Hi,
We are planning to use TI codec TLV320AIC3204 with our Qualcomm 820 based custom board, but due to some problem capture is not working with current configuration. Data captured are either all zero(when MCLK is applied) or some garbage(When Mclk is not applied) and not able to play.
We are using TLV320AIC3204 EVM for initial verification
We are using TI coded in slave mode with following clock applied on capture.
MCLK - 24 MHz (Generated externally)
BCLK - 1.53 MHz (Generated by 820 board)
WCLK - 48 KHz (Generated by 820 board)
We are capturing using onboard MIC(IN3 line) and all W1 to W8 jumpers are set to their default position.
Following is our I2C register configuration for capture.
Page 0
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 00 00 50 00 00 11 04 00 00 00 00 01 01 00 80 02 ..P..??....??.??
10: 00 08 01 01 80 01 00 04 00 00 01 00 00 00 01 31 .?????.?..?...?1
20: 02 0c 00 00 44 00 00 00 00 00 00 00 00 00 00 00 ??..D...........
30: 00 00 00 00 04 02 03 02 02 00 00 00 01 01 00 14 ....?????...??.?
40: 0c 00 00 00 6f 38 00 00 00 00 00 ee 10 d8 7e e3 ?...o8.....???~?
50: 00 00 00 10 10 00 80 00 0a 00 00 00 00 00 00 00 ...??.?.?.......
60: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ?...............
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Page 1
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 01 08 01 00 00 00 00 00 00 00 00 10 00 00 00 00 ???........?....
10: 40 40 40 40 00 00 00 00 00 00 00 00 00 00 00 00 @@@@............
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
30: 00 00 00 40 04 00 04 00 00 00 00 46 46 00 00 00 ...@?.?....FF...
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
We are facing following two problems.
1. When 24MHz MCLK is applied
On capturing audio using "tinycap" utility, dumped file contain data as all zero. I2C command return all register as XX after capture started and remains as it is until next reboot.
2. When 24MHz MCLK is removed
Capture show some data in file, but trying to play that file using "tinyplay" utility show error message "Error: '/data/rec.wav' is not a riff/wave file".
In both above case if I check DIN/DOUT test pin there is no significant voltage change when capture is started. Voltage remains around 400-800 mV.
Thanks,
Pratik
