标题: C语言如何把函数指针参数传到宏定义开辟的空间呢？ [打印本页]

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作者: hei51com    时间: 2020-11-6 10:46
标题: C语言如何把函数指针参数传到宏定义开辟的空间呢？
如下,想用#else 替换，但这样编译不通过，请教怎么修改才能编译通过。

1. typedef struct{
   
2. uint8 Address;
   
3. uint8 Top_data;
   
4. uint8 Middle_data;
   
5. uint8 Botton_data;
   
6. }RAM_TAB;
   
7. 
   
8. RAM_TAB *ram_ptr;
   
9. 
   
10. #define RESEVE_ADDR (0x8fb2600)//使用RESEVE保留的内存
    
11. 
    
12. typedef struct{
    
13. uint8 Address;
    
14. uint8 Top_data;
    
15. uint8 Middle_data;
    
16. uint8 Botton_data;
    
17. }ram_tab_t;
    
18. 
    
19. #define g_ram_tab_info ((ram_tab_t *)(RESEVE_ADDR))
    
20. 
    
21. int WriteRam(uint8 data_length, RAM_TAB *ram_address)
    
22. {
    
23. uint8 i,
    
24. 
    
25. #if 0
    
26. ram_ptr = ram_address;
    
27. #else
    
28. g_ram_tab_info = ram_address;
    
29. #endif
    
30. 
    
31. for(i = 0; i < data_length; i++)
    
32. {
    
33. #if 0
    
34. if(WriteReg(0x1d,&ram_ptr->Address,ADDR,2) != FALSE)
    
35. return -1;
    
36. if(WriteReg(0x10,&ram_ptr->Top_data,ADDR,2) != FALSE)
    
37. return -1;
    
38. if(WriteReg(0x11,&ram_ptr->Middle_data,ADDR,2) != FALSE)
    
39. return -1;
    
40. if(WriteReg(0x22,&ram_ptr->Botton_data,ADDR,2) != FALSE)
    
41. return -1;
    
42. ram_ptr++;
    
43. #else
    
44. if(WriteReg(0x1d,&g_ram_tab_info->Address,ADDR,2) != FALSE)
    
45. return -1;
    
46. if(WriteReg(0x10,&g_ram_tab_info->Top_data,ADDR,2) != FALSE)
    
47. return -1;
    
48. if(WriteReg(0x11,&g_ram_tab_info->Middle_data,ADDR,2) != FALSE)
    
49. return -1;
    
50. if(WriteReg(0x22,&g_ram_tab_info->Botton_data,ADDR,2) != FALSE)
    
51. return -1;
    
52. g_ram_tab_info++;
    
53. #endif
    
54. }
    
55. 
    
56. return 0;
    
57. }

复制代码

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作者: B001    时间: 2020-11-6 15:41
对于像STM32这种程序，你所定义的RESERVE_ADDR属于FLASH的地址范围，g_ram_tab_info代表的是一个FLASH地址，第28行g_ram_tab_info=ram_address是试图将FLASH的指改变，这是不允许的。

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