mc55上关于GPRS连接和测试的文本，使用AT命令实现测试

ras拨号登录控件及示例-dial-up login controls and sample

AT命令文档，有详细的说明。英文的-AT command documentation, contains a detailed description.

ADSL 接入技术已成为终端用户最主要的宽带接入技术。ADSL 技术的关键是ADSL 调制解调器,即ADSL MODEM。ADSL 用户端调制解调器驱动器是一个宽频带功率放大器,他能不失真放大和传输电话线上已编码的数字信号。 本文通过对ADSL 调制解调器驱动器特点、结构和性能的分析,给出了一种ADSL 用户端MODEM 驱动器的实现电路。该 电路采用具有优良高频的双功率放大器L T1886 ,即使在配置高电平的闭环增益网络后也能保持较低的失真。-ADSL access technology has become the most important end-user broadband access technology. ADSL technology is the key to ADSL modem, that is, ADSLMODEM. ADSL modem client driver is a broadband power amplifier, the distortion that he can not enlarge and transfer telephone lines have been encoded digital signal. Based on the ADSL modem driver characteristics, structure and performance analysis, we give a ADSL client realize MODEM driver circuit. The circuit has an excellent high-frequency power amplifier of the dual-L T1886, even though high in the configuration of the closed-loop gain network also able to maintain low distortion.

XMODEM/YMODEM PROTOCOL REFERENCE

车载终端汇编程序-truck terminal assembler

支持X/Y/Z Modem协议的传输文件的通讯程序 -Commnication libraray supports XMODEM,YMODEM,FAX protocol

gprs协议栈代码.所谓协议栈就是对信息进行多次封装和解封的过程，以便能够在不同的实体间传送信息。本源代码来自Indian Institute of Technology-gprs protocol stack code. The so-called agreement is the right information Stack several Packaging, and the course was cleared, to the various entities to disseminate information. Source code from the Indian Institute of Technology

实现QPSK和BPSK的调制解调程序，仅供参考

TC35I_MC35I_AT命令帮助文档，很不难得的好资料-TC35I_MC35I_AT order to help document, very rare good information

调制解调器网络编程，对用的它的人会看看的-modem network programming, it is the right of people will see the