temperature for 51 process ds18b20 SCM. C language

是基于c8051f040单片机开发的电机转速测试程序。-SCM is based on c8051f040 test procedures developed by the motor speed.

4*4键盘扫描应用C51在UVision3平台开发编程-4* 4 keyboard scan applications uVision3 platform development in C51 programming

MCU与PC键盘通信程序，接口为PS/2；I2C通用驱动程序-MCU with a PC keyboard communication procedures, interface for PS/2; I2C common driver

12864液晶（STC7920控制器）屏上用基本指令与扩充指令分时显示文字、图片、图片与文字混合、任意位置的图片。-12864 LCD (STC7920 controller) to use on-screen instructions and the expansion of the basic time-sharing display text instructions, pictures, images and characters mixed, arbitrary location of the picture.

一款KingB公司的语音编码解码程序，效果还不错，支持PWM和VOC输出-KingB a company

步进电机驱动主函数，使用C8051F330,功能强大,已经大量使用到产品中-main functions, use C8051F330, powerful, has been the large-scale use of the products

之前用C51做了，感觉不够快，有点闪，试着移过来用M8做。 -Done before the use of C51, the feeling is not quick enough, a bit flash, try to move up to do with M8.

SIMCOM公司生产的SIM300系列芯片的用户手册，对开发公网产品的朋友很有用-SIMCOM chips produced by SIM300 the user manual, public networks on the development of products useful to a friend

单片机用T1中断在IO口P1.0输出乐曲(在P1.0口与VCC间接一喇叭即可听到) 1.由于输出的是方波，比较难听:-)你也可以将波形细分用DA输出正弦波 2.由于T1频繁中断，任何其他中断发生都会是乐曲打顿，只适合试验 3.优化音符编码：一个字节中包含节拍、音符、升降调，可区分数据和命令 -Single-chip microcomputer used in the IO port T1 interrupt output music P1.0 (P1.0 port with VCC in the indirect one can hear the speaker) 1. As the output is a square wave, more bluntly :-) You can also fine-waveform DA output sine wave with sub-2. Due to the frequent interruption of T1, any other interruption occurs Dayton will be playing music, is only suitable for test 3. optimized coding notes: A byte contains rhythms, notes, take-off and landing tune can distinguish between data and command

支持键盘双击事件的C程序设计,51实例，验证过的-Double-click the event to support the keyboard C-program design a