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標題:
求知，數碼管程序編寫時數組定義問題
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作者:
暮云雨
時間:
2015-3-25 16:36
標題:
求知，數碼管程序編寫時數組定義問題
#include<reg51.h>
unsigned char code table1[8] = {0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char code table2[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
unsigned char code data[8];
void main()
{
unsigned char code data[8];
unsigned char i;
unsigned int j;
for(i=0;i<8;i++)
{
data[i]=table2[i]
}
while(1)
{
unsigned char a;
for(a=0;a<8;a++)
{
P1=table1[i];
P0=data[i];
j=10;
while(j--);
P0=0x00;
}
}
}
錯誤
compiling led1.c...
LED1.C(5): error C141: syntax error near 'data'
LED1.C(5): error C141: syntax error near '['
LED1.C(9): error C141: syntax error near 'data'
LED1.C(9): error C141: syntax error near '['
LED1.C(9): error C141: syntax error near ']'
LED1.C(10): error C141: syntax error near 'unsigned'
LED1.C(10): error C202: 'i': undefined identifier
LED1.C(11): error C141: syntax error near 'unsigned'
LED1.C(11): error C202: 'j': undefined identifier
LED1.C(12): error C202: 'i': undefined identifier
LED1.C(14): error C141: syntax error near '['
LED1.C(14): error C202: 'i': undefined identifier
LED1.C(15): error C141: syntax error near '}'
LED1.C(21): error C202: 'i': undefined identifier
LED1.C(22): error C141: syntax error near 'data'
LED1.C(22): error C202: 'i': undefined identifier
LED1.C(24): error C202: 'j': undefined identifier
Target not created
作者:
liaolinhui
時間:
2015-3-26 00:29
unsigned char code data[8];
這個不能用code，code是存在ROM里面的，不能改變值，而你這個是需要改變的，所以要去掉code
作者:
野強強
時間:
2015-3-26 14:17
樓上言之有理。。。
作者:
安陽市新世紀
時間:
2015-5-23 14:54
樓上說的是呀，通常來說常量都是放在單片機ROM里的，為了區別常量變量，51單片機code及存放在單片機ROM里
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