标题: *** ERROR L104: MULTIPLE PUBLIC DEFINITIONS 求看看编程问题 [打印本页]
作者: 13799734749    时间: 2019-2-28 11:50
标题: *** ERROR L104: MULTIPLE PUBLIC DEFINITIONS 求看看编程问题
Rebuild target 'Target 1'
compiling 18b20.c...
compiling L1602.C...
linking...
*** ERROR L104: MULTIPLE PUBLIC DEFINITIONS
    SYMBOL:  MAIN
    MODULE:  .\L1602.obj (L1602)
*** WARNING L16: UNCALLED SEGMENT, IGNORED FOR OVERLAY PROCESS
    SEGMENT: ?PR?MAIN?L1602
Program Size: data=28.0 xdata=0 code=851
Target not created.
Build Time Elapsed:  00:00:01
  1. #include<reg52.h>
  2. sbit RS = P2^0;  
  3. sbit RW = P2^1;
  4. sbit EN = P2^2;

  6. #define RS_CLR RS=0
  7. #define RS_SET RS=1
  8. #define RW_CLR RW=0
  9. #define RW_SET RW=1
  10. #define EN_CLR EN=0
  11. #define EN_SET EN=1


  14. void delay_us(unsigned int r) /{
  15. if (r== 0)
  16.   {  
  17.   return ;  
  18.   }
  19.   while (--r);
  20. }


  23. void delay_ms(unsigned char f)
  24. {
  25. unsigned char k, u;
  26. for (k = 1; k < f; k++)
  27. {
  28.    for (u = 1;u; u++)
  29.    {   ;   }
  30.     }
  31. }


  34. void LCD_write_com(unsigned char com)
  35. {  
  36. RS_CLR;
  37. RW_CLR;
  38. EN_SET;
  39. P0 = com;
  40. delay_us(5);
  41. EN_CLR;
  42. }


  45. void LCD_write_Data(unsigned char Data)
  46. {
  47. RS_SET;
  48. RW_CLR;
  49. EN_SET;
  50. P0 = Data;
  51. delay_us(5);
  52. EN_CLR;
  53. }

  55. void LCD_clear(void)
  56. {
  57. LCD_write_com(0x01);
  58. delay_ms(5);}


  61. void LCD_write_str(unsigned char x1,unsigned char y1,unsigned char *s)
  62. {     
  63. if (y1 == 0)
  64. {     
  65. LCD_write_com(0x80 + x1);     
  66. }
  67. else
  68. {     
  69. LCD_write_com(0xC0 + x1);     
  70. }        
  71. while (*s)
  72. {     
  73. LCD_write_Data( *s);     
  74. s ++;     
  75. }
  76. }


  79. void LCD_write_char(unsigned char x1,unsigned char y1,unsigned char Data)
  80. {     
  81. if (y1 == 0)
  82. {     
  83. LCD_write_com(0x80 + x1);     
  84. }   
  85. else
  86. {     
  87. LCD_write_com(0xC0 + x1);     
  88. }        
  89. LCD_write_Data( Data);  
  90. }


  93. void LCD_init(void)
  94. {
  95.    LCD_write_com(0x38);   
  96.    delay_ms(5);
  97.    LCD_write_com(0x38);
  98.    delay_ms(5);
  99.    LCD_write_com(0x38);
  100.    delay_ms(5);
  101.    LCD_write_com(0x38);  
  102.    LCD_write_com(0x08);   
  103.    LCD_write_com(0x01);  
  104.    LCD_write_com(0x06);   
  105.    delay_ms(5);
  106.    LCD_write_com(0x0C);  
  107.    }

  109.   
  110.    void main(void)
  111. {
  112.   unsigned char i2;
  113. unsigned char *p;
  114. delay_ms(100);
  115. LCD_init();
  116. while (1)
  117. {  
  118. i2 = 1;  
  119. p = "222222";  
  120. LCD_clear();  
  121. LCD_write_str(2,0,"Welcome to");  
  122. delay_ms(250);   
  123. while (*p)
  124. {   
  125. LCD_write_char(i2,1,*p);   
  126. i2 ++;   
  127. p ++;   
  128. delay_ms(250);   
  129. }  
  130. delay_ms(250);  
  131. }
  132. }
复制代码


作者: xuyaqi    时间: 2019-2-28 16:36
多重定义，要看整个工程才能找到具体原因。
作者: 飞云居士    时间: 2019-2-28 17:09
L1602模块和main模块有同名的定义。
作者: qiwang    时间: 2020-5-25 16:22
我和你问题一模一样 请问你解决了吗



欢迎光临 (http://www.51hei.com/bbs/) Powered by Discuz! X3.1