b8e4ced860
The Kconfig configuration was offering alternate routing options for USART peripherals but there was no code which would act on those settings. This patch fixes it. Additionally, since the code is being worked on, this patch also renames USART-related configuration options from AVR_HAS_ to AVR_HAVE_ . This is based on GitHub and mailing list discussion where it was pointed out that other architectures use "HAVE". Patch was tested by choosing few combinations of the configuration and verifying which registers are being set in disassembly. Base configuration was also tested by an application that uses two ports. Signed-off-by: Kerogit <kr.git@kerogit.eu>
Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).
For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.
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Documentation
You can find the current NuttX documentation on the Documentation Page.
Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.
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