I'm attempting to integrate the VM3011 audio driver into my project which uses the Thingy53 platform.
This question originally led me to Edge Impulse's VM3011 driver code: Audio driver for VM3011 in Thingy:53 - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com)
I copied the vm3011 folder: firmware-nordic-thingy53/drivers/vm3011 at main · edgeimpulse/firmware-nordic-thingy53 · GitHub from their repository into my own project under a /drivers folder at the root of my application.
I think added the corresponding KConfig options from the driver to the prj.conf file:
# Microphone Support CONFIG_VM3011=y CONFIG_VM3011_PDM_BUFFER_SIZE=1600 CONFIG_AUDIO=y CONFIG_AUDIO_DMIC=y CONFIG_AUDIO_DMIC_LOG_LEVEL_DBG=y
and finally in the root CMakeLists.txt for the project I added:
set(ZEPHYR_EXTRA_MODULES ${CMAKE_CURRENT_SOURCE_DIR}/drivers/vm3011)
When I attempt to compile my project I get the following error:
C:/ncs/v2.3.0/zephyr/scripts/kconfig/kconfig.py: Dependency loop
===============
I2C (defined at boards/shields\x_nucleo_53l0a1\Kconfig.defconfig:9, C:/ncs/v2.3.0/zephyr/boards/arm/thingy53_nrf5340/Kconfig.defconfig:95, drivers/i2c/Kconfig:9), with definition...
config I2C
bool
default y
depends on SHIELD_X_NUCLEO_53L0A1
config I2C
bool
default y
depends on !TRUSTED_EXECUTION_SECURE && (BOARD_THINGY53_NRF5340_CPUAPP || BOARD_THINGY53_NRF5340_CPUAPP_NS)
menuconfig I2C
bool "I2C Drivers"
help
Enable I2C Driver Configuration
My questions are as follows:
1) Why would my project, which targets that thingy53_nrf5340_cpuapp_ns board target pull in some kconfig resources for the x_nucleo_53l0a1 shield? This reference to the shield is causing a dependency loop error listed above. How would I debug why this shield file gets pulled in?
2) Is there a good example for adding an out of tree driver to a basic project? My understanding is that I need to provide the driver files which Edge Impulse as already written, then add a devicetree overlay file that adds the vm3011 to system and it should just work correct?
