在這篇論文中，我們移植了MicroC/OS-II至基於ARM Cortex-A8 CPU之平台。此外，亦撰寫了基於乙太網路晶片LAN9215的驅動程式。乙太網路驅動程式有不同傳輸模式，在此論文中，我們撰寫實現不同傳輸模式並進行不同模式間效能之比較。
　　實驗結果顯示，在較大封包情況下，利用直接記憶體存取的傳輸模式效能會較佳；而在封包極小時，使用直接記憶體存取的效能卻可能會較使用Interrupt或者是Polling機制來得差。在理論頻寬上限為100Mbps的快速乙太網路上，本論文的實作傳輸速度可達79.6Mbps。在程式大小方面，整份移植完成，包含乙太網路驅動程式，之MicroC/OS-II程式碼大小約為65 Kbytes。

In this thesis, we describe the porting of MicroC/OS-II to the Samsung S5PC100 platform, which is a platform based on ARM Cortex-A8. In addition, we also describe an Ethernet drive implementation based on the LAN9215 Fast Ethernet chip. Different transmission modes have been implemented in the Ethernet driver, and the performance of these modes has been compared in this thesis.
According to the performance results, the performance of the mode based on Direct Memory Access (DMA) has better performance than the other modes when the packet size is large. However, the mode using DMA results in worse performance than the modes using the Interrupt or Polling mechanisms when the packet size is small. The evauation result shows that the implemented Ethernet driver have the maximum peformance of 79.6Mbps. The size of the MicroC/OS-II kernel and the implmeneted Ethernet driver is about 65 Kbytes, which is quite small for many today’s embedded systems.

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