# VSOS3 Boot Configuration File optimized for maximum quality audio
# Hi-Res format playback.
#
# Please connect UART:115200,N81 to see the boot information.
# At the boot time, STDOUT and STDERR will print to the UART.
#
# At boot, you can press [S1], [S2], [S1+S2] or [S4] to select configuration
# 1, 2, 5, or 4, respectively.


[0]
# Default configuration, no buttons pressed during boot.
# Sets up audio drivers and clock, then drops to the VSOS Shell.
#
# Set a clock high enough for Hi-Res codecs.
RUN SETCLOCK -l95 92
# If you don't require DSD256, the following clock setting is recommended.
#RUN SETCLOCK -l95 86
# Start SD card as device D
SDSD D
# Audio DAC out driver
AUODAC s
# Make large audio buffer so that all codecs will play without trashing memory
# and with minimum amount of MHz
RUN AUOUTPUT -s8192
# New 2015 audio ADC in driver
AUIADC s 48000 line1_1 line1_3
# I2S automatic out
#AUOI2SMA
# S/PDIF automatic out, parameter can be either 48000 or 96000 (default)
#AUOSPDA 96000 s
# Start UART in/out driver
UARTIN
# Start the shell
S:SHELL.AP3



[1]
# Button[S1] pressed.
# Configuration S1 is fixed to be the USB Upload Configuration 
# in the Kernel. [S1] for SPI Flash (System disk)
# For usability reasons, the chip will remain in the USB mode until
# it is reset, so no further drivers can be loaded in this configuration.



[2]
# Button [S2] pressed during boot.
# Just wait "forever" for a potential VS3EMU connection attempt
run delay 0x7fffffff



[3]
# Configuration S3 cannot be used due to a power issue with the developer
# board PCB.



[4]
# Button [S4] pressed during boot.
# Just wait "forever" for a potential VS3EMU connection attempt
run delay 0x7fffffff



[5]
# Buttons [S1] and [S2] pressed simultaneously during boot.
# In this configuration, the OS loads drivers and *then* shows S: on USB.
# For this example we load the SD driver to be shown on the USB.
SDSDMONO S
