Tool/software:
I am trying to generate a tone on an 8-ohm speaker using ESP32 with I2S. Working conditions:
- SAIF: I²S
- 16-Bit Data, I2S_SLOT_BIT_WIDTH_32BIT
- RCLK = 48 kHz
- BCLK = 3.072 MHz
- MCLK = BCLK
But I was not able to get any audio and the fault register always returns bit 3 as active. The faultz pin is always high. However, I didn't find anything in the datasheet that could help. Does anyone have any idea what might be happening? Here is the I2S configuration.
#define I2S_STD_MSB_SLOT_TAS_CONFIG(bits_per_sample, mono_or_stereo) \
{ \
.data_bit_width = bits_per_sample, \
.slot_bit_width = I2S_SLOT_BIT_WIDTH_32BIT, \
.slot_mode = mono_or_stereo, \
.slot_mask = I2S_STD_SLOT_BOTH, \
.ws_width = bits_per_sample * 2, \
.ws_pol = false, \
.bit_shift = false, \
.left_align = true, \
.big_endian = false, \
.bit_order_lsb = false \
}
and configuration of tas5720 i2c
TAS5720_init(&tas, I2C_NUM_0, I2C_DEVICE_ADDR, true);
TAS5720_mute(&tas, true);
TAS5720_setSerialAudioInterfaceFormat(&tas, SAI_I2S);
TAS5720_setChannelSelection(&tas, RIGHT);
TAS5720_setAnalogGain(&tas, GAIN_25_DBV);
TAS5720_setDigitalBoost(&tas, DIGITAL_BOOST_6DB);
TAS5720_setVolume(&tas, 255, 255);
TAS5720_mute(&tas, false);
TAS5720_setShutdown(&tas, true);
TAS5720_setPWMRate(&tas, RATE_16_LRCK);
