TI中文支持网ti的工程师：
我这里有一个工程，同时要使能AIC3204的ADC和DAC，IIS总线接的是6748，这里双向通信我们之前检测是没有问题的。AIC3204电路如下
我们目前数字信号从DIN输入后，LOL和LOR有模拟信号输出。AIN-1、AIN+1模拟信号输入，但是DOUT数字信号一直没反应。我改了好几遍偏置一直没啥反应请ti的工程师看看是不是哪里配置的有问题。
void aic3204Init(void)
{
CODEC_RESET = 1;
delay_ms(2);
CODEC_RESET = 0;
//;p Reset 1# Release the reset pin
//;# RESET
aic3204_res = aic3204_Write_Reg(0x00,0X0); //WW 30, 00h, 00h; # Select register page 0
aic3204_res = aic3204_Write_Reg(0x01,0X1); //WW 30, 01h, 01h; # I2C reset
delay_ms(10);
//;# CLOCK SETTINGS
aic3204_res = aic3204_Write_Reg(0x0B,0X81); //WW 30, 0Bh, 81h; # PoWWer up the NDAC divider WWith value 1
aic3204_res = aic3204_Write_Reg(0x0C,0X82); //WW 30, 0Ch, 82h; # PoWWer up the MDAC divider WWith value 2
aic3204_res = aic3204_Write_Reg(0x0D,0X00); //WW 30, 0Dh, 00h; # Program OSR for DAC to 128 (MSB)
aic3204_res = aic3204_Write_Reg(0x0E,0X80); //WW 30, 0Eh, 80h; # Program OSR for DAC to 128 (LSB)
//12 13 14
//w 30 12h 81# Power up the NADC divider with value 1
//w 30 13h 82# Power up the MADC divider with value 2
//w 30 14h 80# Program OSR for ADC to 128
aic3204_res = aic3204_Write_Reg(0x12,0X81);
aic3204_res = aic3204_Write_Reg(0x13,0X82);
aic3204_res = aic3204_Write_Reg(0x14,0X80);
//;# DIGITAL INTERFACE
aic3204_res = aic3204_Write_Reg(0x1B,0X00); //WW 30, 1Bh, 00h; # I2S, 16-bit, BCLK and WWCLK are inputs
//;# PROCESSING BLOCK USAGE
aic3204_res = aic3204_Write_Reg(0x3C,0X08); //WW 30, 3Ch, 08h; # Select DAC processing block PRB_P8
//w 30 3D 04# Select ADC processing block PRB_R4
aic3204_res = aic3204_Write_Reg(0x3D,0X04);
//;# ANALOG POWWER SUPPLY
aic3204_res = aic3204_Write_Reg(0x00,0X01); //WW 30, 00h, 01h; # Select register page 1
aic3204_res = aic3204_Write_Reg(0x01,0X08); //WW 30, 01h, 08h; # Disable internal crude AVDD before poWWering up the internal AVDD LDO
aic3204_res = aic3204_Write_Reg(0x02,0X01); //WW 30, 02h, 01h; # Enable internal analog LDO, analog blocks poWWered
//;WW 30, 02h, 00h; # Enable internal analog LDO, analog blocks poWWered
aic3204_res = aic3204_Write_Reg(0x0A,0X40); //WW 30, 0Ah, 40h; # Common mode set to 0.75V
//;# MICPGA DELAY, REFERENCE CHARGING AND HEADPHONE DE-POP
//;WW 30, 47h, 31h; # MICPGA startup delay is 3 ms
aic3204_res = aic3204_Write_Reg(0x7B,0X01); //WW 30, 7Bh, 01H; # Reference charging time is 40 ms
//aic3204_res = aic3204_Write_Reg(0x14,0X65); //;WW 30, 14h, 65h; # HP driver poWWer-up: 50 ms soft routing step time, 5.0 time constants, 6k resistance
//;# AUDIO ROUTING
//aic3204_res = aic3204_Write_Reg(0x0C,0X08); //;WW 30, 0Ch, 08h; # HPL routing: Left channel
//aic3204_res = aic3204_Write_Reg(0x0D,0X08); //;WW 30, 0Dh, 08h; # HPR routing: Right channel
aic3204_res = aic3204_Write_Reg(0x0E,0X08); //WW 30, 0Eh, 08h; # LOL routing: Left channel
aic3204_res = aic3204_Write_Reg(0x0F,0X08); //WW 30, 0Fh, 08h; # LOR routing: Right channel
//Full-Differential Mono Mic connected to IN1L/IN1R select page 1
//w 30 34 00# No routed to Left MICPGA Positive
//w 30 36 00# No routed to Left MICPGA Negative
//w 30 37 40# IN1R is routed to Right MICPGA Positive with 10K resistance
//w 30 39 10# IN1L is routed to Right MICPGA Negative with 10K resistance
aic3204_res = aic3204_Write_Reg(0x34,0X00);
aic3204_res = aic3204_Write_Reg(0x36,0X00);
aic3204_res = aic3204_Write_Reg(0x37,0X40);
aic3204_res = aic3204_Write_Reg(0x39,0X10);
aic3204_res = aic3204_Write_Reg(0x12,0X00); //WW 30, 12h, 00h; # LOL driver is not muted
aic3204_res = aic3204_Write_Reg(0x13,0X00); //WW 30, 13h, 00h; # LOR driver is not muted
aic3204_res = aic3204_Write_Reg(0x09,0X3C); //WW 30, 09h, 3Ch; # Output Driver Power Control ALLOUT powered up
delay_ms(10);
//mov A,28h;after 18 cmds do delay 8.6ms
//call dly_lcd_timex
aic3204_res = aic3204_Write_Reg(0x00,0X00); //WW 30, 00h, 00h; # Select register page 0
aic3204_res = aic3204_Write_Reg(0x3F,0X0D6); //WW 30, 3Fh, 0D6h; #
aic3204_res = aic3204_Write_Reg(0x40,0X00); //WW 30, 40h, 00h; #
}
taoyu：
上面描述说反了，DAC模块有输出而ADC模块没有输出。
dandan shi：
回复 taoyu:
您好！请问您这个问题解决了吗？我现在在配置aic33的芯片与您的问题相同，如果您解决了，我们是否可以进行交流一下，谢谢！
taoyu：
回复 dandan shi:
年前就解决了。
dandan shi：
回复 taoyu:
请问您是怎么解决的呢？感激不尽！
taoyu：
回复 dandan shi:
我们方法比较笨，找了一个市面上带3204的无线麦克风，然后用逻辑分析仪把上电初始化要初始化的寄存器参数全部读出来了。然后一个一个去调整后来就通了。通了以后再把滤波器和增益系数做了调整。可能对你没有什么借鉴意义。用iic读寄存器就花了1天多的时间。
dandan shi：
回复 taoyu:
嗯嗯，好的，谢谢您！这样的话可以推知可能是我初始化寄存器存有问题，可以麻烦您将下的指令发我下吗？我做下参照，谢谢您！
