Other Parts Discussed in Thread: TAS2781
Tool/software:
Hi TI:
I'm porting the tas2780 driver.
Currently, We can see below tinymix command and can dump register
5172 INT 1 tas2780-amp-gain-volume 20
5174 INT 1 tas2780-digital-volume 201
5175 INT 1 TASDEVICE Profile id 0
$ echo>fwload
[ 107.447594] tasdevice-codec 1-0038: fwload: count = 1
[ 107.447623] tasdevice-codec 1-0038: fw tas2780-1amp-reg.bin already loaded
Q1:
I followed the gen bin tool documentation and used the default tas2780-1amp-reg.json to generate the bin file.
Measure the input of the speaker
Are below waveform are correct?
dump register
lahaina:/sys/bus/i2c/devices/1-0038 # cat regdump
i2c-addr: 0x38
DeviceID: 0x00
Chn0B0x00P0x00R0x00:0x00
Chn0B0x00P0x00R0x01:0x00
Chn0B0x00P0x00R0x02:0x02
Chn0B0x00P0x00R0x03:0x28
Chn0B0x00P0x00R0x04:0x21
Chn0B0x00P0x00R0x05:0x41
Chn0B0x00P0x00R0x06:0x00
Chn0B0x00P0x00R0x07:0x20
Chn0B0x00P0x00R0x08:0x09
Chn0B0x00P0x00R0x09:0x02
Chn0B0x00P0x00R0x0a:0x0a
Chn0B0x00P0x00R0x0b:0x80
Chn0B0x00P0x00R0x0c:0x10
Chn0B0x00P0x00R0x0d:0x01
Chn0B0x00P0x00R0x0e:0x00
Chn0B0x00P0x00R0x0f:0x00
Chn0B0x00P0x00R0x10:0x04
Chn0B0x00P0x00R0x11:0x05
Chn0B0x00P0x00R0x12:0x06
Chn0B0x00P0x00R0x13:0x08
Chn0B0x00P0x00R0x14:0x0a
Chn0B0x00P0x00R0x15:0x00
Chn0B0x00P0x00R0x16:0x40
Chn0B0x00P0x00R0x17:0x0c
Chn0B0x00P0x00R0x18:0x00
Chn0B0x00P0x00R0x19:0x0d
Chn0B0x00P0x00R0x1a:0x00
Chn0B0x00P0x00R0x1b:0x62
Chn0B0x00P0x00R0x1c:0x32
Chn0B0x00P0x00R0x1d:0x40
Chn0B0x00P0x00R0x1e:0x32
Chn0B0x00P0x00R0x1f:0x02
Chn0B0x00P0x00R0x20:0x06
Chn0B0x00P0x00R0x21:0x2c
Chn0B0x00P0x00R0x22:0x4c
Chn0B0x00P0x00R0x23:0x20
Chn0B0x00P0x00R0x24:0x02
Chn0B0x00P0x00R0x25:0x06
Chn0B0x00P0x00R0x26:0x32
Chn0B0x00P0x00R0x27:0x46
Chn0B0x00P0x00R0x28:0x20
Chn0B0x00P0x00R0x29:0x02
Chn0B0x00P0x00R0x2a:0x06
Chn0B0x00P0x00R0x2b:0x38
Chn0B0x00P0x00R0x2c:0x40
Chn0B0x00P0x00R0x2d:0x20
Chn0B0x00P0x00R0x2e:0x02
Chn0B0x00P0x00R0x2f:0x06
Chn0B0x00P0x00R0x30:0x3e
Chn0B0x00P0x00R0x31:0x37
Chn0B0x00P0x00R0x32:0x20
Chn0B0x00P0x00R0x33:0xff
Chn0B0x00P0x00R0x34:0xe6
Chn0B0x00P0x00R0x35:0xbd
Chn0B0x00P0x00R0x36:0xad
Chn0B0x00P0x00R0x37:0xa8
Chn0B0x00P0x00R0x38:0x03
Chn0B0x00P0x00R0x39:0xff
Chn0B0x00P0x00R0x3a:0xff
Chn0B0x00P0x00R0x3b:0xfc
Chn0B0x00P0x00R0x3c:0xbf
Chn0B0x00P0x00R0x3d:0xdf
Chn0B0x00P0x00R0x3e:0xff
Chn0B0x00P0x00R0x3f:0xff
Chn0B0x00P0x00R0x40:0xf6
Chn0B0x00P0x00R0x41:0x00
Chn0B0x00P0x00R0x42:0x00
Chn0B0x00P0x00R0x43:0x00
Chn0B0x00P0x00R0x44:0x00
Chn0B0x00P0x00R0x45:0x80
Chn0B0x00P0x00R0x46:0x00
Chn0B0x00P0x00R0x47:0x00
Chn0B0x00P0x00R0x48:0x00
Chn0B0x00P0x00R0x49:0x04
Chn0B0x00P0x00R0x4a:0x02
Chn0B0x00P0x00R0x4b:0x19
Chn0B0x00P0x00R0x4c:0x80
Chn0B0x00P0x00R0x4d:0x00
Chn0B0x00P0x00R0x4e:0x1c
Chn0B0x00P0x00R0x4f:0x00
Chn0B0x00P0x00R0x50:0x20
Chn0B0x00P0x00R0x51:0x07
Chn0B0x00P0x00R0x52:0x24
Chn0B0x00P0x00R0x53:0x50
Chn0B0x00P0x00R0x54:0x1c
Chn0B0x00P0x00R0x55:0xa7
Chn0B0x00P0x00R0x56:0x7f
Chn0B0x00P0x00R0x57:0xff
Chn0B0x00P0x00R0x58:0xc0
Chn0B0x00P0x00R0x59:0xc8
Chn0B0x00P0x00R0x5a:0x40
Chn0B0x00P0x00R0x5b:0x88
Chn0B0x00P0x00R0x5c:0xd9
Chn0B0x00P0x00R0x5d:0x80
Chn0B0x00P0x00R0x5e:0x00
Chn0B0x00P0x00R0x5f:0xe0
Chn0B0x00P0x00R0x60:0x0d
Chn0B0x00P0x00R0x61:0x08
Chn0B0x00P0x00R0x62:0x3c
Chn0B0x00P0x00R0x63:0x48
Chn0B0x00P0x00R0x64:0x84
Chn0B0x00P0x00R0x65:0x08
Chn0B0x00P0x00R0x66:0xb2
Chn0B0x00P0x00R0x67:0x00
Chn0B0x00P0x00R0x68:0x24
Chn0B0x00P0x00R0x69:0x09
Chn0B0x00P0x00R0x6a:0x12
Chn0B0x00P0x00R0x6b:0x43
Chn0B0x00P0x00R0x6c:0x00
Chn0B0x00P0x00R0x6d:0x00
Chn0B0x00P0x00R0x6e:0x1a
Chn0B0x00P0x00R0x6f:0x00
Chn0B0x00P0x00R0x70:0x96
Chn0B0x00P0x00R0x71:0x02
Chn0B0x00P0x00R0x72:0x00
Chn0B0x00P0x00R0x73:0x00
Chn0B0x00P0x00R0x74:0x00
Chn0B0x00P0x00R0x75:0x00
Chn0B0x00P0x00R0x76:0x00
Chn0B0x00P0x00R0x77:0x00
Chn0B0x00P0x00R0x78:0x00
Chn0B0x00P0x00R0x79:0x00
Chn0B0x00P0x00R0x7a:0xc0
Chn0B0x00P0x00R0x7b:0x00
Chn0B0x00P0x00R0x7c:0x00
Chn0B0x00P0x00R0x7d:0x10
Chn0B0x00P0x00R0x7e:0x18
Chn0B0x00P0x00R0x7f:0x00
======caught smartpa reg end ======
Q2:
In our design
What register do I need to set?
CHNL_0 (page=0x00 address=0x03) bit7~6:10b
TDM_CFG0 (page=0x00 address=0x08) bit5:0b
TDM_CFG0 (page=0x00 address=0x08) bit4:0b
TDM_CFG0 (page=0x00 address=0x08) bit3~1:100b
TDM_CFG2 (page=0x00 address=0x0A) bit5~4:?
TDM_CFG2 (page=0x00 address=0x0A) bit3~2:?
TDM_CFG2 (page=0x00 address=0x0A) bit1~0:?
TDM_CFG3 (page=0x00 address=0x0C) bit7~4:? // We use i2c, no use TDM
TDM_CFG3 (page=0x00 address=0x0C) bit3~0:? // We use i2c, no use TDM
TDM_CFG12 (page=0x00 address=0x16) bit7:1b
TDM_CFG12 (page=0x00 address=0x16) bit6:1b
TDM_CFG12 (page=0x00 address=0x16) bit5~0:?
CLOCK_CFG (page=0x00 address=0x60) bit5~2:100b // our hardware, sbclk:3.068Mhz, Fsync:48khz
and other register ...
The project has three amps ic on the same i2c bus.
What specs do I need to provide?
Please reference below schematic
Q3:
In generate bin file tool, I don't find TAS2780.
What type of device do I need to select?
Q4:
echo chn 0xBK 0xPG 0xRG 0xXX > reg
What's chn? Is it i2c channel?
Our tas2780 is in /sys/bus/i2c/devices/1-0038
Is the chn parameter 1?
thanks
