Hello, I'm working with the EVAL-AD2428WB1BZ which is an evaluation board for A2B.
The A2B slave generates I2S signal which has 48K / 16bit / Stereo parameters and I've configured the registers of ADAU1761 AMP IC, but it doesn't sound anything to the HP out.
The BCLK Source is from A2B IC(AD2428) with 12.288Mhz Freq. and I've configured below registers of the ADAU1761:
//PLL LOCK Acquire
0x4002:0x4007 = 0x00 0x00 0x00 0x00 0x20 0x01
//Check PLL Locking and I've checked the 0x4007 is set to 0x03.
//CORE CLOCK ENABLE from PLL
0x4000 = 0x09
//SERIAL CTRL with pulse not 50% duty cycle.
0x4015 = 0x20
//SERIAL TO DAC
0x40F2 = 0x01
//DAC Enable
0x402A = 0x03
//MIXER 3&4 Enable
0x401C = 0x21
0x401E = 0x41
//HP OUT Enable
0x4023 = 0xF7
0x4024 = 0xF7
Here is the register dump of the ADAU1761 started from 0x4000;
09 00 00 00 00 00 20 03 00 00 00 00 00 10 00 00
00 00 00 00 00 20 00 00 00 00 00 00 21 00 41 00
00 00 00 F7 F7 00 00 00 00 00 03 00 00 AA 00 AA
00 0A 3F 3F 1F 00 03 F0 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 10 00 00 01 00
00 00 00 04 00 00 01 00 00 10 00 01 00 00 00 00
00 00 01 00 00 00 00 00 00 00 00
Is there anything I need to configure more ?