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tlv320adc3101请教

问题1:参照手册设置寄存器,MCLK为16M外部输入,I2S的BCLK、WCLK及DOUT无任何信号输出。寄存器设置如下。该器件是否通电并配置主I2S寄存器0x1B的BCLK、WCLK输出就应该有时钟输出了吧?还是因为寄存器未设置正确导致?我按下面的寄存器设置了,并读取验证过,寄存器值设置是正确的。

/* 00 */ {0x00, 0x00}, // Set register Page to 0
/* 01 */ {0x01, 0x01}, // Self-clearing software reset for control register
/* 02 */ {0x04, 0x03}, // PLL_CLKIN = MCLK,CODEC_CLKIN = PLL_CLK
/* 03 */ {0x05, 0x11}, // PLL power down,PLL divider P = 1,PLL multiplier R = 1
/* 04 */ {0x06, 0x06}, // PLL multiplier J = 6
/* 05 */ {0x07, 0x00}, // PLL fractional multiplier D13–D8 DH = 0x05 D=0
/* 06 */ {0x08, 0x00}, // PLL fractional multiplier D7–D0 DL=0xA0 D=0
/* 07 */ {0x05, 0x91}, // PLL power up,PLL divider P = 1,PLL multiplier R = 1
/* 08 */ {0x12, 0x88}, // NADC clock divider is powered up,NADC clock divider = 8
/* 09 */ {0x13, 0x82}, // MADC clock divider is powered up,MADC clock divider = 2
/* 10 */ {0x14, 0x90}, // AOSR = 144
/* 11 */ {0x1B, 0x2C}, // ADC interface = I2S,ADC interface word length = 24 bits,BCLK is output,WCLK is output,3-stating of DOUT: disabled
/* 12 */ {0x35, 0x02}, // DOUT bus keeper enabled,DOUT = primary DOUT output for codec interface
/* 13 */ {0x3D, 0x01}, // Select ADC Signal Processing Block PRB_R1
/* 14 */ {0x00, 0x01}, // Set register Page to 1
/* 15 */ {0x33, 0x28}, // MICBIAS1 is powered to 2 V,MICBIAS2 is powered to 2 V
/* 16 */ {0x3B, 0x00}, // Left PGA is not muted,Left PGA gain = 0 dB
/* 17 */ {0x3C, 0x00}, // Right PGA is not muted,Right PGA gain = 0 dB
/* 18 */ {0x34, 0xF3}, // IN2L(P) Pin 0-dB setting is chosen.
/* 19 */ {0x37, 0xF3}, // IN2R(P) Pin 0-dB setting is chosen.
/* 20 */ {0x00, 0x00}, // Set register Page to 0
/* 21 */ {0x51, 0xC2}, // Left-channel ADC is powered up,Right-channel ADC is powered up,ADC channel volume control soft-stepping is disabled
/* 22 */ {0x52, 0x00}, // Left ADC channel not muted,Left ADC channel fine gain = 0 dB,Right ADC channel not muted,Left ADC channel fine gain = 0 dB

问题二:手册上说miniDSP有18个默认处理方式,是不是说不需要Purepath studio软件来写DSP也能正常输出I2S时钟信号?

问题三:Purepath studio软件申请了好些天了,一直状态为Awaiting TI,不是说24~48小时会有答复吗?即不拒绝也不同意,等得心急啊。板都焊好了,就是没得用得软件哈。

Kailyn Chen:

回复 Kailyn Chen:

另外,如果您这边申请Purepath有问题的话,我这边可以帮您再确认下, 所以有问题的话及时反馈。

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