还是编译问题数组定义方式

只看该作者 · 2011-11-8 10:28

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Debug build of project `E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\crowcon8008.mcp' started.
Language tool versions: mplink.exe v4.38, mplink.exe v4.38, mcc18.exe v3.37.01, mplib.exe v4.38
Preprocessor symbol `__DEBUG' is defined.
Target debug platform is `__MPLAB_DEBUGGER_ICD3=1'.
Debug platform options are: `__ICD2RAM=1'.
Tue Nov 08 10:44:43 2011
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Clean: Deleting intermediary and output files.
Clean Warning: File "D:\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.o" doesn't exist.
Clean Warning: File "D:\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\crowcon8008.cof" doesn't exist.
Clean Warning: File "D:\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\crowcon8008.hex" doesn't exist.
Clean: Deleted file "E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\crowcon8008.mcs".
Clean: Done.
Executing: "E:\mcc18\bin\mcc18.exe" -p=18F45K22 "maxver2.0.c" -fo="maxver2.0.o" -D__DEBUG -D__MPLAB_DEBUGGER_ICD3=1 -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1697:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1700:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1703:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1706:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1709:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1712:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1715:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1718:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1721:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1724:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1727:Warning [2054] suspicious pointer conversion
E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\maxver2.0.c:1730:Warning [2054] suspicious pointer conversion
Executing: "E:\mcc18\bin\mplink.exe" /p18F45K22 /l"C:\mcc18\lib" "maxver2.0.o" /u_CRUNTIME /u_DEBUG /u_DEBUGCODESTART=0x7dc0 /u_DEBUGCODELEN=0x240 /u_DEBUGDATASTART=0x5f6 /u_DEBUGDATALEN=0xa /z__MPLAB_BUILD=1 /z__MPLAB_DEBUG=1 /z__MPLAB_DEBUGGER_ICD3=1 /z__ICD2RAM=1 /o"crowcon8008.cof" /M"crowcon8008.map" /W
MPLINK 4.38, Linker
Copyright (c) 1998-2010 Microchip Technology Inc.
Errors : 0
MP2HEX 4.38, COFF to HEX File Converter
Copyright (c) 1998-2010 Microchip Technology Inc.
Errors : 0
Loaded E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\crowcon8008.cof.
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Debug build of project `E:\1\CROWCON8000 PIC18F4523\CROWCON8000 PIC18F4523\crowcon8008.mcp' succeeded.
Language tool versions: mplink.exe v4.38, mplink.exe v4.38, mcc18.exe v3.37.01, mplib.exe v4.38
Preprocessor symbol `__DEBUG' is defined.
Target debug platform is `__MPLAB_DEBUGGER_ICD3=1'.
Debug platform options are: `__ICD2RAM=1'.
Tue Nov 08 10:44:51 2011
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BUILD SUCCEEDED

const ram char Disp[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,
   //0 1    2 3 4 5 6 7 8 9 A b C d E F
   0x76,0x38,0x40,0x3e,0x5c,0x31,0x70,0x08,0xce,0x08,0x08,0x40,0x80};
      // H L - U o T r _ 18 19  20 21  22

const ram char Dis_M[]={0xe,0x12,0x13,0x0f};//E-U

display_measure(&Dis_M);

void display_measure(unsigned char *Dis_String)
{
   unsigned char temp,i,j=0x10,code;
            for(i=0;i<4;i++)
            {
               Led_code[i]=Dis_String[i];
            }
}

这种定义数组指针怎么会出现警告，有什么严重后果吗？

只看该作者 · 2011-11-8 10:34

C18里指向ROM的指针和指向RAM的指针是不一样的。

只看该作者 · 2011-11-8 10:44

怎样解决这个问题呢？

2万 · 2011-11-8 11:29

ROM指针应该定义常量指针吧？

只看该作者 · 2011-11-8 11:38

常量指针怎样定义?

只看该作者 · 2011-11-8 11:50

好像用ROM

2万 · 2011-11-8 12:46

常量指针怎样定义?
ljm041128 发表于 2011-11-8 11:38

在类型前加const关键字

只看该作者 · 2011-11-8 14:43

const rom char Disp[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,
   //0 1    2 3 4 5 6 7 8 9 A b C d E F
   0x76,0x38,0x40,0x3e,0x5c,0x31,0x70,0x08,0xce,0x08,0x08,0x40,0x80};
      // H L - U o T r _ 18 19  20 21  22

const rom char Dis_M[]={0xe,0x12,0x13,0x0f};//E-U

都改成这样还出警告！

2万 · 2011-11-8 16:41

不知道你加rom是哪里规定的，俺没用过C18，不知是否有这个规定？

PICC16只需要加const即可。

另外unsigned char *Dis_String是否也需要加const看看？

另外unsigned char temp,i,j=0x10,code;中的code是谁规定的？

俺没用过C18,提示一下。