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- menuconfig RT_USING_SERIAL
- bool "Using Serial device drivers"
- select RT_USING_DEVICE_IPC
- select RT_USING_DEVICE
- default y
- help
- Enable the UART/USART driver framework that backs the console and TTY
- devices. Required for shell access or any serial communications.
- if RT_USING_SERIAL
- choice RT_USING_SERIAL_VERSION
- prompt "Choice Serial version"
- default RT_USING_SERIAL_V1
- config RT_USING_SERIAL_V1
- bool "RT_USING_SERIAL_V1"
- config RT_USING_SERIAL_V2
- bool "RT_USING_SERIAL_V2"
- help
- Select between the legacy serial core (V1) and the newer buffer/ISR
- design (V2). Choose V2 for advanced buffer strategies, otherwise stay
- with V1 for compatibility.
- endchoice
- choice RT_USING_SERIAL_MODE
- prompt "Choice Serial version"
- depends on RT_USING_SERIAL_V2
- default RT_SERIAL_BUF_STRATEGY_OVERWRITE
- config RT_SERIAL_BUF_STRATEGY_DROP
- bool "drop new incoming data when the buffer is full"
- config RT_SERIAL_BUF_STRATEGY_OVERWRITE
- bool "overwrite old data when the buffer is full"
- help
- Define how V2 RX buffers behave on overflow: drop new bytes or
- overwrite oldest data.
- endchoice
- config RT_SERIAL_USING_DMA
- bool "Enable serial DMA mode"
- default y
- help
- Allow serial drivers to use DMA for RX/TX to reduce CPU load. Turn
- off if your SoC lacks UART DMA support.
- config RT_SERIAL_RB_BUFSZ
- int "Set RX buffer size"
- depends on !RT_USING_SERIAL_V2
- default 64
- help
- Size of the legacy (V1) receive ring buffer in bytes.
- config RT_USING_SERIAL_BYPASS
- bool "Using serial bypass"
- default n
- help
- Enable bypass mode that forwards data between two serial devices,
- useful for debugging or bridging.
- endif
- if RT_USING_DM && RT_USING_SERIAL
- rsource "device/Kconfig"
- endif
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