UART裸奔Uart_Printf（）函数问题；
裸奔程序如下。如果不添加MANI()函数前的几个uart名字开头函数，程序下载后能运行，添加之后就 不能了，
下载后会提示"Running program at 0x30000000",但马上又显示
<1> Download bootloader to nand flash
<2> Download linux kernel to nand flash
<3> Download linux file system to nand flash
<4> Format the nand flash
<5> Boot the linux system
<6> Download e-boot to nand flash
<7> Download program to RAM and run
<8> Download logo picture(*.bmp or *.BMP)
<9> Download program to nor flash
Please select:
这些，程序不能运行的。为什么呢。
我想用Uart_Printf（）；函数来输出。如何才能正确使用？谢谢了。
#include "2440addr.h"
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
//***************************[ UART ]******************************
void Uart_SendByte(int data);
void Uart_Printf(char *fmt,...);
void Uart_TxEmpty(int ch)
{
if(ch==0)
while(!(rUTRSTAT0 & 0x4)); //Wait until tx shifter is empty.
else if(ch==1)
while(!(rUTRSTAT1 & 0x4)); //Wait until tx shifter is empty.
else if(ch==2)
while(!(rUTRSTAT2 & 0x4)); //Wait until tx shifter is empty.
}
//=====================================================================
char Uart_Getch(void)
{
while(!(rUTRSTAT0 & 0x1)); //Receive data ready
return RdURXH0();
return 0 ;
}
//====================================================================
char Uart_GetKey(void)
{
if(rUTRSTAT0 & 0x1) //Receive data ready
return RdURXH0();
else
return 0;
}
//====================================================================
void Uart_GetString(char *string)
{
char *string2 = string;
char c;
while((c = Uart_Getch())!='\r')
{
if(c=='\b')
{
if( (int)string2 < (int)string )
{
Uart_Printf("\b \b");
string--;
}
}
else
{
*string++ = c;
Uart_SendByte(c);
}
}
*string='\0';
Uart_SendByte('\n');
}
//=====================================================================
int Uart_GetIntNum(void)
{
char str;
char *string = str;
int base = 10;
int minus = 0;
int result = 0;
int lastIndex;
int i;
Uart_GetString(string);
if(string=='-')
{
minus = 1;
string++;
}
if(string=='0' && (string=='x' || string=='X'))
{
base = 16;
string += 2;
}
lastIndex = strlen(string) - 1;
if(lastIndex<0)
return -1;
if(string=='h' || string=='H' )
{
base = 16;
string = 0;
lastIndex--;
}
if(base==10)
{
result = atoi(string);
result = minus ? (-1*result):result;
}
else
{
for(i=0;i<=lastIndex;i++)
{
if(isalpha(string))
{
if(isupper(string))
result = (result<<4) + string - 'A' + 10;
else
result = (result<<4) + string - 'a' + 10;
}
else
result = (result<<4) + string - '0';
}
result = minus ? (-1*result):result;
}
return result;
}
//*****************************************************************************
//get a number for the uart
//*****************************************************************************
int Uart_GetIntNum_GJ(void)
{
char string ;
char *p_string = string ;
char c;
int i = 0 ;
int data = 0 ;
while( ( c = Uart_Getch()) != '\r')
{
if(c=='\b') p_string--;
else *p_string++=c;
Uart_SendByte( c ) ;
}
*p_string = '\0';
i = 0 ;
while( string != '\0' )
{
data = data * 10 ;
if( string<'0'||string>'9' )
return -1 ;
data = data + ( string-'0' ) ;
i++ ;
}
return data ;
}
void Uart_SendByte(int data)
{
if(data=='\n')
{
while(!(rUTRSTAT0 & 0x2));
// Delay(1); //because the slow response of hyper_terminal
WrUTXH0('\r');
}
while(!(rUTRSTAT0 & 0x2)); //Wait until THR is empty.
//Delay(1);
WrUTXH0(data);
}
//====================================================================
void Uart_SendString(char *pt)
{
while(*pt)
Uart_SendByte(*pt++);
}
//=====================================================================
//If you don't use vsprintf(), the code size is reduced very much.
void Uart_Printf(char *fmt,...)
{
va_list ap;
char string;
va_start(ap,fmt);
vsprintf(string,fmt,ap);
Uart_SendString(string);
va_end(ap);
}
void Main(void)
{
char ch;
rGPBCON = 0x015551;
rGPBUP = 0x7ff;
rGPBDAT = 0x1e0;
rGPHCON = 0x00faaa; // 使用 UART0 功能
rGPHUP = 0x7ff;
rULCON0 = 0x3; // 设置 UART0 无奇偶校验，一位停止位， 8 位数据
rUCON0 = 0x245; //PCLK 为时钟源，接收和发送数据为查询或中断方式
rUFCON0 = 0; //
rUMCON0 = 0; //
rUBRDIV0 = 26; // 设置波特率， PCLK 为 50MHz ，波特率为 115.2kHz
while(!(rUTRSTAT0 & 0x2)); // 等待并判断发送缓存是否为空
rUTXH0 = 0xaa; // 是空，则发送 0xAA
while(1)
{
while(!(rUTRSTAT0 & 0x1)); // 等待并判断接收缓存是否准备好
ch = rURXH0; // 接收一个字节数据
while(!(rUTRSTAT0 & 0x2)); // 等待并判断发送缓存是否为空
rUTXH0 = ch; // 发送一个字节数据
switch(ch) // 根据所接收数据的不同，执行不同的程序
{
case 0x11: // 灭 LED
rGPBDAT |= 0x1e0;
break;
case 0x22: // 亮 LED
rGPBDAT &= 0x1f;
break;
case 's': // 蜂鸣器不响
rGPBDAT &= 0x1e0;
break;
case 'a': // 蜂鸣器响;
rGPBDAT |= 0x1;
break;
default: //LED 灭，蜂鸣器不响
rGPBDAT = 0x1e0;
break;
}
}
} 请问你选择的是哪个模式呀 你想用直接用就行了撒。。。
前面还写那么多干嘛？这些函数在2440lib.c里面都有 我好郁闷啊~ 兄弟 ， 你这个我复制过去为什么不行！
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