
; fixed vector section【固定向量地址】
;---------------------------------------------------------------------
.section fvector,ROMDATA
.org 0ffdcH
UDI:
.lword dummy_int
OVER_FLOW:
.lword dummy_int
BRKI:
.lword dummy_int
ADDRESS_MATCH:
.lword dummy_int
SINGLE_STEP:
.lword dummy_int
WDT:
.lword dummy_int
; reserved
.lword dummy_int
; reserved
.lword dummy_int
RESET:
.lword start
;===================================================
; ID code & Option function select register
;---------------------------------------------------------------------
; ID code check function
.id "#FFFFFFFFFFFFFF"【用户加密的密码，不要忘记了，忘记密码，芯片就报废了】
; option function select register
.ofsreg 0FFH
;---------------------------------------------------------------------
; far ROM data area
;---------------------------------------------------------------------
;
; .section rom_FE,ROMDATA
; .org 10000H
;
; .section rom_FO,ROMDATA
;
; .section data_FEI,ROMDATA,ALIGN
;data_FEI_top:
;
; .section data_FOI,ROMDATA
;data_FOI_top:
;
;====================================================
; Initialize Macro declaration
;---------------------------------------------------------------------
N_BZERO .macro TOP_ ,SECT_
mov.b #00H, R0L
mov.w #(TOP_ & 0FFFFH), A1
mov.w #sizeof SECT_ , R3
sstr.b
.endm
N_BCOPY .macro FROM_,TO_,SECT_
mov.w #(FROM_ & 0FFFFH),A0
mov.b #(FROM_ >>16),R1H
mov.w #TO_ ,A1
mov.w #sizeof SECT_ , R3
smovf.b
.endm
;********************************************************************
; C Compiler for R8C/Tiny, M16C/60,30,20,10
; Copyright(C) 1999(2000-2006). Renesas Technology Corp.
; and Renesas Solutions Corp., All rights reserved.
;********************************************************************