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AVR (原ourAVR.com) 技术论坛 -> <a href="javascript:history.go(-1)" class="tt4">搜索主题:CS5532</a> -> 关于cs5532的初始化问题
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<span class="f06"><font color="#ffffff">贴子主题：关于cs5532的初始化问题</font></span>
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<span class="f06"><font color="#444444">相关链接:</font>
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<font color="#000000">在前面的一个帖子里面看到有位大虾关于cs5532的一段程序 其中有段不是很明白请大家指点。
<br>程序如下：
<br>const unsigned char ADInitData[35]=
<br> {0x41,
<br> 0xfe,0x00,0x00,0x00, //通道0
<br> 0xfe,0x00,0x00,0x00, //通道1
<br> 0xfe,0x00,0x00,0x00, //通道2
<br> 0xfe,0x00,0x00,0x00, //通道3
<br> 0x45,
//设置所有通道设置寄存器
<br> 0x31,0xc0,0x31,0xc0,
//0x31：12.5Hz,通道1（1、2脚）
<br> 0x31,0xc0,0x31,0xc0,
//0x71，通道2（19、20脚）
<br> 0x31,0xc0,0x31,0xc0,
<br> 0x31,0xc0,0x31,0xc0,
<br> 0xc0}; //执行多路连续转换
<br>const unsigned char ADResetData[6]=
<br> {0xfe,0x03,0x20,0x00,0x00,0x00}; //配置寄存器RS位置1，AD复位
<br>//cs5532操作IO延时
<br>void AD_delay(void)
<br>{
<br>}
<br>//cs5532写寄存器
<br>void AD_write(unsigned char byte)
<br>{
<br> unsigned char i,data;
<br> data=byte;
<br> for(i=0;i<8;i++)
<br> {
<br> if((data&0x80)==0x80) PORTB|=(1<<AD_SDI);
<br> else PORTB&=~(1<<AD_SDI);
<br> AD_delay();
<br> PORTD|=(1<<AD_SCLK);//sclk=1
<br> AD_delay();
<br> PORTD&=~(1<<AD_SCLK);//sclk=0
<br> AD_delay();
<br> data<<=1;
<br> }
<br>}
<br>//cs5532读寄存器
<br>unsigned char AD_read(void)
<br>{
<br> unsigned char i,data=0;
<br> PORTD&=~(1<<AD_SCLK);//sclk=0
<br> AD_delay();
<br> for(i=0;i<8;i++)
<br> {
<br> data<<=1;
<br> if(((PIND>>AD_SDO)&0x01)==0x01) data|=0x01;
<br> AD_delay();
<br> PORTD|=(1<<AD_SCLK);//sclk=1
<br> AD_delay();
<br> PORTD&=~(1<<AD_SCLK);//sclk=0
<br> AD_delay();
<br> }
<br> return(data);
<br>}
<br>//初始化cs5532
<br>void Init5532(void)
<br>{
<br> unsigned char i,data=0;
<br> for(i=0;i<15;i++)
AD_write(0xff);
//初始化序列
<br> for(i=0;i<6;i++)
AD_write(ADResetData[i]); //复位
cs5532
<br> while(data!=0x10) //等待AD复位
<br> {
<br>
AD_write(0x0b); //读配置寄存器
<br> data=AD_read();
<br> AD_read();
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