用8051控制DDS信号发生器，产生1HZ

密码锁 密码锁密码密码锁锁密码锁-password lock password lock password lock password lock password lock

在EASY_ARM 2103上调试通过的DS18B20温度传感器，内含UART源代码，可直接在串口调试工具上显示，编译环境keil-ARM-EASY_ARM 2103 in debugging DS18B20 adopted temperature sensor, UART contains the source code can be directly displayed on the serial debug tools, compile environment keil-ARM

12864液晶屏驱动: 显示器片选0=CS1,1=CS2 BZPD 0=上8X8半字,1=下8X8半字 HZDH 0=显示汉字，1=显示动画-12,864 LCD Driver : Display- election CS1 = 0, 1 = 0 = CS2 BZPD on 8x8-word, a = half under 8x8 = 0 word HZDH show Chinese characters, animation shows a =

十分详尽的串口调试程序，未经测试，不过已通过仿真-Very detailed serial debugger, without testing, but had passed through Simulation

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

本文介绍了两种分频系数为整数或半整数的可控分频器的设计方法。其中之一可以实现50％的奇数分频。利用VHDL语言编程，并用QUARTERS||4.0进行仿真，用 FPGA 芯片实现。 关键词：半整数，可控分频器，VHDL, FPGA -This article describes two kinds of sub-frequency coefficient is an integer or half-integer divider controllable design method. One of them can achieve 50 of the odd-numbered sub-frequency. The use of VHDL language programming, and QUARTERS | | 4.0 simulation, using FPGA chip. Key words: semi-integer, controllable divider, VHDL, FPGA

单片机简易数控电源no interupt 源代码-Single-chip digital power supply simple no interupt source code

单片机与上位机的通讯协议,单片机与PC机通讯程序-MCU and host computer communication protocol, microcontroller and PC-communication program

单片机设计的原理介绍以及仿真比较真的很不错-Single-chip design and simulation introduce the principle of comparison is really very good

按键控制发光二极管熄灭，基于凌阳单片机开发 -Button control LED is off, Sunplus based on single-chip development