This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS65950 DM3730 Bluetooth Audio Route

Other Parts Discussed in Thread: TPS65950

Hello,

I'm trying to route audio form I2S(SDRR2 SDRL2)  to BT_PCM_VDX,

I read the tps65950 TRM,and set register as follow, but it`s not work.

CODEC_MODE  = 0x92
OPTION      = 0xc0
MICBIAS_CTL = 0x0
ANAMICL     = 0x0
ANAMICR     = 0x0
AVADC_CTL   = 0x0
ADCMICSEL   = 0x0
DIGMIXING   = 0x4
ATXL1PGA    = 0x0
ATXR1PGA    = 0x0
AVTXL2PGA   = 0x0
AVTXR2PGA   = 0x0
AUDIO_IF    = 0x1
VOICE_IF    = 0x0
ARXR1PGA    = 0x0
ARXL1PGA    = 0x0
ARXR2PGA    = 0x0
ARXL2PGA    = 0x0
VRXPGA      = 0x25
VSTPGA      = 0x0
VRX2ARXPGA  = 0x0
AVDAC_CTL   = 0x0
ARX2VTXPGA  = 0x2f
ARXL1_APGA_CTL = 0x0
ARXR1_APGA_CTL = 0x0
ARXL2_APGA_CTL = 0x0
ARXR2_APGA_CTL = 0x0
ATX2ARXPGA  = 0x0
BT_IF       = 0x21
BTPGA       = 0x55
BTSTPGA     = 0x0
EAR_CTL     = 0x0
HS_SEL      = 0x0
HS_GAIN_SET = 0x0
HS_POPN_SET = 0x42
PREDL_CTL   = 0x0
PREDR_CTL   = 0x0
PRECKL_CTL  = 0x0
PRECKR_CTL  = 0x0
HFL_CTL     = 0x0
HFR_CTL     = 0x0
ALC_CTL     = 0x0
ALC_SET1    = 0x0
ALC_SET2    = 0x0
BOOST_CTL   = 0x0
SOFTVOL_CTL = 0x0
DTMF_FREQSEL  = 0x13
DTMF_TONEXT1H = 0x0
DTMF_TONEXT1L = 0x0
DTMF_TONEXT2H = 0x0
DTMF_TONEXT2L = 0x0
DTMF_TONOFF   = 0x79
DTMF_WANONOFF = 0x11
I2S_RX_SCRAMBLE_H = 0x0
I2S_RX_SCRAMBLE_M = 0x0
I2S_RX_SCRAMBLE_L = 0x0
APLL_CTL      = 0x16
DTMF_CTL      = 0x0
DTMF_PGA_CTL2 = 0x44
DTMF_PGA_CTL1 = 0x69
MISC_SET_1    = 0x0
PCMBTMUX      = 0x20
RX_PATH_SEL   = 0x0
VDL_APGA_CTL  = 0x0
VIBRA_CTL     = 0x0
VIBRA_SET     = 0x0
VIBRA_PWM_SET = 0x0
ANAMIC_GAIN   = 0x0
MISC_SET_2    = 0x0 

I2S data is OK, BT use PCM_VCK,PCM_VFS is OK. PMBR1 register for BT setup (bits 7:6) is OK.

I`m not see any signal in BT.PCM.VDX

I`m not sure how to set, but i think it`s about registers DIGMIXING, RX_PATH_SEL, PCMBTMUX,

 Please help me.

Thinks alot.