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https://github.com/espressif/esp-idf.git
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78392f0e84
Some RTC slow memory is reserved by IDF, reduce CONFIG_TARGET_ULP_COPROC_RESERVE_MEM range to reflect this. Closes https://github.com/espressif/esp-idf/issues/7073
790 lines
36 KiB
Plaintext
790 lines
36 KiB
Plaintext
menu "ESP32-specific"
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# TODO: this component simply shouldn't be included
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# in the build at the CMake level, but this is currently
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# not working so we just hide all items here
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visible if IDF_TARGET_ESP32
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config ESP32_ECO3_CACHE_LOCK_FIX
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bool
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default y
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depends on !FREERTOS_UNICORE && ESP32_SPIRAM_SUPPORT
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choice ESP32_REV_MIN
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prompt "Minimum Supported ESP32 Revision"
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default ESP32_REV_MIN_0
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help
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Minimum revision that ESP-IDF would support.
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ESP-IDF performs different strategy on different esp32 revision.
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config ESP32_REV_MIN_0
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bool "Rev 0"
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config ESP32_REV_MIN_1
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bool "Rev 1"
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config ESP32_REV_MIN_2
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bool "Rev 2"
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config ESP32_REV_MIN_3
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bool "Rev 3"
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select ESP_INT_WDT if ESP32_ECO3_CACHE_LOCK_FIX
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endchoice
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config ESP32_REV_MIN
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int
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default 0 if ESP32_REV_MIN_0
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default 1 if ESP32_REV_MIN_1
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default 2 if ESP32_REV_MIN_2
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default 3 if ESP32_REV_MIN_3
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config ESP32_DPORT_WORKAROUND
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bool
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default "y" if !FREERTOS_UNICORE && ESP32_REV_MIN < 2
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choice ESP32_DEFAULT_CPU_FREQ_MHZ
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prompt "CPU frequency"
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default ESP32_DEFAULT_CPU_FREQ_160
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help
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CPU frequency to be set on application startup.
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config ESP32_DEFAULT_CPU_FREQ_80
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bool "80 MHz"
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config ESP32_DEFAULT_CPU_FREQ_160
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bool "160 MHz"
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config ESP32_DEFAULT_CPU_FREQ_240
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bool "240 MHz"
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endchoice
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config ESP32_DEFAULT_CPU_FREQ_MHZ
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int
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default 80 if ESP32_DEFAULT_CPU_FREQ_80
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default 160 if ESP32_DEFAULT_CPU_FREQ_160
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default 240 if ESP32_DEFAULT_CPU_FREQ_240
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# Note: to support SPIRAM across multiple chips, check CONFIG_SPIRAM
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# instead
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config ESP32_SPIRAM_SUPPORT
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bool "Support for external, SPI-connected RAM"
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default "n"
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select SPIRAM
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help
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This enables support for an external SPI RAM chip, connected in parallel with the
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main SPI flash chip.
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menu "SPI RAM config"
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depends on ESP32_SPIRAM_SUPPORT
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choice SPIRAM_TYPE
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prompt "Type of SPI RAM chip in use"
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default SPIRAM_TYPE_AUTO
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config SPIRAM_TYPE_AUTO
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bool "Auto-detect"
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config SPIRAM_TYPE_ESPPSRAM16
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bool "ESP-PSRAM16 or APS1604"
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config SPIRAM_TYPE_ESPPSRAM32
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bool "ESP-PSRAM32 or IS25WP032"
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config SPIRAM_TYPE_ESPPSRAM64
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bool "ESP-PSRAM64 or LY68L6400"
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endchoice
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config SPIRAM_SIZE
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int
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default -1 if SPIRAM_TYPE_AUTO
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default 2097152 if SPIRAM_TYPE_ESPPSRAM16
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default 4194304 if SPIRAM_TYPE_ESPPSRAM32
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default 8388608 if SPIRAM_TYPE_ESPPSRAM64
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default 0
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choice SPIRAM_SPEED
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prompt "Set RAM clock speed"
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default SPIRAM_SPEED_40M
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help
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Select the speed for the SPI RAM chip.
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If SPI RAM is enabled, we only support three combinations of SPI speed mode we supported now:
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1. Flash SPI running at 40Mhz and RAM SPI running at 40Mhz
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2. Flash SPI running at 80Mhz and RAM SPI running at 40Mhz
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3. Flash SPI running at 80Mhz and RAM SPI running at 80Mhz
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Note: If the third mode(80Mhz+80Mhz) is enabled for SPI RAM of type 32MBit, one of the HSPI/VSPI host
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will be occupied by the system. Which SPI host to use can be selected by the config item
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SPIRAM_OCCUPY_SPI_HOST. Application code should never touch HSPI/VSPI hardware in this case. The
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option to select 80MHz will only be visible if the flash SPI speed is also 80MHz.
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(ESPTOOLPY_FLASHFREQ_80M is true)
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config SPIRAM_SPEED_40M
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bool "40MHz clock speed"
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config SPIRAM_SPEED_80M
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depends on ESPTOOLPY_FLASHFREQ_80M
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bool "80MHz clock speed"
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endchoice
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# insert non-chip-specific items here
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source "$IDF_PATH/components/esp_common/Kconfig.spiram.common"
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config SPIRAM_CACHE_WORKAROUND
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bool "Enable workaround for bug in SPI RAM cache for Rev1 ESP32s"
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depends on (SPIRAM_USE_MEMMAP || SPIRAM_USE_CAPS_ALLOC || SPIRAM_USE_MALLOC) && (ESP32_REV_MIN < 3)
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default "y"
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help
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Revision 1 of the ESP32 has a bug that can cause a write to PSRAM not to take place in some situations
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when the cache line needs to be fetched from external RAM and an interrupt occurs. This enables a
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fix in the compiler (-mfix-esp32-psram-cache-issue) that makes sure the specific code that is
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vulnerable to this will not be emitted.
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This will also not use any bits of newlib that are located in ROM, opting for a version that is
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compiled with the workaround and located in flash instead.
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The workaround is not required for ESP32 revision 3 and above.
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menu "SPIRAM cache workaround debugging"
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choice SPIRAM_CACHE_WORKAROUND_STRATEGY
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prompt "Workaround strategy"
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depends on SPIRAM_CACHE_WORKAROUND
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default SPIRAM_CACHE_WORKAROUND_STRATEGY_MEMW
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help
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Select the workaround strategy. Note that the strategy for precompiled
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libraries (libgcc, newlib, bt, wifi) is not affected by this selection.
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Unless you know you need a different strategy, it's suggested you stay
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with the default MEMW strategy. Note that DUPLDST can interfere with hardware
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encryption and this will be automatically disabled if this workaround is selected.
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'Insert nops' is the workaround that was used in older esp-idf versions. This workaround
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still can cause faulty data transfers from/to SPI RAM in some situation.
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config SPIRAM_CACHE_WORKAROUND_STRATEGY_MEMW
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bool "Insert memw after vulnerable instructions (default)"
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config SPIRAM_CACHE_WORKAROUND_STRATEGY_DUPLDST
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bool "Duplicate LD/ST for 32-bit, memw for 8/16 bit"
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config SPIRAM_CACHE_WORKAROUND_STRATEGY_NOPS
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bool "Insert nops between vulnerable loads/stores (old strategy, obsolete)"
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endchoice
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#This needs to be Y only for the dupldst workaround
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config SPIRAM_WORKAROUND_NEED_VOLATILE_SPINLOCK
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bool
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default "y" if SPIRAM_CACHE_WORKAROUND_STRATEGY_DUPLDST
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endmenu
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config SPIRAM_BANKSWITCH_ENABLE
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bool "Enable bank switching for >4MiB external RAM"
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default y
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depends on SPIRAM_USE_MEMMAP || SPIRAM_USE_CAPS_ALLOC || SPIRAM_USE_MALLOC
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help
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The ESP32 only supports 4MiB of external RAM in its address space. The hardware does support larger
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memories, but these have to be bank-switched in and out of this address space. Enabling this allows you
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to reserve some MMU pages for this, which allows the use of the esp_himem api to manage these banks.
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#Note that this is limited to 62 banks, as esp_spiram_writeback_cache needs some kind of mapping of
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#some banks below that mark to work. We cannot at this moment guarantee this to exist when himem is
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#enabled.
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If spiram 2T mode is enabled, the size of 64Mbit psram will be changed as 32Mbit, so himem will be
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unusable.
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config SPIRAM_BANKSWITCH_RESERVE
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int "Amount of 32K pages to reserve for bank switching"
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depends on SPIRAM_BANKSWITCH_ENABLE
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default 8
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range 1 62
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help
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Select the amount of banks reserved for bank switching. Note that the amount of RAM allocatable with
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malloc/esp_heap_alloc_caps will decrease by 32K for each page reserved here.
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Note that this reservation is only actually done if your program actually uses the himem API. Without
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any himem calls, the reservation is not done and the original amount of memory will be available
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to malloc/esp_heap_alloc_caps.
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config SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY
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bool "Allow external memory as an argument to xTaskCreateStatic"
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default n
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depends on SPIRAM_USE_MALLOC
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help
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Because some bits of the ESP32 code environment cannot be recompiled with the cache workaround,
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normally tasks cannot be safely run with their stack residing in external memory; for this reason
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xTaskCreate and friends always allocate stack in internal memory and xTaskCreateStatic will check if
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the memory passed to it is in internal memory. If you have a task that needs a large amount of stack
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and does not call on ROM code in any way (no direct calls, but also no Bluetooth/WiFi), you can try to
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disable this and use xTaskCreateStatic to create the tasks stack in external memory.
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choice SPIRAM_OCCUPY_SPI_HOST
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prompt "SPI host to use for 32MBit PSRAM"
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default SPIRAM_OCCUPY_VSPI_HOST
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depends on SPIRAM_SPEED_80M
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help
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When both flash and PSRAM is working under 80MHz, and the PSRAM is of type 32MBit, one of the HSPI/VSPI
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host will be used to output the clock. Select which one to use here.
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config SPIRAM_OCCUPY_HSPI_HOST
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bool "HSPI host (SPI2)"
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config SPIRAM_OCCUPY_VSPI_HOST
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bool "VSPI host (SPI3)"
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config SPIRAM_OCCUPY_NO_HOST
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bool "Will not try to use any host, will abort if not able to use the PSRAM"
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endchoice
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menu "PSRAM clock and cs IO for ESP32-DOWD"
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config D0WD_PSRAM_CLK_IO
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int "PSRAM CLK IO number"
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depends on ESP32_SPIRAM_SUPPORT
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range 0 33
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default 17
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help
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The PSRAM CLOCK IO can be any unused GPIO, user can config it based on hardware design. If user use
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1.8V flash and 1.8V psram, this value can only be one of 6, 7, 8, 9, 10, 11, 16, 17.
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config D0WD_PSRAM_CS_IO
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int "PSRAM CS IO number"
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depends on ESP32_SPIRAM_SUPPORT
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range 0 33
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default 16
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help
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The PSRAM CS IO can be any unused GPIO, user can config it based on hardware design. If user use
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1.8V flash and 1.8V psram, this value can only be one of 6, 7, 8, 9, 10, 11, 16, 17.
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endmenu
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menu "PSRAM clock and cs IO for ESP32-D2WD"
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config D2WD_PSRAM_CLK_IO
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int "PSRAM CLK IO number"
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depends on ESP32_SPIRAM_SUPPORT
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range 0 33
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default 9
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help
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User can config it based on hardware design. For ESP32-D2WD chip, the psram can only be 1.8V psram,
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so this value can only be one of 6, 7, 8, 9, 10, 11, 16, 17.
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config D2WD_PSRAM_CS_IO
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int "PSRAM CS IO number"
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depends on ESP32_SPIRAM_SUPPORT
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range 0 33
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default 10
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help
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User can config it based on hardware design. For ESP32-D2WD chip, the psram can only be 1.8V psram,
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so this value can only be one of 6, 7, 8, 9, 10, 11, 16, 17.
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endmenu
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menu "PSRAM clock and cs IO for ESP32-PICO"
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config PICO_PSRAM_CS_IO
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int "PSRAM CS IO number"
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depends on ESP32_SPIRAM_SUPPORT
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range 0 33
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default 10
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help
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The PSRAM CS IO can be any unused GPIO, user can config it based on hardware design.
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For ESP32-PICO chip, the psram share clock with flash, so user do not need to configure the clock
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IO.
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For the reference hardware design, please refer to
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https://www.espressif.com/sites/default/files/documentation/esp32-pico-d4_datasheet_en.pdf
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endmenu
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config SPIRAM_CUSTOM_SPIWP_SD3_PIN
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bool "Use custom SPI PSRAM WP(SD3) Pin when flash pins set in eFuse (read help)"
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depends on IDF_TARGET_ESP32 && (ESPTOOLPY_FLASHMODE_DIO || ESPTOOLPY_FLASHMODE_DOUT)
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default y if SPIRAM_SPIWP_SD3_PIN != 7 # backwards compatibility, can remove in IDF 5
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default n
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help
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This setting is only used if the SPI flash pins have been overridden by setting the eFuses
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SPI_PAD_CONFIG_xxx, and the SPI flash mode is DIO or DOUT.
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When this is the case, the eFuse config only defines 3 of the 4 Quad I/O data pins. The WP pin (aka
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ESP32 pin "SD_DATA_3" or SPI flash pin "IO2") is not specified in eFuse. The psram only has QPI
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mode, so a WP pin setting is necessary.
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If this config item is set to N (default), the correct WP pin will be automatically used for any
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Espressif chip or module with integrated flash. If a custom setting is needed, set this config item
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to Y and specify the GPIO number connected to the WP pin.
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When flash mode is set to QIO or QOUT, the PSRAM WP pin will be set the same as the SPI Flash WP pin
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configured in the bootloader.
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config SPIRAM_SPIWP_SD3_PIN
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int "Custom SPI PSRAM WP(SD3) Pin"
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depends on IDF_TARGET_ESP32 && (ESPTOOLPY_FLASHMODE_DIO || ESPTOOLPY_FLASHMODE_DOUT)
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#depends on SPIRAM_CUSTOM_SPIWP_SD3_PIN # backwards compatibility, can uncomment in IDF 5
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range 0 33
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default 7
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help
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The option "Use custom SPI PSRAM WP(SD3) pin" must be set or this value is ignored
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If burning a customized set of SPI flash pins in eFuse and using DIO or DOUT mode for flash, set this
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value to the GPIO number of the SPIRAM WP pin.
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config SPIRAM_2T_MODE
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bool "Enable SPI PSRAM 2T mode"
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depends on ESP32_SPIRAM_SUPPORT
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default "n"
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help
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Enable this option to fix single bit errors inside 64Mbit PSRAM.
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Some 64Mbit PSRAM chips have a hardware issue in the RAM which causes bit errors at multiple
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fixed bit positions.
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Note: If this option is enabled, the 64Mbit PSRAM chip will appear to be 32Mbit in size.
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Applications will not be affected unless the use the esp_himem APIs, which are not supported
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in 2T mode.
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endmenu # "SPI RAM config"
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config ESP32_MEMMAP_TRACEMEM
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bool
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default "n"
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config ESP32_MEMMAP_TRACEMEM_TWOBANKS
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bool
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default "n"
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config ESP32_TRAX
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bool "Use TRAX tracing feature"
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default "n"
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select ESP32_MEMMAP_TRACEMEM
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help
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The ESP32 contains a feature which allows you to trace the execution path the processor
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has taken through the program. This is stored in a chunk of 32K (16K for single-processor)
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of memory that can't be used for general purposes anymore. Disable this if you do not know
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what this is.
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config ESP32_TRAX_TWOBANKS
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bool "Reserve memory for tracing both pro as well as app cpu execution"
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default "n"
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depends on ESP32_TRAX && !FREERTOS_UNICORE
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select ESP32_MEMMAP_TRACEMEM_TWOBANKS
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help
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The ESP32 contains a feature which allows you to trace the execution path the processor
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has taken through the program. This is stored in a chunk of 32K (16K for single-processor)
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of memory that can't be used for general purposes anymore. Disable this if you do not know
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what this is.
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# Memory to reverse for trace, used in linker script
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config ESP32_TRACEMEM_RESERVE_DRAM
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hex
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default 0x8000 if ESP32_MEMMAP_TRACEMEM && ESP32_MEMMAP_TRACEMEM_TWOBANKS
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default 0x4000 if ESP32_MEMMAP_TRACEMEM && !ESP32_MEMMAP_TRACEMEM_TWOBANKS
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default 0x0
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choice ESP32_UNIVERSAL_MAC_ADDRESSES
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bool "Number of universally administered (by IEEE) MAC address"
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default ESP32_UNIVERSAL_MAC_ADDRESSES_FOUR
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help
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Configure the number of universally administered (by IEEE) MAC addresses.
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During initialization, MAC addresses for each network interface are generated or derived from a
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single base MAC address.
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If the number of universal MAC addresses is four, all four interfaces (WiFi station, WiFi softap,
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Bluetooth and Ethernet) receive a universally administered MAC address. These are generated
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sequentially by adding 0, 1, 2 and 3 (respectively) to the final octet of the base MAC address.
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If the number of universal MAC addresses is two, only two interfaces (WiFi station and Bluetooth)
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receive a universally administered MAC address. These are generated sequentially by adding 0
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and 1 (respectively) to the base MAC address. The remaining two interfaces (WiFi softap and Ethernet)
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receive local MAC addresses. These are derived from the universal WiFi station and Bluetooth MAC
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addresses, respectively.
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When using the default (Espressif-assigned) base MAC address, either setting can be used. When using
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a custom universal MAC address range, the correct setting will depend on the allocation of MAC
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addresses in this range (either 2 or 4 per device.)
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config ESP32_UNIVERSAL_MAC_ADDRESSES_TWO
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bool "Two"
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select ESP_MAC_ADDR_UNIVERSE_WIFI_STA
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select ESP_MAC_ADDR_UNIVERSE_BT
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config ESP32_UNIVERSAL_MAC_ADDRESSES_FOUR
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bool "Four"
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select ESP_MAC_ADDR_UNIVERSE_WIFI_STA
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select ESP_MAC_ADDR_UNIVERSE_WIFI_AP
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select ESP_MAC_ADDR_UNIVERSE_BT
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select ESP_MAC_ADDR_UNIVERSE_ETH
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endchoice
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config ESP32_UNIVERSAL_MAC_ADDRESSES
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int
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default 2 if ESP32_UNIVERSAL_MAC_ADDRESSES_TWO
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default 4 if ESP32_UNIVERSAL_MAC_ADDRESSES_FOUR
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config ESP32_ULP_COPROC_ENABLED
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bool "Enable Ultra Low Power (ULP) Coprocessor"
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default "n"
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help
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Set to 'y' if you plan to load a firmware for the coprocessor.
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If this option is enabled, further coprocessor configuration will appear in the Components menu.
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config ESP32_ULP_COPROC_RESERVE_MEM
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int
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prompt "RTC slow memory reserved for coprocessor" if ESP32_ULP_COPROC_ENABLED
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default 512 if ESP32_ULP_COPROC_ENABLED
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range 32 8176 if ESP32_ULP_COPROC_ENABLED
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default 0 if !ESP32_ULP_COPROC_ENABLED
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range 0 0 if !ESP32_ULP_COPROC_ENABLED
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help
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Bytes of memory to reserve for ULP coprocessor firmware & data.
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Data is reserved at the beginning of RTC slow memory.
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config ESP32_DEBUG_OCDAWARE
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bool "Make exception and panic handlers JTAG/OCD aware"
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default y
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select FREERTOS_DEBUG_OCDAWARE
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help
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The FreeRTOS panic and unhandled exception handers can detect a JTAG OCD debugger and
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instead of panicking, have the debugger stop on the offending instruction.
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config ESP32_BROWNOUT_DET
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bool "Hardware brownout detect & reset"
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default y
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help
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The ESP32 has a built-in brownout detector which can detect if the voltage is lower than
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a specific value. If this happens, it will reset the chip in order to prevent unintended
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behaviour.
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choice ESP32_BROWNOUT_DET_LVL_SEL
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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 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"
|
|
select ESP_TIME_FUNCS_USE_RTC_TIMER
|
|
select ESP_TIME_FUNCS_USE_ESP_TIMER
|
|
config ESP32_TIME_SYSCALL_USE_RTC
|
|
bool "RTC"
|
|
select ESP_TIME_FUNCS_USE_RTC_TIMER
|
|
config ESP32_TIME_SYSCALL_USE_FRC1
|
|
bool "High-resolution timer"
|
|
select ESP_TIME_FUNCS_USE_ESP_TIMER
|
|
config ESP32_TIME_SYSCALL_USE_NONE
|
|
bool "None"
|
|
select ESP_TIME_FUNCS_USE_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_XN 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_XP pin and
|
|
ground. 32K_XP 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"
|
|
select ESP_SYSTEM_RTC_EXT_XTAL
|
|
config ESP32_RTC_CLK_SRC_EXT_OSC
|
|
bool "External 32kHz oscillator at 32K_XN pin"
|
|
config ESP32_RTC_CLK_SRC_INT_8MD256
|
|
bool "Internal 8.5MHz oscillator, divided by 256 (~33kHz)"
|
|
endchoice
|
|
|
|
choice ESP32_RTC_EXT_CRYST_ADDIT_CURRENT_METHOD
|
|
prompt "Additional current for external 32kHz crystal"
|
|
depends on ESP32_RTC_CLK_SRC_EXT_CRYS
|
|
depends on ESP32_REV_MIN <= 1
|
|
default ESP32_RTC_EXT_CRYST_ADDIT_CURRENT_NONE
|
|
help
|
|
With some 32kHz crystal configurations, the X32N and X32P pins may not have enough
|
|
drive strength to keep the crystal oscillating. Choose the method to provide
|
|
additional current from touchpad 9 to the external 32kHz crystal. Note that
|
|
the deep sleep current is slightly high (4-5uA) and the touchpad and the
|
|
wakeup sources of both touchpad and ULP are not available in method 1 and method 2.
|
|
|
|
This problem is fixed in ESP32 ECO 3, so this workaround is not needed. Setting the
|
|
project configuration to minimum revision ECO3 will disable this option, , allow
|
|
all wakeup sources, and save some code size.
|
|
|
|
- "None" option will not provide additional current to external crystal
|
|
- "Method 1" option can't ensure 100% to solve the external 32k crystal start failed
|
|
issue, but the touchpad can work in this method.
|
|
- "Method 2" option can solve the external 32k issue, but the touchpad can't work
|
|
in this method.
|
|
|
|
config ESP32_RTC_EXT_CRYST_ADDIT_CURRENT_NONE
|
|
bool "None"
|
|
config ESP32_RTC_EXT_CRYST_ADDIT_CURRENT
|
|
bool "Method 1"
|
|
config ESP32_RTC_EXT_CRYST_ADDIT_CURRENT_V2
|
|
bool "Method 2"
|
|
endchoice
|
|
|
|
config ESP32_RTC_CLK_CAL_CYCLES
|
|
int "Number of cycles for RTC_SLOW_CLK calibration"
|
|
default 3000 if ESP32_RTC_CLK_SRC_EXT_CRYS || ESP32_RTC_CLK_SRC_EXT_OSC || ESP32_RTC_CLK_SRC_INT_8MD256
|
|
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_CAL_RETRY
|
|
int "Number of attempts to repeat 32k XTAL calibration"
|
|
default 1
|
|
depends on ESP32_RTC_CLK_SRC_EXT_CRYS
|
|
help
|
|
Number of attempts to repeat 32k XTAL calibration
|
|
before giving up and switching to the internal RC.
|
|
Increase this option if the 32k crystal oscillator
|
|
does not start and switches to internal RC.
|
|
|
|
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 ESP-IDF v2.1"
|
|
select ESP32_COMPATIBLE_PRE_V3_1_BOOTLOADERS
|
|
default n
|
|
help
|
|
Bootloaders before ESP-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_COMPATIBLE_PRE_V3_1_BOOTLOADERS
|
|
bool "App compatible with bootloader and partition table before ESP-IDF v3.1"
|
|
default n
|
|
help
|
|
Partition tables before ESP-IDF V3.1 do not contain an MD5 checksum
|
|
field, and the bootloader before ESP-IDF v3.1 cannot read a partition
|
|
table that contains an MD5 checksum field.
|
|
|
|
Enable this option only if your app needs to boot on a bootloader and/or
|
|
partition table that was generated from a version *before* ESP-IDF v3.1.
|
|
|
|
If this option and Flash Encryption are enabled at the same time, and any
|
|
data partitions in the partition table are marked Encrypted, then the
|
|
partition encrypted flag should be manually verified in the app before accessing
|
|
the partition (see CVE-2021-27926).
|
|
|
|
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.
|
|
|
|
config ESP32_IRAM_AS_8BIT_ACCESSIBLE_MEMORY
|
|
bool "Enable IRAM as 8 bit accessible memory"
|
|
depends on FREERTOS_UNICORE
|
|
help
|
|
If enabled, application can use IRAM as byte accessible region for storing data
|
|
(Note: IRAM region cannot be used as task stack)
|
|
|
|
This is possible due to handling of exceptions `LoadStoreError (3)` and `LoadStoreAlignmentError (9)`
|
|
Each unaligned read/write access will incur a penalty of maximum of 167 CPU cycles.
|
|
|
|
endmenu # ESP32-Specific
|