STM8 使用printf报错

2019-03-23 17:32发布

站内问答 / STM32/STM8
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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 Debugspwm1.lkf:1 symbol _memchr not defined ((C:Program Files (x86)COSMICCXSTM8_32KLiblibfs0.sm8)dtog.o )
#error clnk Debugspwm1.lkf:1 symbol _strlen not defined ((C:Program Files (x86)COSMICCXSTM8_32KLiblibfs0.sm8)cprint.o )
#error clnk Debugspwm1.lkf:1 symbol _toupper not defined ((C:Program Files (x86)COSMICCXSTM8_32KLiblibfs0.sm8)cprint.o )
#error clnk Debugspwm1.lkf:1 symbol _putchar not defined ((C:Program Files (x86)COSMICCXSTM8_32KLiblibfs0.sm8)cprint.o )
#error clnk Debugspwm1.lkf:1 symbol __udiv not defined ((C:Program Files (x86)COSMICCXSTM8_32KLiblibfs0.sm8)dtoe.o (C:Program Files (x86)COSMICCXSTM8_32KLiblibfs0.sm8)cnorm.o )
#error clnk Debugspwm1.lkf:1 symbol __itob not defined ((C:Program Files (x86)COSMICCXSTM8_32KLiblibfs0.sm8)cprint.o )
#error clnk Debugspwm1.lkf:1 symbol __ltob not defined ((C:Program Files (x86)COSMICCXSTM8_32KLiblibfs0.sm8)cprint.o )
The command: "clnk -l"C:Program Files (x86)COSMICCXSTM8_32KLib" -l"C:Program Files (x86)COSMICCXSTM8_32KLib"  -o Debugspwm1.sm8 -mDebugspwm1.map Debugspwm1.lkf " has failed, the returned value is: 1
exit code=1.
求大神帮助
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2条回答
House1989
1楼-- · 2019-03-23 19:25
/ 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
2楼-- · 2019-03-23 22:59
没有重定向把

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