一本描述嵌入式系统8051系列的书籍，书里的编程手法新颖，思想前卫，是很难得的好书
Patterns for Time-Triggered Embedded Systems application with the 8051 (2017-05-05, C51, 25471KB, 下载1次)
c51单片机编程。周兴华写的c51单片机教程。
C51 single-chip programming. Zhou Xinghua wrote c51 single-chip tutorial. (2017-03-16, C51, 25821KB, 下载9次)