Hi,
We're developing a TAS5719 driver for the linux 2.6.37 kernel from the am3517-evm-sdk-05.05.01.00. Our custom board has a
AM3517 sitara. The TAS5719 is a slave I2S device connected to the Sitara McBSP2 acting like the master. The wiring is:
McBSP2_FSX to LRCLK, McBSP2_CLKX to SCLK, McBSP2_DX to SDIN and McBSP2_DR to MCLK.
Now we've the OMAP is generating a 1.548MHz on SCLK, from the sitara 96MHz div 62 in order to play a 48KHz, 16 bits and stereo sample.
On the scope we can see the SCLK, the SDIN and LRCLK on the I2S. They are ok. But I can't hear anything on the out_a/out_b and out_c/out_d
differential speakers output. There is signal in the output but nothing valid. Do we need a valid MCLK signal or it can be autogenerated internally
on the TAS5719??
Here the main TAS5719 registers when the sound is playing. Any value is wrong???
[ 56.030487] tas5719_read(1): reg 00 value 0000006c
[ 56.036590] tas5719_read(1): reg 01 value 000000c1
[ 56.042022] tas5719_read(1): reg 02 value 00000000
[ 56.048522] tas5719_read(1): reg 03 value 000000a0
[ 56.054595] tas5719_read(1): reg 04 value 00000003
[ 56.060699] tas5719_read(1): reg 05 value 00000000
[ 56.066131] tas5719_read(1): reg 06 value 00000000
[ 56.072631] tas5719_read(2): reg 07 value 00000154
[ 56.078735] tas5719_read(2): reg 08 value 00000068
[ 56.084838] tas5719_read(2): reg 09 value 00000073
[ 56.090911] tas5719_read(2): reg 0A value 000000c0
[ 56.096343] tas5719_read(1): reg 0E value 000000f0
[ 56.102844] tas5719_read(1): reg 10 value 00000001
[ 56.108917] tas5719_read(1): reg 11 value 000000ac
[ 56.115020] tas5719_read(1): reg 12 value 00000054
[ 56.120452] tas5719_read(1): reg 13 value 000000ac
[ 56.126922] tas5719_read(1): reg 14 value 00000054
[ 56.133026] tas5719_read(1): reg 19 value 00000030
[ 56.139099] tas5719_read(1): reg 1A value 00000008
[ 56.144622] tas5719_read(1): reg 1B value 000000c0
[ 56.150054] tas5719_read(1): reg 1C value 00000057
[ 56.157165] tas5719_read(4): reg 20 value 00017772
[ 56.163299] tas5719_read(4): reg 21 value 00004303
[ 56.169433] tas5719_read(4): reg 25 value 01021345
Any help is welcome!
Jorge
