本代码适合嵌入式系统（爱普生S1C33209）硬件驱动，其中包括led驱动，key驱动，timer驱动，以及必须的boot，vector等源代码。-The code for embedded systems (Epson S1C33209) hardware drivers, including the led driver, key-driven, timer-driven, and the need of the boot, vector, such as source code.