实验箱上的蜂鸣器发出对应的音调（中音），当同时按下L和1-7时是，蜂鸣器发出低音，同时按下H和1-7时，蜂鸣器发高音。只要按键没松开，蜂鸣器一直发声，直到松到按键。-The buzzer sounded on the test box corresponding to tone (Tenor), when at the same time when you press the L and 1-7, the buzzer sounded a bass, while pressing the H, and 1-7 when the buzzer made treble. As long as no release button, buzzer sound has always been, until the pine to the button.

M16C290FC can-M16C290FC can

Microchip Technology Inc. 的HCS300 是一款跳码编码 器，它是专为安防遥控无钥门禁（RKE）系统而设计 的。 HCS300使用KEELOQ跳码技术，并具有安全性高、 封装尺寸小和成本低等特性。 HCS300 是单向遥控无钥 门禁系统和访问控制系统最完美的解决方案。-The HCS300 from Microchip Technology Inc. is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS300 utilizes the KEELOQ code hopping technology, incorporating high security, a small package outline and low cost. The HCS300 is a perfect solution for unidirectional remote keyless entry systems and access control systems.via any external connection. The EEPROM data is pro-grammable but read-protected. 2006 Microchip Technology Inc.

Discription: This multi-master driver provides the software interface to the I2C Bus hardware of the M3062x series of MitsubishiMCU.

80C52参考频率计程序，包含中断和定时器典型应用代码段-Reference 80C52 Cymometer procedures, including suspension and timer typical application code segment

利用单片机产生音乐的程序， 优化的音符编码是这个程序最大的优点。-Single-chip computer generated music program, and optimize the code notes that the greatest advantages of this procedure.

主要是实现I2C协议的一种方法，主要运行环境是ADS1.2-I2C protocol is mainly to achieve a method, the main operating environment is ADS1.2

详细介绍51单片机操作系统，包括keilc编译环境的库函数以及其功能，还有如何调用这些函数。-detailed 51 microcontroller operating systems, including keilc build environment of the library function and its function. Besides calling these functions.

LPC900单片机设计方案--自动响铃实验系统，完整的程序代码，可以直接运行！-LPC900 microcontroller design program-- automatically ringing experimental system, the integrity of the program code, can directly run!

ti dsp中的Ｃ语言和汇编语言混合编程-ti dsp in C language and assembly language programming mixed