Tool/software:
Hi, I have the codec successfully decoding a 16 bit Philips i2S @44100kHz stream with DAC & audio bypass on AIN1M going to single ended OUT1P (mono) or OUT1P / OUT1M (stereo)
Mono output works fine but I get a lot of background noise when in stereo when the clocks start up ? Basically unusable in stereo at present.
Other issue is I can control the DAC volume but unsure how to control the audio bypass volume. Tried several Mixer coefficient registers but no luck.
Here's my setup after reset & wakeup.
REG_B0P0_PASI_CFG0 0x1a = 0x40 - Philips 16 bit
REG_B0P0_OUT1x_CFG0 0x64 = 0x68 mono / 0x64 stereo - Input from both DAC signal chain and Analog bypass path
REG_B0P0_CH_EN 0x76 = 0x08 mono / 0x0c stereo (also tried with 0xc8 /0xcc)
REG_B0P0_PWR_CFG 0x78 = 0x40 - enable DACS
Page 1 - Reg 0x2C - tried 0x40, 0x60, 0x70 to enable DAC, side chan & ADC mixers
Page 0 Reg 0x67 - Can set DAC volume OK
Tried to set analog bypass volume with page 17 reg 0x48, 0x4A, 0x50, 0x52 - no luck - can these be changed while device is running ?
Is it possible to control the aux in volume via the bypass path or do I need to use the ADC path?
Rgds
Jon
