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Week #4 : Oct  9
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Timer, Interrupt, Exception in ARM

Materials
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- `Timer, Interrupt, Exception in ARM</embedded/2012w4/tim-int-ex.pdf>`_
- `Concurrent processes and real-time scheduling</embedded/2012w4/concurrency-scheduling.pdf>`_
- `Co-routines vs. Tasks<http://www.freertos.org/taskandcr.html>`_
- `The Architecture of Open Source Applications: FreeRTOS<http://www.aosabook.org/en/freertos.html>`_
  * `簡體中文翻譯<http://www.ituring.com.cn/article/4063>`_

Reference
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- `FreeRTOS Implementation<http://www.freertos.org/implementation/main.html>`_
- ARM "Cortex-M3 Technical Reference Manual"
  * http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0337i/
- ARMv7-M Architecture Reference Manual
  * http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0403c/