2d59b75d69
When using asynchronous API, transfer will fail if the source buffer is located in a region that cannot be accessed by DMA. This could happen when a buffer is declared const, and placed in flash memory, for example. Workaround this problem by loading the data into a set of temporary caches before passing them to DMA. Signed-off-by: Tahsin Mutlugun <Tahsin.Mutlugun@analog.com>
30 lines
739 B
Text
30 lines
739 B
Text
# MAX32 UART configuration
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# Copyright (c) 2023-2024 Analog Devices, Inc.
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# SPDX-License-Identifier: Apache-2.0
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config UART_MAX32
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bool "MAX32 MCU serial driver"
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default y
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depends on DT_HAS_ADI_MAX32_UART_ENABLED
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select SERIAL_HAS_DRIVER
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select SERIAL_SUPPORT_INTERRUPT
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select PINCTRL
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select SERIAL_SUPPORT_ASYNC if DT_HAS_ADI_MAX32_DMA_ENABLED
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select DMA if UART_ASYNC_API
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help
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This option enables the UART driver for MAX32 family of
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processors.
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Say y if you wish to use serial port on MAX32 MCU.
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if UART_MAX32
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config UART_TX_CACHE_LEN
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int "TX cache buffer size"
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range 8 64
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default 8
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help
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Size of UART transmit buffer that is used when source buffer
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is not located in a DMA-able region.
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endif # UART_MAX32
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