Abstract: Structure an application system using the 32-bit ARM7TDMI core microcontroller S3C4510B manufactured by Sungsang Corporation.Realize the remap of memory address,the control of the interrupt,the communication of series,the interface of LCD and keyboard.On the basis of the above embedded in the operating system μC/OS-Ⅱ,it will manage the LCD,the keyboard and multi-task structuring a plat for the development and the application of the 32-bit microcontroller.

Key words: embedded system； interrupt； task； semaphore； MailBox；