http://www.cnblogs.com/jianyungsun/archive/2011/05/12/2044898.html
1. OPENCORES.ORG
这里提供非常多,非常好的PLD了内核,8051内核就可以在里面找到。
进入后,选择project或者由http//www.opencores.org/browse.cgi/by_category进入。
http://www.opencores.org/polls.cgi/list
OpenCores is a loose collection of people who are interested in developing hardware, with a similar ethos to the free software movement. Currently the emphasis is on digital modules called ''cores'', since FPGAs have reduced the incremental cost of a core to approximately zero. Activity is centered around the opencores web site
http://www.opencores.org - 中文
2. FPGAs are fun
提供了大量的关于FPGA应用的文章,项目实际例子。强烈推荐
http://www.fpga4fun.com - 外文
3. Open Collector
收集了大量的开源硬件,内核.它的分类非常清晰,强烈推荐
http://opencollector.org/summary.php - 外文
4. The First Stop for the Latest ICs and Components
非常好的关于微处理器,DSP,可以编程控制器资讯的网站,更新非常快。强烈推荐一些领导级别的人常去,了解行业动态!
http://www.eeproductcenter.com - 外文
5. FPGA和CPLD可编程逻辑器件 - 莱迪思半导体公司