We use your EVM board which can work well in slave or master TDM.
But now factory has produced formal boards.
There is hardware difference：
1)EVM some power is use 3.3v like AVDD,but our board all power use 1.8v
2)EVM use analog MIC，and we use 8 DMIC.
According to the document tlv320adc3140.pdf, i config following regs:
0x02 0x01 // power
0x3c 0x40 //mic setting
0x22 0x41 //GPO setting
0x41 0x48 // default 48K 12.288M
0x2b 0x45 //GPi setting
Now the DMIC can get 3M CLK and output data.
But record data is NULL,i think ADC output data have problem.
ADC maybe output null data.
Please help check it.