问 答 1: AT91RM9200 答 2: 这个好像是ARM9的，有没有ARM7的呢？不过还是谢谢这位兄弟了 答 3: ARM7太少了，4510有，但是停产了，ARM7太少了，4510有，但是停产了，
还是用9200吧，比较好用，而且，价格也便宜。
答 4: 用华邦的W90N740


W90N740 is a 32-bit ARM7TDMI-based MCU. It is a high performance/cost ratio networking oriented microcontroller. W90N740 targets at managed Ethernet switch, management board of data communications and telecommunications system, printer server, and other applications which need a high performance and low cost ommunication processor 答 5: 说句实话，不敢用。不知道什么时候停产！