AN-000327
Page 6 of 11
Document Number: AN-000327
Revision: 1.0
Figure 6.
Recording in Audacity – Standby mode test tones
User Hardware Configuration
The board features several settings that are configurable by the user.
Reset push button
Mode push button
Configuration header jumpers which can be used to select between high quality mode and low power mode (where
applicable) and add up to +30dB of digital gain
Reset
Figure 7.
Reset and Mode push buttons
Pressing the reset button is the manual method for resetting the on-board DSP and ADC. If the device were to malfunction for
whatever reason, pressing this button would allow the board to load factory default settings.
Mode
Figure 8.
LED indications for mode select
The mode button shown in
Figure 7
selects the type of output interface it expects to see on the FPCB input. SmartSound One starts
up in Standby Mode and pressing the ‘MODE’ button scrolls through the other modes in the order listed below:
Standby Mode
– The board starts up in this mode and a blinking LED (DS5) indicates the factory DSP image
was successfully loaded. Internally generated test tones will be output on the left and right channels. The mic
outputs aren't connected in this mode, so the user will have to toggle MODE to activate the appropriate mic type