Other Parts Discussed in Thread: PCM3070,
Dear TI,
Hello, I tried to configure PCM3070 by using the I2C command file.
I uploaded the file using the Purepath Studio Mini DSP Meomory Tool.
On PCM3070RHBEVM-K, I connect the audio input to J2 IN1L, and output to LOL.
The result is the audio output does not come out (I tap with oscilloscop). Can you help me find the cause? is there something wrong? Please your advice.
* Attached I2C command file
Thanks and best regards,
Agung
5618.Biquad_filter_example.txt
############################################### # High Performance Stereo Recording # --------------------------------------------- # PowerTune mode PTM_R4 is used for high # performance 16-bit audio. # # 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. # # IN1L/R is routed to the LADC/RADC in a # single-ended manner. ############################################### ############################################### # 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 # # NADC = 1, MADC = 2 w 30 12 81 82 # ############################################### ############################################### # Signal Processing Settings ############################################### # # Select Page 0 w 30 00 00 # # Set the ADC Mode to PRB_P1 w 30 3d 01 # ############################################### ############################################### # 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 # # Select ADC PTM_R4 w 30 3d 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 # ############################################### ############################################### # Biquad Filters Configuration ############################################### # # ADC Biquad Filter Coefficients # High Pass 1st Order Butterworth, 20Hz Fc 0dB # # Select Page 8 w 30 00 08 # # Filter Coefficients N0, N1, D1 w 30 18 7f d1 60 w 30 1c 80 2e a0 w 30 20 7f a2 c1 # ############################################### ############################################### # Recording Setup ############################################### # # Select Page 1 w 30 00 01 # # Route IN1L to LEFT_P with 20K input impedance w 30 34 80 # # Route Common Mode to LEFT_M with impedance of 20K w 30 36 80 # # Route IN1R to RIGHT_P with input impedance of 20K w 30 37 80 # # Route Common Mode to RIGHT_M with impedance of 20K w 30 39 80 # # Unmute Left MICPGA, Gain selection of 6dB to make channel gain 0dB # Register of 6dB with input impedance of 20K => Channel Gain of 0dB w 30 3b 0c # # Unmute Right MICPGA, Gain selection of 6dB to make channel gain 0dB # Register of 6dB with input impedance of 20K => Channel Gain of 0dB w 30 3c 0c # # Select Page 0 w 30 00 00 # # Power up LADC/RADC w 30 51 c0 # # Unmute LADC/RADC w 30 52 00 # ###############################################
