各种规约电表程序的(包手DL645,威胜,西门子等,的库程序)极大方便远程抄表系统-Statute meter various procedures (including hand DL645, Granville wins, and Siemens. in the process) greatly facilitate remote meter reading system

嵌入式Linux应用程序开发详解，写的个人认为相当不错-Embedded Linux application development detailed, written personally think that pretty well