User's Manual

LS9 User Guide
Libre Wireless Technologies User Guide: LS9, Ver. 3.3.1 Page 40 of 93
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5.18. SPDIF
SPDIF NV-Item allows the user to enable / disable SPDIF output. When SPDIF is disabled,
output is from I2S. By default SPDIF output is disabled.
To enable SPDIF output, use the syntax below in the command line.
Enable SPDIF Output
# setenv spdif 1
Disable SPDIF Output (Default)
#setenv spdif 0
5.19. Current Volume
The NV-item current_volume enables the user to set the volume levels for LS enabled
speakers. The possible Values for the NV-Item Current Volume is between 0-100. The
default value is 50.
The syntax below provides the commands to edit the NV-Item.
#setenv current_volume <<50>>
5.20. X-MODEM Packet Size
X-Modem Packet Size for transferring the firmware to Host-MCU can be either 128 bytes or
1022 bytes. The X-MODEM Packet Size can be set using the NV-Item xmodem_pkt_size. By
default the X-MODEM Packet Size is set to be 1024 bytes.
The syntax below provides commands to edit xmodem_pkt_size.
To set the X-MODEM Packet Size at 128bytes
#setenv xmodem_pkt_size <<128>>
To set the X-MODEM Packet Size at 1024 bytes
# setenv xmodem_pkt_size <<1024>>