普中科技F28335开发板的TLV320AIC23 芯片初始化

准音频算法工程师 发表于 2024-8-24 22:53

本帖最后由准音频算法工程师于 2024-8-25 11:31 编辑

我不懂这段商家提供的代码：

void main()

{ 
AIC23Write(0x00,0x00); 
    Delay(100); 
    AIC23Write(0x02,0x00); 
    Delay(100); 
    AIC23Write(0x04,0x7f); 
    Delay(100); 
    AIC23Write(0x06,0x7f); 
    Delay(100); 
    AIC23Write(0x08,0x14); 
    Delay(100); 
    AIC23Write(0x0A,0x00); 
    Delay(100); 
    AIC23Write(0x0C,0x00); 
    Delay(100); 
    AIC23Write(0x0E,0x43); 
    Delay(100); 
    AIC23Write(0x10,0x23); 
    Delay(100); 
    AIC23Write(0x12,0x01); 
    Delay(100);        //AIC23Init 
}

 

Uint16 AIC23Write(int Address,int Data) 
{

 
   if (I2caRegs.I2CMDR.bit.STP == 1) 
   { 
      return I2C_STP_NOT_READY_ERROR; 
   }

   // Setup slave address 
   I2caRegs.I2CSAR = 0x1A;

   // Check if bus busy 
   if (I2caRegs.I2CSTR.bit.BB == 1) 
   { 
      return I2C_BUS_BUSY_ERROR; 
   }

   // Setup number of bytes to send 
   // MsgBuffer + Address 
   I2caRegs.I2CCNT = 2; 
   I2caRegs.I2CDXR = Address; 
   I2caRegs.I2CDXR = Data; 
   // Send start as master transmitter 
   I2caRegs.I2CMDR.all = 0x6E20; 
   return I2C_SUCCESS;

}

 
根据注释，应该就是TLV320AIC23 芯片的初始化代码，但是我不是很能理解其中的含义。对照芯片资料的寄存器映射，发现不能和代码一一对应。比如AIC23Write(0x0A,0x00); 0x0A对应的二进制是1010，并不能在寄存器映射中找到这样的地址。 
噢噢，我明白了。地址只有7位，是我输入16进制转2进制的高七位。原来如此，这下代码能和寄存器地址一一对应了。

tagetage 发表于 2024-8-25 10:17

<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial"> AIC23Write(0x00,0x1f);//左声道输入音量<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        Delay(100);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                  AIC23Write(0x02,0x1f);//右声道输入音量<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                  Delay(100);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        AIC23Write(0x04,0xBf);//左声道输出音量<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        Delay(100);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                  AIC23Write(0x06,0xBf);//右声道输出音量<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        Delay(100);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        AIC23Write(0x08,0x12);//DAC选择，lin输入//AIC23Write(0x08,0x14);//DAC选择，MIC输入<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        Delay(100);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                  AIC23Write(0x0A,0x00);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        Delay(100);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        AIC23Write(0x0C,0x00);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        Delay(100);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                       AIC23Write(0x0E,0x43);//AIC23Write(0x0E,0x43);//数字音频接口格式控制，AIC23主模式，dsp初始化，转换比特值设定00即：16bit--》96dB<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        Delay(100);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                       AIC23Write(0x10,0x23);//AIC23Write(0x10,0x23);//设置采样率为16khz；USB模式下时钟为12mhz，采样率为12/272=44.1Khz<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        Delay(100);<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                  AIC23Write(0x12,0x01);//激活标志<br style="overflow-wrap:break-word; color:#333333; font-family:微软雅黑; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; font-size:16px; color:#333333; font-family:微软雅黑; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">                        Delay(100);                //AIC23Init

tagetage 发表于 2024-8-25 10:24

你找找有没有官方的例程吧。。

准音频算法工程师 发表于 2024-8-25 10:30

tagetage 发表于 2024-8-25 10:24
你找找有没有官方的例程吧。。

我去官网找了，好像没有例程<img height="53" src="https://bbs.eeworld.com.cn/static/editor/plugins/hkemoji/sticker/facebook/sad.gif" width="54" />

准音频算法工程师 发表于 2024-8-25 10:32

tagetage 发表于 2024-8-25 10:17
 AIC23Write(0x00,0x1f);//左声道输入音量
            &n ...

AIC23Write(0x02,0x1f);//右声道输入音量 
右声道输入音量对应的地址不是0x01么？

准音频算法工程师 发表于 2024-8-25 11:18

tagetage 发表于 2024-8-25 10:17
 AIC23Write(0x00,0x1f);//左声道输入音量
            &n ...

噢噢，我明白了。地址只有7位，是我输入16进制转2进制的高七位。原来如此，这下我能理解代码是什么意思了，谢谢你

准音频算法工程师 发表于 2024-8-25 11:18

准音频算法工程师发表于 2024-8-25 10:32
AIC23Write(0x02,0x1f);//右声道输入音量
右声道输入音量对应的地址不是0x01么？

噢噢，我明白了。地址只有7位，是我输入16进制转2进制的高七位。原来如此，这下我能理解代码是什么意思了，谢谢你

准音频算法工程师 发表于 2024-8-25 11:18

噢噢，我明白了。地址只有7位，是我输入16进制转2进制的高七位。原来如此，这下我能理解代码是什么意思了。

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普中科技F28335开发板的TLV320AIC23 芯片初始化