tiny85休眠前如何关闭看门狗

biying

之前用M16正常的程序，移植到TINY85上就出现睡眠前不能关闭看门狗，导致一睡眠就看门狗复位，搞了几个小时了，实在没办法才来发贴求助，另外，这个看门狗的溢出时间设置没有效果，也不知道是什么原因，融丝里的WDTON 已经编程

1. /*****************************************************
   
2. This program was produced by the
   
3. CodeWizardAVR V2.05.1b Evaluation
   
4. Automatic Program Generator
   
5. ?Copyright 1998-2011 Pavel Haiduc, HP InfoTech s.r.l.
   
6. http://www.hpinfotech.com
   
7. 
   
8. Project :
   
9. Version :
   
10. Date    : 2014-5-3
    
11. Author  : Freeware, for evaluation and non-commercial use only
    
12. Company :
    
13. Comments:
    
14. 
    
15. 
    
16. Chip type               : ATtiny85
    
17. AVR Core Clock frequency: 8.000000 MHz
    
18. Memory model            : Small
    
19. External RAM size       : 0
    
20. Data Stack size         : 128
    
21. *****************************************************/
    
22. 
    
23. #include <tiny85.h>
    
24. #include<delay.h>
    
25. 
    
26. // Declare your global variables here
    
27. #define uchar  unsigned char
    
28. #define uint  unsigned int
    
29. 
    
30. void main(void)
    
31. {
    
32. // Declare your local variables here   在这里您声明局部变量
    
33. 
    
34. // Crystal Oscillator division factor: 1
    
35. #pragma optsize-
    
36. CLKPR=0x80;
    
37. CLKPR=0x00;
    
38. #ifdef _OPTIMIZE_SIZE_
    
39. #pragma optsize+
    
40. #endif
    
41. 
    
42. // Input/Output Ports initialization
    
43. // Port B initialization
    
44. // Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out
    
45. // State5=1 State4=1 State3=1 State2=0 State1=0 State0=0
    
46. PORTB=0xFF;
    
47. DDRB=0xFF;
    
48. 
    
49. // Timer/Counter 0 initialization
    
50. // Clock source: System Clock
    
51. // Clock value: Timer 0 Stopped
    
52. // Mode: Normal top=0xFF
    
53. // OC0A output: Disconnected
    
54. // OC0B output: Disconnected
    
55. TCCR0A=0x00;
    
56. TCCR0B=0x00;
    
57. TCNT0=0x00;
    
58. OCR0A=0x00;
    
59. OCR0B=0x00;
    
60. 
    
61. // Timer/Counter 1 initialization
    
62. // Clock source: System Clock
    
63. // Clock value: Timer1 Stopped
    
64. // Mode: Normal top=0xFF
    
65. // OC1A output: Disconnected
    
66. // OC1B output: Disconnected
    
67. // Timer1 Overflow Interrupt: Off
    
68. // Compare A Match Interrupt: Off
    
69. // Compare B Match Interrupt: Off
    
70. PLLCSR=0x00;
    
71. 
    
72. TCCR1=0x00;
    
73. GTCCR=0x00;
    
74. TCNT1=0x00;
    
75. OCR1A=0x00;
    
76. OCR1B=0x00;
    
77. OCR1C=0x00;
    
78. 
    
79. // External Interrupt(s) initialization
    
80. // INT0: Off
    
81. // Interrupt on any change on pins PCINT0-5: Off
    
82. GIMSK=0x00;
    
83. MCUCR=0x00;
    
84. 
    
85. // Timer(s)/Counter(s) Interrupt(s) initialization
    
86. TIMSK=0x00;
    
87. 
    
88. // Universal Serial Interface initialization
    
89. // Mode: Disabled
    
90. // Clock source: Register & Counter=no clk.
    
91. // USI Counter Overflow Interrupt: Off
    
92. USICR=0x00;
    
93. 
    
94. // Analog Comparator initialization
    
95. // Analog Comparator: Off
    
96. ACSR=0x80;
    
97. ADCSRB=0x00;
    
98. DIDR0=0x00;
    
99. 
    
100. // ADC initialization
     
101. // ADC disabled
     
102. ADCSRA=0x00;
     
103. 
     
104. // Watchdog Timer initialization
     
105. // Watchdog Timer Prescaler: OSC/2k
     
106. // Watchdog Timer interrupt: Off
     
107. #pragma optsize-
     
108. #asm("WDR")   //喂狗
     
109. WDTCR |= (1<<WDCE) | (1<<WDE);
     
110. /* 设置新预分频器值 = 64K周期 (~0.5 s) */
     
111. WDTCR = (1<<WDE) | (1<<WDP2) | (0<<WDP0)| (1<<WDP1)| (0<<WDP3)| (0<<WDIE);  
     
112. #ifdef _OPTIMIZE_SIZE_
     
113. #pragma optsize+
     
114. #endif
     
115. 
     
116. 
     
117. 
     
118. while (1)
     
119.       {
     
120.       // Place your code here
     
121.       PORTB&=(0<<3)|(0<<4)|(0<<5);
     
122.       delay_ms(1000);
     
123.           PORTB|=(1<<3)|(1<<4)|(0<<5);
     
124.           delay_ms(2000);         
     
125.       MCUCR |= (1<<SM1) | (0<<SM0);  // 掉电模式
     
126.       MCUCR |= (1<<SE);   //睡眠使能
     
127.       PORTB&=(0<<3)|(0<<4)|(0<<5);
     
128.           delay_ms(2000);
     
129.      #asm("WDR")   //喂狗
     
130. /* Clear WDRF in MCUSR */
     
131. MCUSR &= ~(1<<WDRF);
     
132. /* Write logical one to WDCE and WDE */
     
133. WDTCR |= (1<<WDCE) | (1<<WDE);
     
134. /* Turn off WDT */
     
135. WDTCR &= ~(1<<WDE);   
     
136.       #asm("sleep")      //休眠
     
137.       PORTB|=(1<<3)|(1<<4)|(0<<5);
     
138.           delay_ms(1000);
     
139.       PORTB&=(0<<3)|(0<<4)|(0<<5);
     
140.           delay_ms(5000);
     
141.        }   
     
142. }
     

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