PCM6340 for slave, DSP AK7739 for master
AK7739 produces 12.288MHz BICK, 48KHz FSYNC (TDM8, 32bits)
Problem description：
- After normal power on, pcm6340 reads the 0x15 register display and cannot detect valid FS-RATE and FS-RATIO. At this time, there is no signal when measuring SDOUT
- After the transducer probe (metal wire) contacts the test point of BCLK, the 0x15 register changes to a normal 0x48 (48KHz, 256fs), and there is a signal when measuring SDOU
The attachment is the schematic diagram of PCM6340
