新手学keil c51碰到的问题，麻烦大家指教 点击：9798 | 回复：27
发表于：2006-03-16 08:51:00
楼主
我在周立功公司的网站上下载了keil7.09DEMO版，然后按着一个论坛上的精华贴“51单片机C语言学习”的说明，一步步的设置和输入代码：
#include <AT89X51.H>
#include <stdio.h>
void main(void)
{
SCON = 0x50; //串口方式1,允许接收
TMOD = 0x20; //定时器1定时方式2
TCON = 0x40; //设定时器1开始计数
TH1 = 0xE8; //11.0592MHz 1200波特率
TL1 = 0xE8;
TI = 1;
TR1 = 1; //启动定时器
while(1)
{
printf ("Hello World!\n"); //显示Hello World
}
}
最后运行却报错，提示信息：
Build target 'Target 1'
assembling STARTUP.A51...
compiling 4.c...
*** WARNING C318 IN LINE 1 OF 4.c: can't open file 'AT89X51.H'
4.C(6): error C100: unprintable character 0xA1 skipped
4.C(6): error C100: unprintable character 0xA1 skipped
4.C(6): error C202: 'SCON': undefined identifier
4.C(7): error C100: unprintable character 0xA1 skipped
4.C(7): error C100: unprintable character 0xA1 skipped
4.C(7): error C202: 'TMOD': undefined identifier
4.C(8): error C100: unprintable character 0xA1 skipped
4.C(8): error C100: unprintable character 0xA1 skipped
4.C(8): error C202: 'TCON': undefined identifier
4.C(9): error C100: unprintable character 0xA1 skipped
4.C(9): error C100: unprintable character 0xA1 skipped
4.C(9): error C202: 'TH1': undefined identifier
4.C(10): error C100: unprintable character 0xA1 skipped
4.C(10): error C100: unprintable character 0xA1 skipped
4.C(10): error C202: 'TL1': undefined identifier
4.C(11): error C100: unprintable character 0xA1 skipped
4.C(11): error C100: unprintable character 0xA1 skipped
4.C(11): error C202: 'TI': undefined identifier
4.C(12): error C100: unprintable character 0xA1 skipped
4.C(12): error C100: unprintable character 0xA1 skipped
4.C(12): error C202: 'TR1': undefined identifier
4.C(14): error C100: unprintable character 0xA1 skipped
4.C(14): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(17): error C100: unprintable character 0xA1 skipped
4.C(17): error C100: unprintable character 0xA1 skipped
4.C(17): error C100: unprintable character 0xA1 skipped
4.C(17): error C100: unprintable character 0xA1 skipped
Target not created
不知道是怎么回事，希望高手能指点迷津。多谢啊！
#include <AT89X51.H>
#include <stdio.h>
void main(void)
{
SCON = 0x50; //串口方式1,允许接收
TMOD = 0x20; //定时器1定时方式2
TCON = 0x40; //设定时器1开始计数
TH1 = 0xE8; //11.0592MHz 1200波特率
TL1 = 0xE8;
TI = 1;
TR1 = 1; //启动定时器
while(1)
{
printf ("Hello World!\n"); //显示Hello World
}
}
最后运行却报错，提示信息：
Build target 'Target 1'
assembling STARTUP.A51...
compiling 4.c...
*** WARNING C318 IN LINE 1 OF 4.c: can't open file 'AT89X51.H'
4.C(6): error C100: unprintable character 0xA1 skipped
4.C(6): error C100: unprintable character 0xA1 skipped
4.C(6): error C202: 'SCON': undefined identifier
4.C(7): error C100: unprintable character 0xA1 skipped
4.C(7): error C100: unprintable character 0xA1 skipped
4.C(7): error C202: 'TMOD': undefined identifier
4.C(8): error C100: unprintable character 0xA1 skipped
4.C(8): error C100: unprintable character 0xA1 skipped
4.C(8): error C202: 'TCON': undefined identifier
4.C(9): error C100: unprintable character 0xA1 skipped
4.C(9): error C100: unprintable character 0xA1 skipped
4.C(9): error C202: 'TH1': undefined identifier
4.C(10): error C100: unprintable character 0xA1 skipped
4.C(10): error C100: unprintable character 0xA1 skipped
4.C(10): error C202: 'TL1': undefined identifier
4.C(11): error C100: unprintable character 0xA1 skipped
4.C(11): error C100: unprintable character 0xA1 skipped
4.C(11): error C202: 'TI': undefined identifier
4.C(12): error C100: unprintable character 0xA1 skipped
4.C(12): error C100: unprintable character 0xA1 skipped
4.C(12): error C202: 'TR1': undefined identifier
4.C(14): error C100: unprintable character 0xA1 skipped
4.C(14): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(16): error C100: unprintable character 0xA1 skipped
4.C(17): error C100: unprintable character 0xA1 skipped
4.C(17): error C100: unprintable character 0xA1 skipped
4.C(17): error C100: unprintable character 0xA1 skipped
4.C(17): error C100: unprintable character 0xA1 skipped
Target not created
不知道是怎么回事，希望高手能指点迷津。多谢啊！
发表于：2007-11-02 10:51:00
22楼
Build target 'Target 1'
compiling clock.c...
linking...
BL51 BANKED LINKER/LOCATER V5.12 - SN: Eval Version
COPYRIGHT KEIL ELEKTRONIK GmbH 1987 - 2004
".\clock.obj"
TO "clock"
******************************************************************************
* RESTRICTED VERSION WITH 0800H BYTE CODE SIZE LIMIT; USED: 08B6H BYTE (108%) *
******************************************************************************
Program Size: data=69.0 xdata=0 code=2330
LINK/LOCATE RUN COMPLETE. 0 WARNING(S), 0 ERROR(S)
*** FATAL ERROR L250: CODE SIZE LIMIT IN RESTRICTED VERSION EXCEEDED
MODULE: D:\KEIL\C51\LIB\C51S.LIB (-----)
LIMIT: 0800H BYTES
Target not created
不知是什么原因，请教各位大侠？
compiling clock.c...
linking...
BL51 BANKED LINKER/LOCATER V5.12 - SN: Eval Version
COPYRIGHT KEIL ELEKTRONIK GmbH 1987 - 2004
".\clock.obj"
TO "clock"
******************************************************************************
* RESTRICTED VERSION WITH 0800H BYTE CODE SIZE LIMIT; USED: 08B6H BYTE (108%) *
******************************************************************************
Program Size: data=69.0 xdata=0 code=2330
LINK/LOCATE RUN COMPLETE. 0 WARNING(S), 0 ERROR(S)
*** FATAL ERROR L250: CODE SIZE LIMIT IN RESTRICTED VERSION EXCEEDED
MODULE: D:\KEIL\C51\LIB\C51S.LIB (-----)
LIMIT: 0800H BYTES
Target not created
不知是什么原因，请教各位大侠？
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