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NuttxPortingGuide.html edited online with Bitbucket

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Gregory Nutt 2018-03-22 02:00:51 +00:00
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<i>Chip/SoC specific files</i>. <i>Chip/SoC specific files</i>.
Each processor processor architecture is embedded in chip or <i>System-on-a-Chip</i> (SoC) architecture. Each processor architecture is embedded in chip or <i>System-on-a-Chip</i> (SoC) architecture.
The full chip architecture includes the processor architecture plus chip-specific interrupt logic, The full chip architecture includes the processor architecture plus chip-specific interrupt logic,
clocking logic, general purpose I/O (GPIO) logic, and specialized, internal peripherals (such as UARTs, USB, etc.). clocking logic, general purpose I/O (GPIO) logic, and specialized, internal peripherals (such as UARTs, USB, etc.).
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The definitions in that header file provide the common interface between NuttX and the architecture-specific implementation in <code>arch/</code>. The definitions in that header file provide the common interface between NuttX and the architecture-specific implementation in <code>arch/</code>.
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<blockquote><small> <blockquote><small>
<code>up_</code> is supposed to stand for microprocessor; the <code>u</code> is like the Greek letter micron: <i>µ</i>. So it would be <code>µP</code> which is a common shortening of the word microprocessor. I don't like that name very much. I wish I would have used a more obvious prefix like <code>arch_</code> instead -- then I would not have to answer this question so often. <code>up_</code> is supposed to stand for microprocessor; the <code>u</code> is like the Greek letter micron: <i><EFBFBD></i>. So it would be <code><EFBFBD>P</code> which is a common shortening of the word microprocessor. I don't like that name very much. I wish I would have used a more obvious prefix like <code>arch_</code> instead -- then I would not have to answer this question so often.
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