说明：  1.1 YLP2440开发板简介 YLP2440开发板硬件资源: 中央处理器 ── CPU: Samsung S3C2440A，主频400MHz； 外部存储器 ── SDRAM：64MB； ── NAND Flash：64MB（K9F1208，用户可自己更换为16M、32M或128M的NandFlash） 串口 ── 两个五线异步串行口，波特率高达115200bps； 网络接口 ── 一个10M/100M网口，采用DM9000AEP，带联接和传输指示灯；
(1.1 YLP2440 Development Board Introduction YLP2440 development board hardware resources: CPU ─ ─ CPU: Samsung S3C2440A, clocked at 400MHz external memory ─ ─ SDRAM: 64MB ─ ─ NAND Flash: 64MB (K9F1208, users can replace themselves 16M, 32M or 128M of NandFlash) ─ ─ two five-wire serial asynchronous serial port, baud rate up to 115200bps network interface ─ ─ a 10M/100M Ethernet ports, with DM9000AEP, with the connection and transmission indicator light )