keil报错ERROR L121 (IMPROPER FIXUP)

ID:307417 · 发表于 2018-5-9 18:59

之前找的一份资料里的程序，想改程序时却出现了ERROR L121 (IMPROPER FIXUP)的情况，不知道该怎么解决。不过资料里确实有HEX文件，我也稍微了解了一下，可能是keil版本高的原因，我用的是keil5.

ID:307417 · 发表于 2018-5-9 19:08

#include "keyboard.h"
extern bit bdata flag_key;
//按键扫描函数 :
//功能；只扫描一个按键，按键为号小优先
//返回键值：
//       1 2 3 10    //10:清零重量，兼去皮功能
//       4 5 6 11    //11:清除单价
//       7 8 9 12    //12:显示数值偏大调节按键
//       14 0 15 13    //14:无功能（用于扩展）15：小数点 13：显示数值偏小调节按键

unsigned char Getkeyboard(void)
{
unsigned char number = 0;
unsigned char i;
//行输入低电平
ROW1=ROW2=ROW3=ROW4=0;
//如果列输出不全为高，则说明有键按下
if (((COL1!=1)||(COL2!=1)||(COL3!=1)||(COL4!=1))&&flag_key==1)
{
   //输入0111
   flag_key=0;
   ROW1=0;
   ROW2=ROW3=ROW4=1;
   for (i=0;i<20;i++);
   if (COL1==0) return 1;    // 7
   else if (COL2==0) return 2; //    8
   else if (COL3==0) return 3;    // 9
   else if (COL4==0) return 10;    //    10
   //输入1011
   ROW2=0;
   ROW1=ROW3=ROW4=1;
   for (i=0;i<20;i++);
   if (COL1==0) return 4;    //4
   else if (COL2==0) return 5; //  5
   else if (COL3==0) return 6; // 6
   else if (COL4==0) return 11;    // 11
   //输入1101
   ROW3=0;
   ROW1=ROW2=ROW4=1;
   for (i=0;i<20;i++);
   if (COL1==0) return 7;  //1
   else if (COL2==0) return 8;    // 2
   else if (COL3==0) return 9;    // 3
   else if (COL4==0) return 12;    // 12
   //输入0111
   ROW4=0;
   ROW1=ROW2=ROW3=1;
   for (i=0;i<20;i++);
   if (COL1==0) return 14;
   else if (COL2==0) return 0;
   else if (COL3==0) return 15;
   else if (COL4==0) return 13;
   //没有检测到列低电平
   return 99;
}
else if(COL1==1&&COL2==1&&COL3==1&&COL4==1)
flag_key=1;
return 99;
}

ID:307417 · 发表于 2018-5-10 09:51

qq8281212 发表于 2018-5-9 19:42
书上有解释

请问一下是哪本书

ID:328014 · 发表于 2021-1-10 23:44

我今天也遇到了同样的问题,IMPROPER FIXUP,研究了半天终于解决了,原来这个问题是因为Keil4和Keil5不支持bdata的问题导致的,所以退回Keil2,新建工程,加入文件,重新编译就OK了,你这个上面也有bdata所以也可以用我的办法来成功解决的.

参考资料:
The variables ibase and bary are bit-addressable. Therefore, the individual bits of these variables may be directly accessed and modified. Use the sbit keyword to declare new variables that access the bits of bdata variables. For example:

sbit mybit0 = ibase ^ 0;    /* bit 0 of ibase */
sbit mybit15 = ibase ^ 15; /* bit 15 of ibase */

sbit Ary07 = bary[0] ^ 7;    /* bit 7 of bary[0] */
sbit Ary37 = bary[3] ^ 7;    /* bit 7 of bary[3] */
The above example represents declarations, not assignments to the bits of the ibase and bary bdata variables. The expression following the carat symbol ('^') in the example specifies the position of the bit to access with this declaration. This expression must be a constant value.

The range depends on the type of the base variable included in the declaration. The range is:

0-7 for char and unsigned char, 0-15 for int, unsigned int,
short, and unsigned short, and
0-31 for long and unsigned long.

并没有定义bit类型的bdata。因此定义成char。

OFDM_PHY_ext char    bdata bLib_RxPlcEnd;
OFDM_PHY_ext char    bdata  RX_BUSY;
OFDM_PHY_ext char    bdata  TX_BUSY;
Comm_ext char bdata bCommRxEnd;
Comm_ext char bdata bCommRxstart;

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