Configuring the Firmware#
The default application performs as described in the Overview. There are numerous compile time options that can be added to change the example design without requiring code changes. To change the options explained in the table below, add the desired configuration variables to the APP_COMPILE_DEFINITIONS cmake variable located here.
If options are changed, the application firmware must be rebuilt.
Compile Option |
Description |
Default Value |
|---|---|---|
appconfINTENT_ENABLED |
Enables/disables the intent engine, primarily for debug. |
1 |
appconfINTENT_RESET_DELAY_MS |
Sets the period after the wake up phrase has been heard for a valid command phrase |
5000 |
appconfINTENT_RAW_OUTPUT |
Set to 1 to output all keywords found, skipping the internal wake up and command state machine |
0 |
appconfAUDIO_PLAYBACK_ENABLED |
Enables/disables the audio playback command response |
1 |
appconfINTENT_UART_OUTPUT_ENABLED |
Enables/disables the UART intent message |
1 |
appconfINTENT_I2C_OUTPUT_ENABLED |
Enables/disables the I2C intent message |
1 |
appconfUART_BAUD_RATE |
Sets the baud rate for the UART tx intent interface |
9600 |
appconfINTENT_I2C_OUTPUT_DEVICE_ADDR |
Sets the I2C slave address to transmit the intent to |
0x01 |
appconfINTENT_TRANSPORT_DELAY_MS |
Sets the delay between host wake up requested and I2C and UART keyword code transmission |
50 |
appconfINTENT_QUEUE_LEN |
Sets the maximum number of detected intents to hold while waiting for the host to wake up |
10 |
appconfINTENT_WAKEUP_EDGE_TYPE |
Sets the host wake up pin GPIO edge type. 0 for rising edge, 1 for falling edge |
0 |
appconfAUDIO_PIPELINE_SKIP_IC_AND_VNR |
Enables/disables the IC and VNR |
0 |
appconfAUDIO_PIPELINE_SKIP_NS |
Enables/disables the NS |
0 |
appconfAUDIO_PIPELINE_SKIP_AGC |
Enables/disables the AGC |
0 |