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esp-idf/components/esp32/Kconfig
Alexey Gerenkov 30ff7198b8 apptrace: Renames Kconfig options
2019-11-13 15:24:01 +03:00

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menu "ESP32-specific"
# TODO: this component simply shouldn't be included
# in the build at the CMake level, but this is currently
# not working so we just hide all items here
visible if IDF_TARGET_ESP32
choice ESP32_REV_MIN
prompt "Minimum Supported ESP32 Revision"
default ESP32_REV_MIN_0
help
Minimum revision that ESP-IDF would support.
ESP-IDF performs different strategy on different esp32 revision.
config ESP32_REV_MIN_0
bool "Rev 0"
config ESP32_REV_MIN_1
bool "Rev 1"
config ESP32_REV_MIN_2
bool "Rev 2"
config ESP32_REV_MIN_3
bool "Rev 3"
endchoice
config ESP32_REV_MIN
int
default 0 if ESP32_REV_MIN_0
default 1 if ESP32_REV_MIN_1
default 2 if ESP32_REV_MIN_2
default 3 if ESP32_REV_MIN_3
config ESP32_DPORT_WORKAROUND
bool
default "y" if !FREERTOS_UNICORE && ESP32_REV_MIN < 2
choice ESP32_DEFAULT_CPU_FREQ_MHZ
prompt "CPU frequency"
default ESP32_DEFAULT_CPU_FREQ_160
help
CPU frequency to be set on application startup.
config ESP32_DEFAULT_CPU_FREQ_80
bool "80 MHz"
config ESP32_DEFAULT_CPU_FREQ_160
bool "160 MHz"
config ESP32_DEFAULT_CPU_FREQ_240
bool "240 MHz"
endchoice
config ESP32_DEFAULT_CPU_FREQ_MHZ
int
default 80 if ESP32_DEFAULT_CPU_FREQ_80
default 160 if ESP32_DEFAULT_CPU_FREQ_160
default 240 if ESP32_DEFAULT_CPU_FREQ_240
# Note: to support SPIRAM across multiple chips, check CONFIG_SPIRAM
# instead
config ESP32_SPIRAM_SUPPORT
bool "Support for external, SPI-connected RAM"
default "n"
select SPIRAM
help
This enables support for an external SPI RAM chip, connected in parallel with the
main SPI flash chip.
menu "SPI RAM config"
depends on ESP32_SPIRAM_SUPPORT
choice SPIRAM_TYPE
prompt "Type of SPI RAM chip in use"
default SPIRAM_TYPE_AUTO
config SPIRAM_TYPE_AUTO
bool "Auto-detect"
config SPIRAM_TYPE_ESPPSRAM32
bool "ESP-PSRAM32 or IS25WP032"
config SPIRAM_TYPE_ESPPSRAM64
bool "ESP-PSRAM64 or LY68L6400"
endchoice
config SPIRAM_SIZE
int
default -1 if SPIRAM_TYPE_AUTO
default 4194304 if SPIRAM_TYPE_ESPPSRAM32
default 8388608 if SPIRAM_TYPE_ESPPSRAM64
default 0
choice SPIRAM_SPEED
prompt "Set RAM clock speed"
default SPIRAM_SPEED_40M
help
Select the speed for the SPI RAM chip.
If SPI RAM is enabled, we only support three combinations of SPI speed mode we supported now:
1. Flash SPI running at 40Mhz and RAM SPI running at 40Mhz
2. Flash SPI running at 80Mhz and RAM SPI running at 40Mhz
3. Flash SPI running at 80Mhz and RAM SPI running at 80Mhz
Note: If the third mode(80Mhz+80Mhz) is enabled for SPI RAM of type 32MBit, one of the HSPI/VSPI host
will be occupied by the system. Which SPI host to use can be selected by the config item
SPIRAM_OCCUPY_SPI_HOST. Application code should never touch HSPI/VSPI hardware in this case. The
option to select 80MHz will only be visible if the flash SPI speed is also 80MHz.
(ESPTOOLPY_FLASHFREQ_80M is true)
config SPIRAM_SPEED_40M
bool "40MHz clock speed"
config SPIRAM_SPEED_80M
depends on ESPTOOLPY_FLASHFREQ_80M
bool "80MHz clock speed"
endchoice
# insert non-chip-specific items here
source "$IDF_PATH/components/esp_common/Kconfig.spiram.common"
config SPIRAM_CACHE_WORKAROUND
bool "Enable workaround for bug in SPI RAM cache for Rev1 ESP32s"
depends on (SPIRAM_USE_MEMMAP || SPIRAM_USE_CAPS_ALLOC || SPIRAM_USE_MALLOC) && (ESP32_REV_MIN < 3)
default "y"
help
Revision 1 of the ESP32 has a bug that can cause a write to PSRAM not to take place in some situations
when the cache line needs to be fetched from external RAM and an interrupt occurs. This enables a
fix in the compiler (-mfix-esp32-psram-cache-issue) that makes sure the specific code that is
vulnerable to this will not be emitted.
This will also not use any bits of newlib that are located in ROM, opting for a version that is
compiled with the workaround and located in flash instead.
The workaround is not required for ESP32 revision 3 and above.
config SPIRAM_BANKSWITCH_ENABLE
bool "Enable bank switching for >4MiB external RAM"
default y
depends on SPIRAM_USE_MEMMAP || SPIRAM_USE_CAPS_ALLOC || SPIRAM_USE_MALLOC
help
The ESP32 only supports 4MiB of external RAM in its address space. The hardware does support larger
memories, but these have to be bank-switched in and out of this address space. Enabling this allows you
to reserve some MMU pages for this, which allows the use of the esp_himem api to manage these banks.
#Note that this is limited to 62 banks, as esp_spiram_writeback_cache needs some kind of mapping of
#some banks below that mark to work. We cannot at this moment guarantee this to exist when himem is
#enabled.
config SPIRAM_BANKSWITCH_RESERVE
int "Amount of 32K pages to reserve for bank switching"
depends on SPIRAM_BANKSWITCH_ENABLE
default 8
range 1 62
help
Select the amount of banks reserved for bank switching. Note that the amount of RAM allocatable with
malloc/esp_heap_alloc_caps will decrease by 32K for each page reserved here.
Note that this reservation is only actually done if your program actually uses the himem API. Without
any himem calls, the reservation is not done and the original amount of memory will be available
to malloc/esp_heap_alloc_caps.
config SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY
bool "Allow external memory as an argument to xTaskCreateStatic"
default n
depends on SPIRAM_USE_MALLOC
help
Because some bits of the ESP32 code environment cannot be recompiled with the cache workaround,
normally tasks cannot be safely run with their stack residing in external memory; for this reason
xTaskCreate and friends always allocate stack in internal memory and xTaskCreateStatic will check if
the memory passed to it is in internal memory. If you have a task that needs a large amount of stack
and does not call on ROM code in any way (no direct calls, but also no Bluetooth/WiFi), you can try to
disable this and use xTaskCreateStatic to create the tasks stack in external memory.
choice SPIRAM_OCCUPY_SPI_HOST
prompt "SPI host to use for 32MBit PSRAM"
default SPIRAM_OCCUPY_VSPI_HOST
depends on SPIRAM_SPEED_80M
help
When both flash and PSRAM is working under 80MHz, and the PSRAM is of type 32MBit, one of the HSPI/VSPI
host will be used to output the clock. Select which one to use here.
config SPIRAM_OCCUPY_HSPI_HOST
bool "HSPI host (SPI2)"
config SPIRAM_OCCUPY_VSPI_HOST
bool "VSPI host (SPI3)"
config SPIRAM_OCCUPY_NO_HOST
bool "Will not try to use any host, will abort if not able to use the PSRAM"
endchoice
menu "PSRAM clock and cs IO for ESP32-DOWD"
config D0WD_PSRAM_CLK_IO
int "PSRAM CLK IO number"
depends on ESP32_SPIRAM_SUPPORT
range 0 33
default 17
help
The PSRAM CLOCK IO can be any unused GPIO, user can config it based on hardware design. If user use
1.8V flash and 1.8V psram, this value can only be one of 6, 7, 8, 9, 10, 11, 16, 17.
config D0WD_PSRAM_CS_IO
int "PSRAM CS IO number"
depends on ESP32_SPIRAM_SUPPORT
range 0 33
default 16
help
The PSRAM CS IO can be any unused GPIO, user can config it based on hardware design. If user use
1.8V flash and 1.8V psram, this value can only be one of 6, 7, 8, 9, 10, 11, 16, 17.
endmenu
menu "PSRAM clock and cs IO for ESP32-D2WD"
config D2WD_PSRAM_CLK_IO
int "PSRAM CLK IO number"
depends on ESP32_SPIRAM_SUPPORT
range 0 33
default 9
help
User can config it based on hardware design. For ESP32-D2WD chip, the psram can only be 1.8V psram,
so this value can only be one of 6, 7, 8, 9, 10, 11, 16, 17.
config D2WD_PSRAM_CS_IO
int "PSRAM CS IO number"
depends on ESP32_SPIRAM_SUPPORT
range 0 33
default 10
help
User can config it based on hardware design. For ESP32-D2WD chip, the psram can only be 1.8V psram,
so this value can only be one of 6, 7, 8, 9, 10, 11, 16, 17.
endmenu
menu "PSRAM clock and cs IO for ESP32-PICO"
config PICO_PSRAM_CS_IO
int "PSRAM CS IO number"
depends on ESP32_SPIRAM_SUPPORT
range 0 33
default 10
help
The PSRAM CS IO can be any unused GPIO, user can config it based on hardware design.
For ESP32-PICO chip, the psram share clock with flash, so user do not need to configure the clock
IO.
For the reference hardware design, please refer to
https://www.espressif.com/sites/default/files/documentation/esp32-pico-d4_datasheet_en.pdf
endmenu
config SPIRAM_SPIWP_SD3_PIN
int "SPI PSRAM WP(SD3) Pin when customising pins via eFuse (read help)"
depends on ESPTOOLPY_FLASHMODE_DIO || ESPTOOLPY_FLASHMODE_DOUT
range 0 33
default 7
help
This value is ignored unless flash mode is set to DIO or DOUT and the SPI flash pins have been
overriden by setting the eFuses SPI_PAD_CONFIG_xxx.
When this is the case, the eFuse config only defines 3 of the 4 Quad I/O data pins. The WP pin (aka
ESP32 pin "SD_DATA_3" or SPI flash pin "IO2") is not specified in eFuse. And the psram only has QPI
mode, the WP pin is necessary, so we need to configure this value here.
When flash mode is set to QIO or QOUT, the PSRAM WP pin will be set as the value configured in
bootloader.
For ESP32-PICO chip, the default value of this config should be 7.
endmenu # "SPI RAM config"
config ESP32_MEMMAP_TRACEMEM
bool
default "n"
config ESP32_MEMMAP_TRACEMEM_TWOBANKS
bool
default "n"
config ESP32_TRAX
bool "Use TRAX tracing feature"
default "n"
select ESP32_MEMMAP_TRACEMEM
help
The ESP32 contains a feature which allows you to trace the execution path the processor
has taken through the program. This is stored in a chunk of 32K (16K for single-processor)
of memory that can't be used for general purposes anymore. Disable this if you do not know
what this is.
config ESP32_TRAX_TWOBANKS
bool "Reserve memory for tracing both pro as well as app cpu execution"
default "n"
depends on ESP32_TRAX && !FREERTOS_UNICORE
select ESP32_MEMMAP_TRACEMEM_TWOBANKS
help
The ESP32 contains a feature which allows you to trace the execution path the processor
has taken through the program. This is stored in a chunk of 32K (16K for single-processor)
of memory that can't be used for general purposes anymore. Disable this if you do not know
what this is.
# Memory to reverse for trace, used in linker script
config ESP32_TRACEMEM_RESERVE_DRAM
hex
default 0x8000 if ESP32_MEMMAP_TRACEMEM && ESP32_MEMMAP_TRACEMEM_TWOBANKS
default 0x4000 if ESP32_MEMMAP_TRACEMEM && !ESP32_MEMMAP_TRACEMEM_TWOBANKS
default 0x0
choice ESP32_UNIVERSAL_MAC_ADDRESSES
bool "Number of universally administered (by IEEE) MAC address"
default ESP32_UNIVERSAL_MAC_ADDRESSES_FOUR
help
Configure the number of universally administered (by IEEE) MAC addresses.
During initialisation, MAC addresses for each network interface are generated or derived from a
single base MAC address.
If the number of universal MAC addresses is four, all four interfaces (WiFi station, WiFi softap,
Bluetooth and Ethernet) receive a universally administered MAC address. These are generated
sequentially by adding 0, 1, 2 and 3 (respectively) to the final octet of the base MAC address.
If the number of universal MAC addresses is two, only two interfaces (WiFi station and Bluetooth)
receive a universally administered MAC address. These are generated sequentially by adding 0
and 1 (respectively) to the base MAC address. The remaining two interfaces (WiFi softap and Ethernet)
receive local MAC addresses. These are derived from the universal WiFi station and Bluetooth MAC
addresses, respectively.
When using the default (Espressif-assigned) base MAC address, either setting can be used. When using
a custom universal MAC address range, the correct setting will depend on the allocation of MAC
addresses in this range (either 2 or 4 per device.)
config ESP32_UNIVERSAL_MAC_ADDRESSES_TWO
bool "Two"
config ESP32_UNIVERSAL_MAC_ADDRESSES_FOUR
bool "Four"
endchoice
config ESP32_UNIVERSAL_MAC_ADDRESSES
int
default 2 if ESP32_UNIVERSAL_MAC_ADDRESSES_TWO
default 4 if ESP32_UNIVERSAL_MAC_ADDRESSES_FOUR
config ESP32_ULP_COPROC_ENABLED
bool "Enable Ultra Low Power (ULP) Coprocessor"
default "n"
help
Set to 'y' if you plan to load a firmware for the coprocessor.
If this option is enabled, further coprocessor configuration will appear in the Components menu.
config ESP32_ULP_COPROC_RESERVE_MEM
int
prompt "RTC slow memory reserved for coprocessor" if ESP32_ULP_COPROC_ENABLED
default 512 if ESP32_ULP_COPROC_ENABLED
range 32 8192 if ESP32_ULP_COPROC_ENABLED
default 0 if !ESP32_ULP_COPROC_ENABLED
range 0 0 if !ESP32_ULP_COPROC_ENABLED
help
Bytes of memory to reserve for ULP coprocessor firmware & data.
Data is reserved at the beginning of RTC slow memory.
choice ESP32_PANIC
prompt "Panic handler behaviour"
default ESP32_PANIC_PRINT_REBOOT
help
If FreeRTOS detects unexpected behaviour or an unhandled exception, the panic handler is
invoked. Configure the panic handlers action here.
config ESP32_PANIC_PRINT_HALT
bool "Print registers and halt"
help
Outputs the relevant registers over the serial port and halt the
processor. Needs a manual reset to restart.
config ESP32_PANIC_PRINT_REBOOT
bool "Print registers and reboot"
help
Outputs the relevant registers over the serial port and immediately
reset the processor.
config ESP32_PANIC_SILENT_REBOOT
bool "Silent reboot"
help
Just resets the processor without outputting anything
config ESP32_PANIC_GDBSTUB
bool "Invoke GDBStub"
select ESP_GDBSTUB_ENABLED
help
Invoke gdbstub on the serial port, allowing for gdb to attach to it to do a postmortem
of the crash.
endchoice
config ESP32_DEBUG_OCDAWARE
bool "Make exception and panic handlers JTAG/OCD aware"
default y
select FREERTOS_DEBUG_OCDAWARE
help
The FreeRTOS panic and unhandled exception handers can detect a JTAG OCD debugger and
instead of panicking, have the debugger stop on the offending instruction.
config ESP32_BROWNOUT_DET
bool "Hardware brownout detect & reset"
default y
help
The ESP32 has a built-in brownout detector which can detect if the voltage is lower than
a specific value. If this happens, it will reset the chip in order to prevent unintended
behaviour.
choice ESP32_BROWNOUT_DET_LVL_SEL
prompt "Brownout voltage level"
depends on ESP32_BROWNOUT_DET
default ESP32_BROWNOUT_DET_LVL_SEL_0
help
The brownout detector will reset the chip when the supply voltage is approximately
below this level. Note that there may be some variation of brownout voltage level
between each ESP32 chip.
#The voltage levels here are estimates, more work needs to be done to figure out the exact voltages
#of the brownout threshold levels.
config ESP32_BROWNOUT_DET_LVL_SEL_0
bool "2.43V +/- 0.05"
config ESP32_BROWNOUT_DET_LVL_SEL_1
bool "2.48V +/- 0.05"
config ESP32_BROWNOUT_DET_LVL_SEL_2
bool "2.58V +/- 0.05"
config ESP32_BROWNOUT_DET_LVL_SEL_3
bool "2.62V +/- 0.05"
config ESP32_BROWNOUT_DET_LVL_SEL_4
bool "2.67V +/- 0.05"
config ESP32_BROWNOUT_DET_LVL_SEL_5
bool "2.70V +/- 0.05"
config ESP32_BROWNOUT_DET_LVL_SEL_6
bool "2.77V +/- 0.05"
config ESP32_BROWNOUT_DET_LVL_SEL_7
bool "2.80V +/- 0.05"
endchoice
config ESP32_BROWNOUT_DET_LVL
int
default 0 if ESP32_BROWNOUT_DET_LVL_SEL_0
default 1 if ESP32_BROWNOUT_DET_LVL_SEL_1
default 2 if ESP32_BROWNOUT_DET_LVL_SEL_2
default 3 if ESP32_BROWNOUT_DET_LVL_SEL_3
default 4 if ESP32_BROWNOUT_DET_LVL_SEL_4
default 5 if ESP32_BROWNOUT_DET_LVL_SEL_5
default 6 if ESP32_BROWNOUT_DET_LVL_SEL_6
default 7 if ESP32_BROWNOUT_DET_LVL_SEL_7
#Reduce PHY TX power when brownout reset
config ESP32_REDUCE_PHY_TX_POWER
bool "Reduce PHY TX power when brownout reset"
depends on ESP32_BROWNOUT_DET
default y
help
When brownout reset occurs, reduce PHY TX power to keep the code running
# Note about the use of "FRC1" name: currently FRC1 timer is not used for
# high resolution timekeeping anymore. Instead the esp_timer API, implemented
# using FRC2 timer, is used.
# FRC1 name in the option name is kept for compatibility.
choice ESP32_TIME_SYSCALL
prompt "Timers used for gettimeofday function"
default ESP32_TIME_SYSCALL_USE_RTC_FRC1
help
This setting defines which hardware timers are used to
implement 'gettimeofday' and 'time' functions in C library.
- If both high-resolution and RTC timers are used, timekeeping will
continue in deep sleep. Time will be reported at 1 microsecond
resolution. This is the default, and the recommended option.
- If only high-resolution timer is used, gettimeofday will
provide time at microsecond resolution.
Time will not be preserved when going into deep sleep mode.
- If only RTC timer is used, timekeeping will continue in
deep sleep, but time will be measured at 6.(6) microsecond
resolution. Also the gettimeofday function itself may take
longer to run.
- If no timers are used, gettimeofday and time functions
return -1 and set errno to ENOSYS.
- When RTC is used for timekeeping, two RTC_STORE registers are
used to keep time in deep sleep mode.
config ESP32_TIME_SYSCALL_USE_RTC_FRC1
bool "RTC and high-resolution timer"
config ESP32_TIME_SYSCALL_USE_RTC
bool "RTC"
config ESP32_TIME_SYSCALL_USE_FRC1
bool "High-resolution timer"
config ESP32_TIME_SYSCALL_USE_NONE
bool "None"
endchoice
choice ESP32_RTC_CLK_SRC
prompt "RTC clock source"
default ESP32_RTC_CLK_SRC_INT_RC
help
Choose which clock is used as RTC clock source.
- "Internal 150kHz oscillator" option provides lowest deep sleep current
consumption, and does not require extra external components. However
frequency stability with respect to temperature is poor, so time may
drift in deep/light sleep modes.
- "External 32kHz crystal" provides better frequency stability, at the
expense of slightly higher (1uA) deep sleep current consumption.
- "External 32kHz oscillator" allows using 32kHz clock generated by an
external circuit. In this case, external clock signal must be connected
to 32K_XP pin. Amplitude should be <1.2V in case of sine wave signal,
and <1V in case of square wave signal. Common mode voltage should be
0.1 < Vcm < 0.5Vamp, where Vamp is the signal amplitude.
Additionally, 1nF capacitor must be connected between 32K_XN pin and
ground. 32K_XN pin can not be used as a GPIO in this case.
- "Internal 8.5MHz oscillator divided by 256" option results in higher
deep sleep current (by 5uA) but has better frequency stability than
the internal 150kHz oscillator. It does not require external components.
config ESP32_RTC_CLK_SRC_INT_RC
bool "Internal 150kHz RC oscillator"
config ESP32_RTC_CLK_SRC_EXT_CRYS
bool "External 32kHz crystal"
config ESP32_RTC_CLK_SRC_EXT_OSC
bool "External 32kHz oscillator at 32K_XP pin"
config ESP32_RTC_CLK_SRC_INT_8MD256
bool "Internal 8.5MHz oscillator, divided by 256 (~33kHz)"
endchoice
config ESP32_RTC_EXT_CRYST_ADDIT_CURRENT
bool "Additional current for external 32kHz crystal"
depends on ESP32_RTC_CLK_SRC_EXT_CRYS
default "n"
help
Choose which additional current is used for rtc external crystal.
- With some 32kHz crystal configurations, the X32N and X32P pins may not
have enough drive strength to keep the crystal oscillating during deep sleep.
If this option is enabled, additional current from touchpad 9 is provided
internally to drive the 32kHz crystal. If this option is enabled, deep sleep current
is slightly higher (4-5uA) and the touchpad and ULP wakeup sources are not available.
config ESP32_RTC_CLK_CAL_CYCLES
int "Number of cycles for RTC_SLOW_CLK calibration"
default 3000 if ESP32_RTC_CLK_SRC_EXT_CRYS
default 1024 if ESP32_RTC_CLK_SRC_INT_RC
range 0 27000 if ESP32_RTC_CLK_SRC_EXT_CRYS || ESP32_RTC_CLK_SRC_EXT_OSC || ESP32_RTC_CLK_SRC_INT_8MD256
range 0 32766 if ESP32_RTC_CLK_SRC_INT_RC
help
When the startup code initializes RTC_SLOW_CLK, it can perform
calibration by comparing the RTC_SLOW_CLK frequency with main XTAL
frequency. This option sets the number of RTC_SLOW_CLK cycles measured
by the calibration routine. Higher numbers increase calibration
precision, which may be important for applications which spend a lot of
time in deep sleep. Lower numbers reduce startup time.
When this option is set to 0, clock calibration will not be performed at
startup, and approximate clock frequencies will be assumed:
- 150000 Hz if internal RC oscillator is used as clock source. For this use value 1024.
- 32768 Hz if the 32k crystal oscillator is used. For this use value 3000 or more.
In case more value will help improve the definition of the launch of the crystal.
If the crystal could not start, it will be switched to internal RC.
config ESP32_RTC_XTAL_BOOTSTRAP_CYCLES
int "Bootstrap cycles for external 32kHz crystal"
depends on ESP32_RTC_CLK_SRC_EXT_CRYS
default 5
range 0 32768
help
To reduce the startup time of an external RTC crystal,
we bootstrap it with a 32kHz square wave for a fixed number of cycles.
Setting 0 will disable bootstrapping (if disabled, the crystal may take
longer to start up or fail to oscillate under some conditions).
If this value is too high, a faulty crystal may initially start and then fail.
If this value is too low, an otherwise good crystal may not start.
To accurately determine if the crystal has started,
set a larger "Number of cycles for RTC_SLOW_CLK calibration" (about 3000).
config ESP32_DEEP_SLEEP_WAKEUP_DELAY
int "Extra delay in deep sleep wake stub (in us)"
default 2000
range 0 5000
help
When ESP32 exits deep sleep, the CPU and the flash chip are powered on
at the same time. CPU will run deep sleep stub first, and then
proceed to load code from flash. Some flash chips need sufficient
time to pass between power on and first read operation. By default,
without any extra delay, this time is approximately 900us, although
some flash chip types need more than that.
By default extra delay is set to 2000us. When optimizing startup time
for applications which require it, this value may be reduced.
If you are seeing "flash read err, 1000" message printed to the
console after deep sleep reset, try increasing this value.
choice ESP32_XTAL_FREQ_SEL
prompt "Main XTAL frequency"
default ESP32_XTAL_FREQ_40
help
ESP32 currently supports the following XTAL frequencies:
- 26 MHz
- 40 MHz
Startup code can automatically estimate XTAL frequency. This feature
uses the internal 8MHz oscillator as a reference. Because the internal
oscillator frequency is temperature dependent, it is not recommended
to use automatic XTAL frequency detection in applications which need
to work at high ambient temperatures and use high-temperature
qualified chips and modules.
config ESP32_XTAL_FREQ_40
bool "40 MHz"
config ESP32_XTAL_FREQ_26
bool "26 MHz"
config ESP32_XTAL_FREQ_AUTO
bool "Autodetect"
endchoice
# Keep these values in sync with rtc_xtal_freq_t enum in soc/rtc.h
config ESP32_XTAL_FREQ
int
default 0 if ESP32_XTAL_FREQ_AUTO
default 40 if ESP32_XTAL_FREQ_40
default 26 if ESP32_XTAL_FREQ_26
config ESP32_DISABLE_BASIC_ROM_CONSOLE
bool "Permanently disable BASIC ROM Console"
default n
help
If set, the first time the app boots it will disable the BASIC ROM Console
permanently (by burning an eFuse).
Otherwise, the BASIC ROM Console starts on reset if no valid bootloader is
read from the flash.
(Enabling secure boot also disables the BASIC ROM Console by default.)
config ESP32_NO_BLOBS
bool "No Binary Blobs"
depends on !BT_ENABLED
default n
help
If enabled, this disables the linking of binary libraries in the application build. Note
that after enabling this Wi-Fi/Bluetooth will not work.
config ESP32_COMPATIBLE_PRE_V2_1_BOOTLOADERS
bool "App compatible with bootloaders before IDF v2.1"
default n
help
Bootloaders before IDF v2.1 did less initialisation of the
system clock. This setting needs to be enabled to build an app
which can be booted by these older bootloaders.
If this setting is enabled, the app can be booted by any bootloader
from IDF v1.0 up to the current version.
If this setting is disabled, the app can only be booted by bootloaders
from IDF v2.1 or newer.
Enabling this setting adds approximately 1KB to the app's IRAM usage.
config ESP32_APP_INIT_CLK
bool
default y if ESP32_COMPATIBLE_PRE_V2_1_BOOTLOADERS
default y if APP_BUILD_TYPE_ELF_RAM
config ESP32_RTCDATA_IN_FAST_MEM
bool "Place RTC_DATA_ATTR and RTC_RODATA_ATTR variables into RTC fast memory segment"
default n
depends on FREERTOS_UNICORE
help
This option allows to place .rtc_data and .rtc_rodata sections into
RTC fast memory segment to free the slow memory region for ULP programs.
This option depends on the CONFIG_FREERTOS_UNICORE option because RTC fast memory
can be accessed only by PRO_CPU core.
config ESP32_USE_FIXED_STATIC_RAM_SIZE
bool "Use fixed static RAM size"
default n
help
If this option is disabled, the DRAM part of the heap starts right after the .bss section,
within the dram0_0 region. As a result, adding or removing some static variables
will change the available heap size.
If this option is enabled, the DRAM part of the heap starts right after the dram0_0 region,
where its length is set with ESP32_FIXED_STATIC_RAM_SIZE
config ESP32_FIXED_STATIC_RAM_SIZE
hex "Fixed Static RAM size"
default 0x1E000
range 0 0x2c200
depends on ESP32_USE_FIXED_STATIC_RAM_SIZE
help
RAM size dedicated for static variables (.data & .bss sections).
Please note that the actual length will be reduced by BT_RESERVE_DRAM if Bluetooth
controller is enabled.
config ESP32_DPORT_DIS_INTERRUPT_LVL
int "Disable the interrupt level for the DPORT workarounds"
default 5
help
To prevent interrupting DPORT workarounds,
need to disable interrupt with a maximum used level in the system.
endmenu # ESP32-Specific
menu "Power Management"
# TODO: this component simply shouldn't be included
# in the build at the CMake level, but this is currently
# not working so we just hide all items here
visible if IDF_TARGET_ESP32
config PM_ENABLE
bool "Support for power management"
default n
help
If enabled, application is compiled with support for power management.
This option has run-time overhead (increased interrupt latency,
longer time to enter idle state), and it also reduces accuracy of
RTOS ticks and timers used for timekeeping.
Enable this option if application uses power management APIs.
config PM_DFS_INIT_AUTO
bool "Enable dynamic frequency scaling (DFS) at startup"
depends on PM_ENABLE
default n
help
If enabled, startup code configures dynamic frequency scaling.
Max CPU frequency is set to CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ setting,
min frequency is set to XTAL frequency.
If disabled, DFS will not be active until the application
configures it using esp_pm_configure function.
config PM_USE_RTC_TIMER_REF
bool "Use RTC timer to prevent time drift (EXPERIMENTAL)"
depends on PM_ENABLE && (ESP32_TIME_SYSCALL_USE_RTC || ESP32_TIME_SYSCALL_USE_RTC_FRC1)
default n
help
When APB clock frequency changes, high-resolution timer (esp_timer)
scale and base value need to be adjusted. Each adjustment may cause
small error, and over time such small errors may cause time drift.
If this option is enabled, RTC timer will be used as a reference to
compensate for the drift.
It is recommended that this option is only used if 32k XTAL is selected
as RTC clock source.
config PM_PROFILING
bool "Enable profiling counters for PM locks"
depends on PM_ENABLE
default n
help
If enabled, esp_pm_* functions will keep track of the amount of time
each of the power management locks has been held, and esp_pm_dump_locks
function will print this information.
This feature can be used to analyze which locks are preventing the chip
from going into a lower power state, and see what time the chip spends
in each power saving mode. This feature does incur some run-time
overhead, so should typically be disabled in production builds.
config PM_TRACE
bool "Enable debug tracing of PM using GPIOs"
depends on PM_ENABLE
default n
help
If enabled, some GPIOs will be used to signal events such as RTOS ticks,
frequency switching, entry/exit from idle state. Refer to pm_trace.c
file for the list of GPIOs.
This feature is intended to be used when analyzing/debugging behavior
of power management implementation, and should be kept disabled in
applications.
endmenu # "Power Management"
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