esp-idf/components/ulp/Kconfig

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menu "Ultra Low Power (ULP) Co-processor"
depends on (SOC_ULP_SUPPORTED || SOC_RISCV_COPROC_SUPPORTED)
config ULP_COPROC_ENABLED
bool "Enable Ultra Low Power (ULP) Co-processor"
default "n"
help
Enable this feature if you plan to use the ULP Co-processor.
Once this option is enabled, further ULP co-processor configuration will appear in the menu.
choice ULP_COPROC_TYPE
prompt "ULP Co-processor type"
depends on ULP_COPROC_ENABLED
default ULP_COPROC_TYPE_FSM if IDF_TARGET_ESP32
default ULP_COPROC_TYPE_RISCV if (IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3)
help
Choose the ULP Coprocessor type: ULP FSM (Finite State Machine) or ULP RISC-V.
Please note that ESP32 only supports ULP FSM.
config ULP_COPROC_TYPE_FSM
bool "ULP FSM (Finite State Machine)"
config ULP_COPROC_TYPE_RISCV
bool "ULP RISC-V"
depends on !IDF_TARGET_ESP32
endchoice
config ULP_COPROC_RESERVE_MEM
int
prompt "RTC slow memory reserved for coprocessor"
depends on ULP_COPROC_ENABLED
default 512 if IDF_TARGET_ESP32
default 4096 if (IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3)
range 32 8176
help
Bytes of memory to reserve for ULP Co-processor firmware & data.
Data is reserved at the beginning of RTC slow memory.
menu "ULP RISC-V Settings"
depends on ULP_COPROC_TYPE_RISCV
config ULP_RISCV_UART_BAUDRATE
int
prompt "Baudrate used by the bitbanged ULP RISC-V UART driver"
default 9600
help
The accuracy of the bitbanged UART driver is limited, it is not
recommend to increase the value above 19200.
endmenu
endmenu # Ultra Low Power (ULP) Co-processor