我写了一段I2C的程序,如下(其中的一部分):<br /> FSR = &TRISC;<br /> #asm<br /> bsf _INDF,SDA<br /> goto $+1<br /> goto $+1<br /> goto $+1<br /> goto $+1<br /> btfss _PORT_I2C,SDA<br /> goto $+1 <br /><br /> bsf _INDF,SCL<br /> goto $+1<br /> goto $+1<br /> goto $+1<br /> goto $+1<br /> btfss _PORT_I2C,SCL<br /> goto $+1 <br /> <br /> bcf _INDF,SDA<br /> goto $+1<br /> goto $+1<br /> goto $+1<br /> goto $+1<br /><br /> bcf _INDF,SCL<br /> goto $+1<br /> goto $+1<br /> goto $+1<br /> goto $+1<br /> #endasm <br />但是编译提示<br />“<br />Error[000] E:MCUedit-GPICDY05AHL6024.C 75 : undefined symbol _INDF<br />Error[000] E:MCUedit-GPICDY05AHL6024.C 80 : undefined symbol _PORT_I2C<br />“<br /><br />希望那个大虾可以指点一下,谢谢 |
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