只能在D8=0的时候才能写入，一旦D8=1数据就写不进去，<br /><br />比如0xfeff能写进去，但是0XFFFF就写不了。<br /><br />程序是:<br /><br />void WriteDAC(uint dat)<br />{<br />Start();<br />WriteByte(0x98);<br />if(ReceiveAck())WriteByte(0x10);<br />if(ReceiveAck())WriteByte(dat/256);<br />if(ReceiveAck())WriteByte(dat%256);<br /> Delay(500);<br /> Stop(); <br /> <br />}<br /><br />请大家帮我看看<br /><br /> 电路图是 <br /> |
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楼主
