STM8 使用printf报错

House1989

STM8 使用printf报错 [复制链接]

使用STVD编译器，重定义printf函数后，使用的时候报错
下面是程序
#define __GNUC__

#ifdef __GNUC__
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif  

PUTCHAR_PROTOTYPE  
{  
  /* Write a character to the USART */  
//  USART_SendData8(EVAL_COM1, c);  
  /* Loop until the end of transmission */  
//  while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET);  
  UART1->DR=(ch);
  /* Loop until the end of transmission */
   while (!(UART1->SR & UART1_FLAG_TXE));

  return (ch);  
}
下面是报错内容

#error clnk Debug\spwm1.lkf:1 symbol _memchr not defined ((C:\Program Files (x86)\COSMIC\CXSTM8_32K\Lib\libfs0.sm8)dtog.o )
#error clnk Debug\spwm1.lkf:1 symbol _strlen not defined ((C:\Program Files (x86)\COSMIC\CXSTM8_32K\Lib\libfs0.sm8)cprint.o )
#error clnk Debug\spwm1.lkf:1 symbol _toupper not defined ((C:\Program Files (x86)\COSMIC\CXSTM8_32K\Lib\libfs0.sm8)cprint.o )
#error clnk Debug\spwm1.lkf:1 symbol _putchar not defined ((C:\Program Files (x86)\COSMIC\CXSTM8_32K\Lib\libfs0.sm8)cprint.o )
#error clnk Debug\spwm1.lkf:1 symbol __udiv not defined ((C:\Program Files (x86)\COSMIC\CXSTM8_32K\Lib\libfs0.sm8)dtoe.o (C:\Program Files (x86)\COSMIC\CXSTM8_32K\Lib\libfs0.sm8)cnorm.o )
#error clnk Debug\spwm1.lkf:1 symbol __itob not defined ((C:\Program Files (x86)\COSMIC\CXSTM8_32K\Lib\libfs0.sm8)cprint.o )
#error clnk Debug\spwm1.lkf:1 symbol __ltob not defined ((C:\Program Files (x86)\COSMIC\CXSTM8_32K\Lib\libfs0.sm8)cprint.o )
The command: "clnk -l"C:\Program Files (x86)\COSMIC\CXSTM8_32K\Lib" -l"C:\Program Files (x86)\COSMIC\CXSTM8_32K\Lib"  -o Debug\spwm1.sm8 -mDebug\spwm1.map Debug\spwm1.lkf " has failed, the returned value is: 1
exit code=1.
求大神帮助

House1989

虽然没有人回复，但是我还是解决了，谢天谢地

熊猫大叔的胸毛

没有重定向把