esp-idf/components/esp_driver_dac/Kconfig

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menu "ESP-Driver:DAC Configurations"
depends on SOC_DAC_SUPPORTED
config DAC_CTRL_FUNC_IN_IRAM
bool "Place DAC control functions into IRAM"
default n
help
Place DAC control functions (e.g. 'dac_oneshot_output_voltage') into IRAM,
so that this function can be IRAM-safe and able to be called in the other IRAM interrupt context.
Enabling this option can improve driver performance as well.
config DAC_ISR_IRAM_SAFE
bool "DAC ISR IRAM-Safe"
default n
help
Ensure the DAC interrupt is IRAM-Safe by allowing the interrupt handler to be
executable when the cache is disabled (e.g. SPI Flash write).
config DAC_ENABLE_DEBUG_LOG
bool "Enable debug log"
default n
help
whether to enable the debug log message for DAC driver.
Note that, this option only controls the DAC driver log, won't affect other drivers.
config DAC_DMA_AUTO_16BIT_ALIGN
bool "Align the continuous data to 16 bit automatically"
depends on SOC_DAC_DMA_16BIT_ALIGN
default y
help
Whether to left shift the continuous data to align every bytes to 16 bits in the driver.
On ESP32, although the DAC resolution is only 8 bits,
the hardware requires 16 bits data in continuous mode.
By enabling this option, the driver will left shift 8 bits for the input data automatically.
Only disable this option when you decide to do this step by yourself.
Note that the driver will allocate a new piece of memory to save the converted data.
endmenu # DAC Configuration