esp-idf/components/driver/Kconfig

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menu "Driver configurations"
menu "ADC configuration"
config ADC_FORCE_XPD_FSM
bool "Use the FSM to control ADC power"
default n
help
ADC power can be controlled by the FSM instead of software. This allows the ADC to
be shut off when it is not working leading to lower power consumption. However
using the FSM control ADC power will increase the noise of ADC.
config ADC_DISABLE_DAC
bool "Disable DAC when ADC2 is used on GPIO 25 and 26"
default y
help
If this is set, the ADC2 driver will disable the output of the DAC corresponding to the specified
channel. This is the default value.
For testing, disable this option so that we can measure the output of DAC by internal ADC.
endmenu # ADC Configuration
menu "SPI configuration"
config SPI_MASTER_IN_IRAM
bool "Place transmitting functions of SPI master into IRAM"
default n
select SPI_MASTER_ISR_IN_IRAM
help
Normally only the ISR of SPI master is placed in the IRAM, so that it
can work without the flash when interrupt is triggered.
For other functions, there's some possibility that the flash cache
miss when running inside and out of SPI functions, which may increase
the interval of SPI transactions.
Enable this to put ``queue_trans``, ``get_trans_result`` and
``transmit`` functions into the IRAM to avoid possible cache miss.
During unit test, this is enabled to measure the ideal case of api.
config SPI_MASTER_ISR_IN_IRAM
bool "Place SPI master ISR function into IRAM"
default y
help
Place the SPI master ISR in to IRAM to avoid possible cache miss.
Also you can forbid the ISR being disabled during flash writing
access, by add ESP_INTR_FLAG_IRAM when initializing the driver.
config SPI_SLAVE_IN_IRAM
bool "Place transmitting functions of SPI slave into IRAM"
default n
select SPI_SLAVE_ISR_IN_IRAM
help
Normally only the ISR of SPI slave is placed in the IRAM, so that it
can work without the flash when interrupt is triggered.
For other functions, there's some possibility that the flash cache
miss when running inside and out of SPI functions, which may increase
the interval of SPI transactions.
Enable this to put ``queue_trans``, ``get_trans_result`` and
``transmit`` functions into the IRAM to avoid possible cache miss.
config SPI_SLAVE_ISR_IN_IRAM
bool "Place SPI slave ISR function into IRAM"
default y
help
Place the SPI slave ISR in to IRAM to avoid possible cache miss.
Also you can forbid the ISR being disabled during flash writing
access, by add ESP_INTR_FLAG_IRAM when initializing the driver.
endmenu # SPI Configuration
menu "TWAI configuration"
config TWAI_ISR_IN_IRAM
bool "Place TWAI ISR function into IRAM"
default n
help
Place the TWAI ISR in to IRAM. This will allow the ISR to avoid
cache misses, and also be able to run whilst the cache is disabled
(such as when writing to SPI Flash).
Note that if this option is enabled:
- Users should also set the ESP_INTR_FLAG_IRAM in the driver
configuration structure when installing the driver (see docs for
specifics).
- Alert logging (i.e., setting of the TWAI_ALERT_AND_LOG flag)
will have no effect.
endmenu # TWAI Configuration
menu "UART configuration"
config UART_ISR_IN_IRAM
bool "Place UART ISR function into IRAM"
default n
help
If this option is not selected, UART interrupt will be disabled for a long time and
may cause data lost when doing spi flash operation.
endmenu # UART Configuration
menu "RTCIO configuration"
visible if IDF_TARGET_ESP32
config RTCIO_SUPPORT_RTC_GPIO_DESC
bool "Support array `rtc_gpio_desc` for ESP32"
depends on IDF_TARGET_ESP32
default n
help
The the array `rtc_gpio_desc` will don't compile by default.
If this option is selected, the array `rtc_gpio_desc` can be compile.
If user use this array, please enable this configuration.
endmenu # RTCIO Configuration
menu "GPIO Configuration"
visible if IDF_TARGET_ESP32
config GPIO_ESP32_SUPPORT_SWITCH_SLP_PULL
bool "Support light sleep GPIO pullup/pulldown configuration for ESP32"
depends on IDF_TARGET_ESP32
help
This option is intended to fix the bug that ESP32 is not able to switch to configured
pullup/pulldown mode in sleep.
If this option is selected, chip will automatically emulate the behaviour of switching,
and about 450B of source codes would be placed into IRAM.
endmenu # GPIO Configuration
endmenu # Driver configurations