menu "ESP32S2-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_ESP32S2 choice ESP32S2_DEFAULT_CPU_FREQ_MHZ prompt "CPU frequency" default ESP32S2_DEFAULT_CPU_FREQ_160 if !IDF_ENV_FPGA default ESP32S2_DEFAULT_CPU_FREQ_FPGA if IDF_ENV_FPGA help CPU frequency to be set on application startup. config ESP32S2_DEFAULT_CPU_FREQ_FPGA depends on IDF_ENV_FPGA bool "FPGA" config ESP32S2_DEFAULT_CPU_FREQ_80 bool "80 MHz" config ESP32S2_DEFAULT_CPU_FREQ_160 bool "160 MHz" config ESP32S2_DEFAULT_CPU_FREQ_240 bool "240 MHz" endchoice config ESP32S2_DEFAULT_CPU_FREQ_MHZ int default 40 if IDF_ENV_FPGA default 80 if ESP32S2_DEFAULT_CPU_FREQ_80 default 160 if ESP32S2_DEFAULT_CPU_FREQ_160 default 240 if ESP32S2_DEFAULT_CPU_FREQ_240 menu "Cache config" choice ESP32S2_INSTRUCTION_CACHE_SIZE prompt "Instruction cache size" default ESP32S2_INSTRUCTION_CACHE_8KB help Instruction cache size to be set on application startup. If you use 8KB instruction cache rather than 16KB instruction cache, then the other 8KB will be added to the heap. config ESP32S2_INSTRUCTION_CACHE_8KB bool "8KB" config ESP32S2_INSTRUCTION_CACHE_16KB bool "16KB" endchoice choice ESP32S2_INSTRUCTION_CACHE_LINE_SIZE prompt "Instruction cache line size" default ESP32S2_INSTRUCTION_CACHE_LINE_32B help Instruction cache line size to be set on application startup. config ESP32S2_INSTRUCTION_CACHE_LINE_16B bool "16 Bytes" config ESP32S2_INSTRUCTION_CACHE_LINE_32B bool "32 Bytes" endchoice choice ESP32S2_DATA_CACHE_SIZE prompt "Data cache size" default ESP32S2_DATA_CACHE_0KB if !ESP32S2_SPIRAM_SUPPORT default ESP32S2_DATA_CACHE_8KB if ESP32S2_SPIRAM_SUPPORT help Data cache size to be set on application startup. If you use 0KB data cache, the other 16KB will be added to the heap If you use 8KB data cache rather than 16KB data cache, the other 8KB will be added to the heap config ESP32S2_DATA_CACHE_0KB depends on !ESP32S2_SPIRAM_SUPPORT bool "0KB" config ESP32S2_DATA_CACHE_8KB bool "8KB" config ESP32S2_DATA_CACHE_16KB bool "16KB" endchoice choice ESP32S2_DATA_CACHE_LINE_SIZE prompt "Data cache line size" default ESP32S2_DATA_CACHE_LINE_32B help Data cache line size to be set on application startup. config ESP32S2_DATA_CACHE_LINE_16B bool "16 Bytes" config ESP32S2_DATA_CACHE_LINE_32B bool "32 Bytes" endchoice config ESP32S2_INSTRUCTION_CACHE_WRAP bool "Enable instruction cache wrap" default "n" help If enabled, instruction cache will use wrap mode to read spi flash (maybe spiram). The wrap length equals to INSTRUCTION_CACHE_LINE_SIZE. However, it depends on complex conditions. config ESP32S2_DATA_CACHE_WRAP bool "Enable data cache wrap" default "n" help If enabled, data cache will use wrap mode to read spiram (maybe spi flash). The wrap length equals to DATA_CACHE_LINE_SIZE. However, it depends on complex conditions. endmenu # Cache config # Note: to support SPIRAM across multiple chips, check CONFIG_SPIRAM # instead config ESP32S2_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 ESP32S2_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_ESPPSRAM16 bool "ESP-PSRAM16 or APS1604" 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 2097152 if SPIRAM_TYPE_ESPPSRAM16 default 4194304 if SPIRAM_TYPE_ESPPSRAM32 default 8388608 if SPIRAM_TYPE_ESPPSRAM64 default 0 menu "PSRAM clock and cs IO for ESP32S2" depends on ESP32S2_SPIRAM_SUPPORT config DEFAULT_PSRAM_CLK_IO int "PSRAM CLK IO number" range 0 33 default 30 help The PSRAM CLOCK IO can be any unused GPIO, user can config it based on hardware design. config DEFAULT_PSRAM_CS_IO int "PSRAM CS IO number" range 0 33 default 26 help The PSRAM CS IO can be any unused GPIO, user can config it based on hardware design. endmenu config SPIRAM_FETCH_INSTRUCTIONS bool "Cache fetch instructions from SPI RAM" default n help If enabled, instruction in flash will be copied into SPIRAM. If SPIRAM_RODATA also enabled, you can run the instruction when erasing or programming the flash. config SPIRAM_RODATA bool "Cache load read only data from SPI RAM" default n help If enabled, radata in flash will be copied into SPIRAM. If SPIRAM_FETCH_INSTRUCTIONS also enabled, you can run the instruction when erasing or programming the flash. choice SPIRAM_SPEED prompt "Set RAM clock speed" default SPIRAM_SPEED_40M help Select the speed for the SPI RAM chip. config SPIRAM_SPEED_80M bool "80MHz clock speed" config SPIRAM_SPEED_40M bool "40Mhz clock speed" config SPIRAM_SPEED_26M bool "26Mhz clock speed" config SPIRAM_SPEED_20M bool "20Mhz clock speed" endchoice # insert non-chip-specific items here source "$IDF_PATH/components/esp_hw_support/Kconfig.spiram.common" endmenu config ESP32S2_MEMMAP_TRACEMEM bool default "n" config ESP32S2_MEMMAP_TRACEMEM_TWOBANKS bool default "n" config ESP32S2_TRAX bool "Use TRAX tracing feature" default "n" select ESP32S2_MEMMAP_TRACEMEM help The ESP32S2 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 ESP32S2_TRACEMEM_RESERVE_DRAM hex default 0x8000 if ESP32S2_MEMMAP_TRACEMEM && ESP32S2_MEMMAP_TRACEMEM_TWOBANKS default 0x4000 if ESP32S2_MEMMAP_TRACEMEM && !ESP32S2_MEMMAP_TRACEMEM_TWOBANKS default 0x0 choice ESP32S2_TIME_SYSCALL prompt "Timers used for gettimeofday function" default ESP32S2_TIME_SYSCALL_USE_RTC_SYSTIMER 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 ESP32S2_TIME_SYSCALL_USE_RTC_SYSTIMER bool "RTC and high-resolution timer" select ESP_TIME_FUNCS_USE_RTC_TIMER select ESP_TIME_FUNCS_USE_ESP_TIMER config ESP32S2_TIME_SYSCALL_USE_RTC bool "RTC" select ESP_TIME_FUNCS_USE_RTC_TIMER config ESP32S2_TIME_SYSCALL_USE_SYSTIMER bool "High-resolution timer" select ESP_TIME_FUNCS_USE_ESP_TIMER config ESP32S2_TIME_SYSCALL_USE_NONE bool "None" select ESP_TIME_FUNCS_USE_NONE endchoice choice ESP32S2_RTC_CLK_SRC prompt "RTC clock source" default ESP32S2_RTC_CLK_SRC_INT_RC help Choose which clock is used as RTC clock source. - "Internal 90kHz 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 8MHz oscillator divided by 256" option results in higher deep sleep current (by 5uA) but has better frequency stability than the internal 90kHz oscillator. It does not require external components. config ESP32S2_RTC_CLK_SRC_INT_RC bool "Internal 90kHz RC oscillator" config ESP32S2_RTC_CLK_SRC_EXT_CRYS bool "External 32kHz crystal" select ESP_SYSTEM_RTC_EXT_XTAL config ESP32S2_RTC_CLK_SRC_EXT_OSC bool "External 32kHz oscillator at 32K_XN pin" select ESP_SYSTEM_RTC_EXT_OSC config ESP32S2_RTC_CLK_SRC_INT_8MD256 bool "Internal 8MHz oscillator, divided by 256 (~32kHz)" endchoice config ESP32S2_RTC_CLK_CAL_CYCLES int "Number of cycles for RTC_SLOW_CLK calibration" default 3000 if ESP32S2_RTC_CLK_SRC_EXT_CRYS || ESP32S2_RTC_CLK_SRC_EXT_OSC || ESP32S2_RTC_CLK_SRC_INT_8MD256 default 576 if ESP32S2_RTC_CLK_SRC_INT_RC range 0 125000 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: - 90000 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 ESP32S2_RTC_XTAL_CAL_RETRY int "Number of attempts to repeat 32k XTAL calibration" default 3 depends on ESP32S2_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 ESP32S2_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 ESP32S2_KEEP_USB_ALIVE bool "Keep USB peripheral enabled at start up" if !ESP_CONSOLE_USB_CDC default y if ESP_CONSOLE_USB_CDC help During the application initialization process, all the peripherals except UARTs and timers are reset. Enable this option to keep USB peripheral enabled. This option is automatically enabled if "USB CDC" console is selected. config ESP32S2_RTCDATA_IN_FAST_MEM bool "Place RTC_DATA_ATTR and RTC_RODATA_ATTR variables into RTC fast memory segment" default n 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. config ESP32S2_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 ESP32S2_FIXED_STATIC_RAM_SIZE config ESP32S2_FIXED_STATIC_RAM_SIZE hex "Fixed Static RAM size" default 0x10000 range 0 0x34000 depends on ESP32S2_USE_FIXED_STATIC_RAM_SIZE help RAM size dedicated for static variables (.data & .bss sections). endmenu # ESP32S2-Specific