[参考译文] TLV320AIC3254EVM-K：通过外部放大器(TPA2012D2EVM)将此 EVM 与8 Ω 1.5W 扬声器连接或直接连接

感谢您的答复。 我已通过 Amp OUT+和 OUT-引脚连接了扬声器。 INR+连接到 J6线路输出连接器上的 LOR、INR-连接到 GND。 放大器板由编解码器 EVB 板5V 供电。 下面是我的设置和状态面板读数。 当 I 测量 OUTR+和 OUTR-之间的电压时、每个引脚输出大约为2.5V 它们彼此相似。

我要使用"蜂鸣器"测试扬声器。 我想以2khz 的频率产生2秒钟的蜂鸣声。 我按照文档中的说明进行了寄存器设置。 这里我提供了我使用的脚本。 我听不到任何声音。 我不确定我在这里做什么错了。 此外、如何通过此 GUI 使用波形文件来测试扬声器？ 我可以直接从电脑播放。

###############################################
# High Performance Stereo Playback
# ---------------------------------------------
# PowerTune mode PTM_P3 is used for high
# performance 16-bit audio. For PTM_P4,
# an external audio interface that provides
# 20-bit audio is required.
#
# For normal USB Audio, no hardware change
# is required.
#
# If using an external interface, SW2.4 and
# SW2.5 of the USB-ModEVM must be set to
# HI and clocks can be connected to J14 of
# the USB-ModEVM.
#
# Audio is routed to both headphone and
# line outputs.
###############################################



###############################################
# Software Reset
###############################################
#
# Select Page 0
w 30 00 00
#
# Initialize the device through software reset
w 30 01 01
#
###############################################



###############################################
# Clock Settings
# ---------------------------------------------
# The codec receives: MCLK = 11.2896 MHz,
# BLCK = 2.8224 MHz, WCLK = 44.1 kHz
###############################################
#
# Select Page 0
w 30 00 00
#
# NDAC = 1, MDAC = 2
w 30 0b 81 82
#
###############################################



###############################################
# Signal Processing Settings
###############################################
#
# Select Page 0
w 30 00 00
#
# Set the DAC Mode to PRB_P8
w 30 3c 08
#
###############################################



###############################################
# Initialize Codec
###############################################
#
# Select Page 1
w 30 00 01
#
# Disable weak AVDD in presence of external
# AVDD supply
w 30 01 08
#
# Enable Master Analog Power Control
w 30 02 00
#
# Set the input powerup time to 3.1ms (for ADC)
# w 30 47 32
#
# Set the REF charging time to 40ms
w 30 7b 01
#
###############################################



###############################################
# Playback Setup
###############################################
#
# Select Page 1
w 30 00 01
#
# De-pop
w 30 14 25
#
# Route LDAC/RDAC to HPL/HPR
w 30 0c 08 08
#
# Route LDAC/RDAC to LOL/LOR
w 30 0e 08 08
#
# Power up HPL/HPR and LOL/LOR drivers
w 30 09 3C
#
# Unmute HPL/HPR driver, 0dB Gain
w 30 10 00 00
#
# Unmute LOL/LOR driver, 0dB Gain
w 30 12 00 00
#
# Select Page 0
w 30 00 00
#
# DAC => 0dB
w 30 41 00 00
#
# Power up LDAC/RDAC
w 30 3f d6
#
# Unmute LDAC/RDAC
w 30 40 00
#
w 30 00 00 #go to page 0
w 30 49 01 #Writing Beep length to registers 73,74,75 and 30 being the Codec address.
w 30 4A 77 #73=49 in hex and so on.
w 30 4B 00 #Now writing Sine and cosine coefficients MSB first then LSB in
w 30 4C 23
w 30 4D FB #76,77,78,79
w 30 4E 7A
w 30 4F D7
w 30 48 04 #Making gain of right–2dB and making right and left channel independent
w 30 47 84 #Making gain of left channel-2dB and turning on the beep.
###############################################

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