mega48-1

Test ifnonnull extends DxTestCase.

jlink pro v3固件app，从510d中提取出来的(ulink pro v3 firmware app, extracted the 510d out of)

本源代码用于使用ATMEL公司的AT89C51芯片实现硬件mp3，其中包括有特色的mp3解码算法和U盘功能读写程序。(Source code for use ATMEL Corporation AT89C51 chip hardware mp3, have characteristics which include mp3 decoding algorithm and U disk function to read and write procedures.)

DC motor speed controller

16×2点阵字符型LCD模块间接控制电路程序(16 × 2 dot matrix character LCD module control circuit indirect procedures)

作者 raojun 自己写的一个用位带方式操作单片机的一个demo！(The author raojun himself wrote a demo to operate a single chip computer with a bit of bit.)

说明：  该算法是基于RBF神经网络整定的PID控制 分享一下，希望对大家有所帮助(The algorithm is based on the RBF neural network-tuning of PID control to share the hope of U.S. help)

老板经常向我们灌输的一种51程序结构，可以说是很经典，基本能使用大部分MCU程序框架编写；(The boss often to instill a 51 program structure, is classic, basic procedural framework be able to use most of the MCU write )

反应测试仪，测人的反应速度，精确到几百毫秒！通过按键测试！(Reaction tester, measuring people' s reaction speed, accurate to a few hundred milliseconds! Through the key test!)

使用STC89c58RD+系列单片机控制手机收发短信息的原理、硬件电路、PDU数据格式和短信息发送/接收程序，同时给出了一个应用实例。GSM采用的是西门子的TC35i,包括RS232串行接口,单片机采用STC89c58RD+，内部扩展RAM有256+1024字节的空间，可以作为短信缓冲区,1602液晶显示器（16引脚）作为显示模块和程序调试用(Use STC89c58RD+ Series MCU control handset to send and receive text messages of principle, the hardware circuit, PDU data formats and short message send/receive process, at the same time gives an application example. GSM is used by Siemens TC35i, including the RS232 serial interface, single-chip microcomputer used STC89c58RD+, Internal expansion RAM has 256+ 1024 bytes of space, can serve as a message buffer, 1602 Liquid Crystal Display (16 pin) as the display module and procedures for debugging)