標(biāo)題: iic總線發(fā)送和接收數(shù)據(jù)的這段程序有沒(méi)有問(wèn)題啊 [打印本頁(yè)]
作者: xxxxx111    時(shí)間: 2015-5-26 21:59
標(biāo)題: iic總線發(fā)送和接收數(shù)據(jù)的這段程序有沒(méi)有問(wèn)題啊
uchar Recstring(uchar slave,uchar subaddr,uchar *buffer,uchar n)
{
uchar i;
start();
if(!sendbyte(slave)) return 0;
if(!sendbyte(subaddr)) return 0;
start();
if(!sendbyte(slave+1)) return 0;
for(i=0;i<n-1;i++)
  {
  buffer=recbyte();
ack();
  }
buffer[n-1]=recbyte();
noack();
stop();
return 1;
}

uchar Sendstring(uchar slave,uchar subaddr,uchar *buffer,uchar n)
{
uchar i;
start();
if(!sendbyte(slave)) return 0;
if(!sendbyte(subaddr)) return 0;
for(i=0;i<n;i++)
{
if(!sendbyte(buffer)) return 0;
}
stop();
return 1;
}



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