[共享资料]看门狗X5045的中文资料及本人实用程序

滴滴维修

本人在最初运用X5045时不是WDT根本就没有启动、就是数据读不出、写不入，参考了很多资料
       
) [0 w1 f3 L$ S# [+ P, K# Z现在把本人的经验传给初学的同仁，希望能让你们少走弯路：
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$ a: i! n" Q( w& v# O/ m+ e: L$ v  k5 [以下为力源公司整理的X5045的中文资料：
       
  


; |9 e& x1 `$ R) n, f 786fdaa1.rar (497.31 KB, 下载次数: 0)

2009-11-4 20:53 上传

点击文件名下载附件
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, P% Y) y: V, Q0 R% E以下为本人成功使用的操作X5045的程序：
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1.主程序中初始化看门狗只须调用外部程序 WrsrDog();//00h-->1.4S，20h-->200ms,10h-->600ms,30h-->看门狗禁能。其中入口参数为空，默认为1.4S,如果你觉得太长可以修改附带的C程序,再汇编一下就可以了2.在需要读写X5045的程序前加上以下两行
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7 d2 l, C: Y: vextern unsigned char ReadDogByte(unsigned char); //入口参数为读出地址extern void WriteDogByte(unsigned char,unsigned char); //入口参数1为写入地址,2为写入数据(8bits)3.在工程中创建文件名为WD5045.A51文件，拷入以下内容:
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OBJECTEXTEND SRC(.\WD5045.SRC)
       
$NOMOD51
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NAME WD5045ADIN BIT 0B0H.7SCL BIT 0B0H.5DOUT BIT 0B0H.4WDCS BIT 0B0H.3
       
& A* ?8 J8 ?, O% N0 k$ A2 {?PR?Delay10ms?WD5045 SEGMENT CODE INBLOCK ?PR?_WriteSPI?WD5045 SEGMENT CODE INBLOCK ?PR?ReadSPI?WD5045 SEGMENT CODE INBLOCK ?PR?WrenDog?WD5045 SEGMENT CODE INBLOCK ?PR?WrsrDog?WD5045 SEGMENT CODE INBLOCK ?PR?_ReadDogByte?WD5045 SEGMENT CODE INBLOCK ?PR?_WriteDogByte?WD5045 SEGMENT CODE INBLOCK PUBLIC _WriteDogByte PUBLIC _ReadDogByte PUBLIC WrsrDog PUBLIC WrenDog PUBLIC ReadSPI PUBLIC _WriteSPI PUBLIC Delay10ms
       
RSEG ?PR?Delay10ms?WD5045Delay10ms:
       
$ w. s: \( K; d+ V, I; 延时约10ms，本人实际用11.0592MHz晶振 MOV R1,#23LOOP0: MOV R0,#198LOOP1: DJNZ R0,LOOP1 DJNZ R1,LOOP0
       
MOV R1,#1LOOP2: MOV R0,#17LOOP3: DJNZ R0,LOOP3 DJNZ R1,LOOP2
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; ;1+(198*2+2+1)*23=9178; ;1+1+(17*2+2+1)*1=39 共9217*1.085=10ms
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RET ; END OF Delay10ms
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; //向SPI串口写入1字节数据; void WriteSPI(unsigned char da)
       
RSEG ?PR?_WriteSPI?WD5045_WriteSPI: USING 0 ; SOURCE LINE # 39;---- Variable 'da?140' assigned to Register 'R7' ----; { ; SOURCE LINE # 40; unsigned char data i;; for(i=0;i<8;i++) ; SOURCE LINE # 42;---- Variable 'i?141' assigned to Register 'R6' ---- MOV R6,#08H MOV A,R7?C0002: RLC A MOV ADIN,C
       
CLR SCL SETB SCL
       
DJNZ R6,?C0002?C0005: RET ; END OF _WriteSPI
       
% S# U3 l0 X/ T8 i; B; ; unsigned char ReadSPI(void)
       
) q9 e4 c5 L9 p/ J1 k. o7 W+ V RSEG ?PR?ReadSPI?WD5045ReadSPI: USING 0 ; SOURCE LINE # 51;---- Variable 'TempSPI?243' assigned to Register 'R7' ----; { ; SOURCE LINE # 52; unsigned char data i;; unsigned char data TempSPI;; bit j;; MOV R6,#08H?C0006: SETB SCL CLR SCL
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3 |$ A/ t6 j5 o% L9 S. C4 d& S# M$ {2 X MOV C,DOUT RLC A
       
DJNZ R6,?C0006 MOV R7,A
       
?C0010: RET ; END OF ReadSPI
       
; B. I- Y( D* J) X3 o( ^( m1 G7 p; ; //看门狗写使能; void WrenDog(void)
       
RSEG ?PR?WrenDog?WD5045WrenDog: USING 0
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! A# t) ?  Y2 W9 F CLR SCL CLR WDCS
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MOV R7,#06H ACALL _WriteSPI
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5 O8 S! f2 n+ e1 X2 Y$ O CLR SCL SETB WDCS
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2 Y8 y5 e3 N4 R RET ; END OF WrenDog
       
; /*; //读看门狗状态; unsigned char RdsrDog(void) ; {; unsigned char TempReg;; SCL=0;; WDCS=0;; WriteSPI(0x05);; TempReg=ReadSPI();; SCL=0;; WDCS=1;; return(TempReg);; }; */; //写看门狗状态寄存器; void WrsrDog()
       
RSEG ?PR?WrsrDog?WD5045WrsrDog: USING 0
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: e( ~# J6 X2 a0 [4 q: R ACALL WrenDog
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- ~4 O1 d' h9 D' f) X  W) J9 u CLR WDCS
       
MOV R7,#01H ACALL _WriteSPI
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MOV R7,#00H ACALL _WriteSPI
       
2 k- p. a& z9 T; g. u CLR SCL SETB WDCS
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AJMP Delay10ms; END OF WrsrDog
       
; //看门狗存储器1字节读出; unsigned char ReadDogByte(unsigned char Add)
       
6 I/ w1 T4 F- |9 D3 C- E) p: C+ ]4 ? RSEG ?PR?_ReadDogByte?WD5045_ReadDogByte: USING 0 ; SOURCE LINE # 106;---- Variable 'Add?545' assigned to Register 'R5' ---- MOV R5,AR7
       
CLR SCL CLR WDCS
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MOV R7,#03H ACALL _WriteSPI
       
8 ~2 _6 `' R% y, |6 _, V MOV R7,AR5 ACALL _WriteSPI
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4 u+ O  u& y7 @- i& I7 T ACALL ReadSPI;---- Variable 'Temp1?546' assigned to Register 'R7' ---- CLR SCL SETB WDCS?C0013: RET ; END OF _ReadDogByte
       
  a4 V+ q6 u! f- G+ W; ; ; void WriteDogByte(unsigned char Address,unsigned char WrData)
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RSEG ?PR?_WriteDogByte?WD5045_WriteDogByte: USING 0 ; SOURCE LINE # 120;---- Variable 'WrData?648' assigned to Register 'R5' ----;---- Variable 'Address?647' assigned to Register 'R4' ---- MOV R4,AR7
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3 {- e( a% X2 R, y0 N: f6 e ACALL WrenDog
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CLR WDCS
       
  L( a6 k2 X2 w MOV R7,#02H ACALL _WriteSPI
       
& }- h* N8 ^1 c' A# H MOV R7,AR4 ACALL _WriteSPI
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7 ^5 G/ Z3 A2 o MOV R7,AR5 ACALL _WriteSPI
       
+ ~9 M' }+ q+ X; Y) W CLR SCL SETB WDCS
       
AJMP Delay10ms
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; END OF _WriteDogByte
       
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6 T2 A1 P: S  Z或者可加入本C程序，文件名为WD5045.C再通过本人整理的C51调用汇编的帖子指导生成以上WD5045.A51文件
       
//*******************************************#include <define.c>
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void Delay10ms(void) { _nop_();
       
. N/ o3 k. L& V) A. M //写入汇编程序，此处没有写C程序只保留框架，等编译成.A51后可以取消注释字符即可
       
% E! _3 C: I- m//另外需要说明的是X5045在写入数据后一般要有10ms的延时执行非忆失操作 /* ; 延时约10ms. MOV R1,#23 ?C0013: MOV R0,#198 ?C0014: DJNZ R0,?C0014 DJNZ R1,?C0013 MOV R1,#1 ?C0015: MOV R0,#17 ?C0016: DJNZ R0,?C0016 DJNZ R1,?C0015 RET ; END OF _WriteDogByte SETB WDCS END ;1+(198*2+2+1)*23=9178 ;1+1+(17*2+2+1)*1=39 共9217*1.085=10ms */
       
' d$ d) j  q5 g- W } //向SPI串口写入1字节数据void WriteSPI(unsigned char da) { unsigned char data i; for(i=0;i<8;i++) { SCL=0; da=da<<1; ADIN=(bit)(da & 0x80); SCL=1; } }
       
unsigned char ReadSPI(void) { unsigned char data i; unsigned char data TempSPI; bit j;
       
for(i=0;i<8;i++) { SCL=1; SCL=0; j=DOUT; TempSPI=TempSPI<<1; if(j) TempSPI|=0x01; } return (TempSPI); }
       
//看门狗写使能void WrenDog(void) { SCL=0; WDCS=0; WriteSPI(0x06); SCL=0; WDCS=1; }/*//读看门狗状态unsigned char RdsrDog(void) { unsigned char TempReg; SCL=0; WDCS=0; WriteSPI(0x05); TempReg=ReadSPI(); SCL=0; WDCS=1; return(TempReg); }*///写看门狗状态寄存器void WrsrDog() { WrenDog(); WDCS=0; WriteSPI(1); WriteSPI(0); SCL=0;

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WDCS=1; Delay10ms(); }
       
//看门狗存储器1字节读出unsigned char ReadDogByte(unsigned char Add) { unsigned char data Temp1; SCL=0; WDCS=0; WriteSPI(3); //读指令，其中A8=0,表示为存储器的前一半 WriteSPI(Add); //地址 Temp1=ReadSPI(); //读看门狗存储器1字节到Temp1中 SCL=0; WDCS=1; return(Temp1); }
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$ f+ \  ^1 B: i9 j; t' A. m void WriteDogByte(unsigned char Address,unsigned char WrData) { WrenDog(); WDCS=0;
       
WriteSPI(0x02); //写指令，其中A8=0,表示为存储器的前一半 WriteSPI(Address); //地址 WriteSPI(WrData); //给看门狗存储器写1字节 SCL=0; WDCS=1;
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Delay10ms();}
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( _$ U# S- d+ s  p4 s4 t希望能对你有所帮助

滴滴维修

读者可以根据自己实际电路修改
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ADIN BIT 0B0H.7SCL BIT 0B0H.5DOUT BIT 0B0H.4WDCS BIT 0B0H.3