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title: Week #6 (Mar 31) :: ARM and RTOS
toc: no
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重大事項宣達
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* 今天 17:30 前，確認`分組名單與題目志願表<https://embedded2015.hackpad.com/2015--FvJfghhxBc8>`_

拾人牙慧
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* `陪著跑或是鼓鼓掌<https://www.facebook.com/1383694918554214/photos/a.1439931472930558.1073741830.1383694918554214/1591770817746622/>`_

教材
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* `A Beginner’s Guide on Interrupt Latency - and Interrupt Latency of the ARM Cortex-M processors<http://community.arm.com/docs/DOC-2607>`_ (2013)
* `淺談優先權，從 ARM Cortex-M 到 FreeRTOS 設定<http://enginechang.logdown.com/posts/248297-talking-about-the-priority-from-the-arm-set-cortex-m-to-freertos>`_
  - 什麼是 Interrupt?
  - NVIC (Nested vectored interrupt controller)
  - ARM Cortex-M 每個 Exception 都有自己的優先權
  - 不同架構有不同數量的優先權
  - FreeRTOS 的優先權
  - FreeRTOS 的 Tick/Timer

* `Introduction: the ARM Cortex-M3 Exception / Interrupt</embedded/arm-exceptions.pdf>`_
  - `Interrupt-Driven Input/Output<http://www.eng.auburn.edu/~nelson/courses/elec2220/Interrupt_IO%20part2.pdf>`_
    * Interrupt vectors and vector table
    * Interrupt masks and priorities
    * NVIC
    * STM32F4 external interrupt signals

* ` Linux on Cortex-M3<http://www.linux-arm.org/LinuxKernel/LinuxM3>`_ (2011)