menu "Driver Configurations" menu "Legacy ADC Configuration" config ADC_DISABLE_DAC depends on SOC_DAC_SUPPORTED 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. config ADC_SUPPRESS_DEPRECATE_WARN bool "Suppress legacy driver deprecated warning" default n help Wether to suppress the deprecation warnings when using legacy adc driver (driver/adc.h). If you want to continue using the legacy driver, and don't want to see related deprecation warnings, you can enable this option. menu "Legacy ADC Calibration Configuration" config ADC_CAL_EFUSE_TP_ENABLE depends on IDF_TARGET_ESP32 bool "Use Two Point Values" default "y" help Some ESP32s have Two Point calibration values burned into eFuse BLOCK3. This option will allow the ADC calibration component to characterize the ADC-Voltage curve using Two Point values if they are available. config ADC_CAL_EFUSE_VREF_ENABLE depends on IDF_TARGET_ESP32 bool "Use eFuse Vref" default "y" help Some ESP32s have Vref burned into eFuse BLOCK0. This option will allow the ADC calibration component to characterize the ADC-Voltage curve using eFuse Vref if it is available. config ADC_CAL_LUT_ENABLE depends on IDF_TARGET_ESP32 bool "Use Lookup Tables" default "y" help This option will allow the ADC calibration component to use Lookup Tables to correct for non-linear behavior in 11db attenuation. Other attenuations do not exhibit non-linear behavior hence will not be affected by this option. config ADC_CALI_SUPPRESS_DEPRECATE_WARN bool "Suppress legacy driver deprecated warning" default n help Wether to suppress the deprecation warnings when using legacy adc calibration driver (esp_adc_cal.h). If you want to continue using the legacy driver, and don't want to see related deprecation warnings, you can enable this option. endmenu 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" depends on SOC_TWAI_SUPPORTED config TWAI_ISR_IN_IRAM bool "Place TWAI ISR function into IRAM" default n select PERIPH_CTRL_FUNC_IN_IRAM if TWAI_ERRATA_FIX_RX_FRAME_INVALID || TWAI_ERRATA_FIX_RX_FIFO_CORRUPT 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. config TWAI_ERRATA_FIX_BUS_OFF_REC bool "Add SW workaround for REC change during bus-off" depends on IDF_TARGET_ESP32 default y help When the bus-off condition is reached, the REC should be reset to 0 and frozen (via LOM) by the driver's ISR. However on the ESP32, there is an edge case where the REC will increase before the driver's ISR can respond in time (e.g., due to the rapid occurrence of bus errors), thus causing the REC to be non-zero after bus-off. A non-zero REC can prevent bus-off recovery as the bus-off recovery condition is that both TEC and REC become 0. Enabling this option will add a workaround in the driver to forcibly reset REC to zero on reaching bus-off. config TWAI_ERRATA_FIX_TX_INTR_LOST bool "Add SW workaround for TX interrupt lost errata" depends on IDF_TARGET_ESP32 default y help On the ESP32, when a transmit interrupt occurs, and interrupt register is read on the same APB clock cycle, the transmit interrupt could be lost. Enabling this option will add a workaround that checks the transmit buffer status bit to recover any lost transmit interrupt. config TWAI_ERRATA_FIX_RX_FRAME_INVALID bool "Add SW workaround for invalid RX frame errata" depends on IDF_TARGET_ESP32 default y help On the ESP32, when receiving a data or remote frame, if a bus error occurs in the data or CRC field, the data of the next received frame could be invalid. Enabling this option will add a workaround that will reset the peripheral on detection of this errata condition. Note that if a frame is transmitted on the bus whilst the reset is ongoing, the message will not be receive by the peripheral sent on the bus during the reset, the message will be lost. config TWAI_ERRATA_FIX_RX_FIFO_CORRUPT bool "Add SW workaround for RX FIFO corruption errata" depends on IDF_TARGET_ESP32 default y help On the ESP32, when the RX FIFO overruns and the RX message counter maxes out at 64 messages, the entire RX FIFO is no longer recoverable. Enabling this option will add a workaround that resets the peripheral on detection of this errata condition. Note that if a frame is being sent on the bus during the reset bus during the reset, the message will be lost. endmenu # TWAI Configuration menu "Temperature sensor Configuration" depends on SOC_TEMP_SENSOR_SUPPORTED config TEMP_SENSOR_SUPPRESS_DEPRECATE_WARN bool "Suppress legacy driver deprecated warning" default n help Wether to suppress the deprecation warnings when using legacy temperature sensor driver (driver/temp_sensor.h). If you want to continue using the legacy driver, and don't want to see related deprecation warnings, you can enable this option. config TEMP_SENSOR_ENABLE_DEBUG_LOG bool "Enable debug log" default n help Wether to enable the debug log message for temperature sensor driver. Note that, this option only controls the temperature sensor driver log, won't affect other drivers. endmenu # TEMP_SENSOR Configuration menu "UART Configuration" config UART_ISR_IN_IRAM bool "Place UART ISR function into IRAM" depends on !RINGBUF_PLACE_ISR_FUNCTIONS_INTO_FLASH 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 "GPIO Configuration" 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. config GPIO_CTRL_FUNC_IN_IRAM bool "Place GPIO control functions into IRAM" default n help Place GPIO control functions (like intr_disable/set_level) into IRAM, so that these functions can be IRAM-safe and able to be called in the other IRAM interrupt context. endmenu # GPIO Configuration menu "Sigma Delta Modulator Configuration" depends on SOC_SDM_SUPPORTED config SDM_CTRL_FUNC_IN_IRAM bool "Place SDM control functions into IRAM" default n help Place SDM control functions (like set_duty) into IRAM, so that these functions 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 SDM_SUPPRESS_DEPRECATE_WARN bool "Suppress legacy driver deprecated warning" default n help Wether to suppress the deprecation warnings when using legacy sigma delta driver. If you want to continue using the legacy driver, and don't want to see related deprecation warnings, you can enable this option. config SDM_ENABLE_DEBUG_LOG bool "Enable debug log" default n help Wether to enable the debug log message for SDM driver. Note that, this option only controls the SDM driver log, won't affect other drivers. endmenu # Sigma Delta Modulator Configuration menu "GPTimer Configuration" config GPTIMER_CTRL_FUNC_IN_IRAM bool "Place GPTimer control functions into IRAM" default n help Place GPTimer control functions (like start/stop) into IRAM, so that these functions 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 GPTIMER_ISR_IRAM_SAFE bool "GPTimer ISR IRAM-Safe" default n help Ensure the GPTimer interrupt is IRAM-Safe by allowing the interrupt handler to be executable when the cache is disabled (e.g. SPI Flash write). config GPTIMER_SUPPRESS_DEPRECATE_WARN bool "Suppress legacy driver deprecated warning" default n help Wether to suppress the deprecation warnings when using legacy timer group driver (driver/timer.h). If you want to continue using the legacy driver, and don't want to see related deprecation warnings, you can enable this option. config GPTIMER_ENABLE_DEBUG_LOG bool "Enable debug log" default n help Wether to enable the debug log message for GPTimer driver. Note that, this option only controls the GPTimer driver log, won't affect other drivers. endmenu # GPTimer Configuration menu "PCNT Configuration" depends on SOC_PCNT_SUPPORTED config PCNT_CTRL_FUNC_IN_IRAM bool "Place PCNT control functions into IRAM" default n help Place PCNT control functions (like start/stop) into IRAM, so that these functions 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 PCNT_ISR_IRAM_SAFE bool "PCNT ISR IRAM-Safe" default n help Ensure the PCNT interrupt is IRAM-Safe by allowing the interrupt handler to be executable when the cache is disabled (e.g. SPI Flash write). config PCNT_SUPPRESS_DEPRECATE_WARN bool "Suppress legacy driver deprecated warning" default n help Wether to suppress the deprecation warnings when using legacy PCNT driver (driver/pcnt.h). If you want to continue using the legacy driver, and don't want to see related deprecation warnings, you can enable this option. config PCNT_ENABLE_DEBUG_LOG bool "Enable debug log" default n help Wether to enable the debug log message for PCNT driver. Note that, this option only controls the PCNT driver log, won't affect other drivers. endmenu # PCNT Configuration menu "RMT Configuration" depends on SOC_RMT_SUPPORTED config RMT_ISR_IRAM_SAFE bool "RMT ISR IRAM-Safe" default n select GDMA_ISR_IRAM_SAFE if SOC_RMT_SUPPORT_DMA # RMT basic functionality relies on GDMA callback select GDMA_CTRL_FUNC_IN_IRAM if SOC_RMT_SUPPORT_DMA # RMT needs to restart the GDMA in the interrupt help Ensure the RMT interrupt is IRAM-Safe by allowing the interrupt handler to be executable when the cache is disabled (e.g. SPI Flash write). config RMT_SUPPRESS_DEPRECATE_WARN bool "Suppress legacy driver deprecated warning" default n help Wether to suppress the deprecation warnings when using legacy rmt driver (driver/rmt.h). If you want to continue using the legacy driver, and don't want to see related deprecation warnings, you can enable this option. config RMT_ENABLE_DEBUG_LOG bool "Enable debug log" default n help Wether to enable the debug log message for RMT driver. Note that, this option only controls the RMT driver log, won't affect other drivers. endmenu # RMT Configuration menu "MCPWM Configuration" depends on SOC_MCPWM_SUPPORTED config MCPWM_ISR_IRAM_SAFE bool "Place MCPWM ISR function into IRAM" default n help This will ensure the MCPWM interrupt handle is IRAM-Safe, allow to avoid flash cache misses, and also be able to run whilst the cache is disabled. (e.g. SPI Flash write) endmenu # MCPWM Configuration menu "I2S Configuration" depends on SOC_I2S_SUPPORTED config I2S_ISR_IRAM_SAFE bool "I2S ISR IRAM-Safe" default n help Ensure the I2S interrupt is IRAM-Safe by allowing the interrupt handler to be executable when the cache is disabled (e.g. SPI Flash write). config I2S_SUPPRESS_DEPRECATE_WARN bool "Suppress leagcy driver deprecated warning" default n help Enable this option will suppress the deprecation warnings of using APIs in legacy I2S driver. config I2S_ENABLE_DEBUG_LOG bool "Enable I2S debug log" default n help Wether to enable the debug log message for I2S driver. Note that, this option only controls the I2S driver log, will not affect other drivers. endmenu # I2S Configuration endmenu # Driver configurations