AT89S52程序错误，望指教！

紫色宇宙

AT89S52程序错误，望指教！ [复制链接]

本人写AT89S52单片机1602显示程序出现问题，始终找不到症结，向大家请教！先行谢过！！！！
#include
sbit RS=P3^4;
sbit LCDCS=P1^5;
#define uchar unsigned char;
uchar mydata;
uchar command;
uchar a;
uchar code table[]={"i love you"};
uchar code table1[15]={"my motherland"};
void delay();
void write_data();
void write_command();
void delay(uchar a)
{
   unsigned int i,j;
        for(i=0;i<200;i++)
        for(j=0;j }
void write_data(uchar mydata)
{
        RS=1;
    P2=mydata;
        delay(5);
        LCDCS=1;
        delay(5);
    LCDCS=0;               
}
void write_command(uchar command)
{
        RS=0;
        P2=command;
        delay(5);
        LCDCS=0;
        delay(5);
        LCDCS=1;
}       
void init()
{
        LCDCS=1;
        write_command(0x38);
        write_command(0x0e);
        write_command(0x06);
        write_command(0x01);
        write_command(0x80+0x10);
}
void main()
{   int num;
        init();
        for( num=0;num<11;num++)
        {
                write_dat(table[num]);
                delay(20);
        }
        wtite_command(1);
        write_command(0x80+0x53);
        for( num=0;num<15;num++)
    {
                write_command(table1[num]);
                delay(20);
        }
while(1);
}
****************************************************************
编译提示：
compiling xian.c...
XIAN.C(8): error C247: non-address/-constant initializer
XIAN.C(13): error C141: syntax error near ';'
XIAN.C(19): error C141: syntax error near ';'
XIAN.C(28): error C141: syntax error near ';'
xian.c - 4 Error(s), 0 Warning(s).

lu123jing

//

1. 
   
2. #include
   
3. sbit RS=P3^4;
   
4. sbit LCDCS=P1^5;
   
5. #define uchar unsigned char
   
6. uchar mydata;
   
7. uchar command;
   
8. uchar a;
   
9. uchar code table[]={"i love you"};
   
10. uchar code table1[15]={"my motherland"};
    
11. void delay(uchar a);
    
12. void write_data(uchar);
    
13. void write_command(uchar);
    
14. void delay(uchar a)
    
15. {
    
16.   unsigned int i,j;
    
17. for(i=0;i<200;i++)
    
18. for(j=0;j
19. }
    
20. void write_data(uchar mydata)
    
21. {
    
22. RS=1;
    
23.   P2=mydata;
    
24. delay(5);
    
25. LCDCS=1;
    
26. delay(5);
    
27.   LCDCS=0;
    
28. }
    
29. void write_command(uchar command)
    
30. {
    
31. RS=0;
    
32. P2=command;
    
33. delay(5);
    
34. LCDCS=0;
    
35. delay(5);
    
36. LCDCS=1;
    
37. }
    
38. void init()
    
39. {
    
40. LCDCS=1;
    
41. write_command(0x38);
    
42. write_command(0x0e);
    
43. write_command(0x06);
    
44. write_command(0x01);
    
45. write_command(0x80+0x10);
    
46. }
    
47. void main()
    
48. { int num;
    
49. init();
    
50. for( num=0;num<11;num++)
    
51. {
    
52. write_data(table[num]);
    
53. delay(20);
    
54. }
    
55. write_command(1);
    
56. write_command(0x80+0x53);
    
57. for( num=0;num<15;num++)
    
58.   {
    
59. write_command(table1[num]);
    
60. delay(20);
    
61. }
    
62. while(1);
    
63. }
    

复制代码

这个可以编译通过的

yattai

问题如下.
1 #define uchar unsigned char; 多了个分号,这种定义,不应该用 #define 而应该是
typedef unsigned char U16,BYTE,ucahr;  这种写法.

2 void delay(uchar a);
void write_data(uchar);
void write_command(uchar);
这几个函数的定义没有写清楚参数表.

3 有个函数有拼写错误

lgyno

只需要把第四行的分号去掉即可

liurse

使用#define 宏定义 没有分号呢 因为不是一个语句