# Copyright (c) 2020 HAW Hamburg # 2022 Gunar Schorcht # # This file is subject to the terms and conditions of the GNU Lesser # General Public License v2.1. See the file LICENSE in the top level # directory for more details. config CPU_FAM_ESP32 bool select CPU_COMMON_ESP32X select CPU_CORE_XTENSA_LX6 config CPU_FAM default "esp32" if CPU_FAM_ESP32 ## CPU Models config CPU_MODEL_ESP32_WROOM_32 bool select CPU_FAM_ESP32 config CPU_MODEL_ESP32_WROVER bool select CPU_FAM_ESP32 config CPU_MODEL_ESP32_WROVER_B bool select CPU_FAM_ESP32 config CPU_MODEL_ESP32_WROVER_E bool select CPU_FAM_ESP32 config CPU_MODEL_ESP32_D0WD bool select CPU_FAM_ESP32 config CPU_MODEL depends on CPU_FAM_ESP32 default "esp32-wroom_32" if CPU_MODEL_ESP32_WROOM_32 default "esp32-wrover" if CPU_MODEL_ESP32_WROVER default "esp32-wrover" if CPU_MODEL_ESP32_WROVER_B default "esp32-wrover" if CPU_MODEL_ESP32_WROVER_E default "esp32-d0wd" if CPU_MODEL_ESP32_D0WD if CPU_FAM_ESP32 menu "ESP32 specific configurations" depends on HAS_ARCH_ESP32 # define configuration menu entries for ESP32 variant (family) choice bool "CPU clock frequency" default ESP32_DEFAULT_CPU_FREQ_MHZ_80 help CPU clock frequency used (default 80 MHz). Please note that peripherals such as I2C or SPI might not work at the specified clock frequency if the selected CPU clock frequency is too low. These peripherals are clocked by the APB clock, which has a clock rate of 80 MHz for CPU clock frequencies greater than or equal to 80 MHz, but is equal to the CPU clock frequency for CPU clock frequencies less than 80 MHz. Thus, for SPI, the APB clock rate must be at least five times the SPI clock rate. For the I2C hardware implementation, the APB clock rate must be at least 40 times the I2C clock rate. For the I2C software implementation, the maximum I2C clock rate is 1/200 times the CPU clock rate. config ESP32_DEFAULT_CPU_FREQ_MHZ_2 bool "2 MHz" config ESP32_DEFAULT_CPU_FREQ_MHZ_5 bool "5 MHz" config ESP32_DEFAULT_CPU_FREQ_MHZ_10 bool "10 MHz" config ESP32_DEFAULT_CPU_FREQ_MHZ_20 bool "20 MHz" config ESP32_DEFAULT_CPU_FREQ_MHZ_40 bool "40 MHz" config ESP32_DEFAULT_CPU_FREQ_MHZ_80 bool "80 MHz" config ESP32_DEFAULT_CPU_FREQ_MHZ_160 bool "160 MHz" config ESP32_DEFAULT_CPU_FREQ_MHZ_240 bool "240 MHz" endchoice # import configuration menu entries that are common for all ESP32x SoCs rsource "Kconfig.common" endmenu endif # CPU_FAM_ESP32