keycontrolled keycontrolled

Proteus仿真的Arm7源程序，用于串口通信，开发环境为ADS-Proteus simulation ARM7 source for serial communications, development environment for the ADS

C8051F04x单片机可变周期PWM脉宽调制。-C8051F04x Singlechip variable pulse width modulation PWM cycle.

2262和2272的发射接收源码，很简单-2262 and 2272 of the transmitting and receiving source code is very simple

TLC548C, TLC548I, TLC549C, TLC549I 芯片的资料-TLC548C, TLC548I, TLC549C, TLC549I chip information

多位数除法程序，满足在单片机编程中对除法程序的需要，解决了单片机指令无除法程序的缺点，而且本程序不限制位数。-over the median divider, which meets in MCU Programming division procedures to the needs of SCM solutions division procedures directive without shortcomings, but the procedure does not limit the median.

利用NRF9e5芯片编写的C51源代码，可实现点到点无线通信接收部分。-NRF9E5 chips prepared using C51 source code, can be achieved to receive part of point-to-point wireless communications.

Keil C51 89c52单片机挂接ds1302时钟芯片的驱动程序-Keil C51 articulated ds1302 89C52 microcontroller chip clock driver

利用89S52为核心实现的IDE-USB转接器 现在已经实现了主要功能：可以读取文件和复制文件。不支持格式化硬盘功能。 不过速度比较慢，我从本地硬盘复制文件到移动硬盘里去，速度只有50KBytes/S， 因为单片机速度不快，内存又少，USB1.1的速度也不快。另外，代码写得不够好 压缩包内有线路图-89S52 realize use as the core of the IDE-USB adapter now realize the main function: You can read the files and copy files. Reformat your hard disk does not support the function. More slowly, however, I copy files from the local hard disk to a mobile hard drive into a speed only 50KBytes/S, because of slow single-chip, memory less, USB1.1 speed is not fast. In addition, the code written is not good enough compression packages have circuit diagram

在有线电视中实现程控有源滤波器设计。为了充分利用设备和传输线,需要一种具有频率选择的网络―滤波器,将同一线 路上不同的信号分开,在电视机中也需要不同的滤波器(即选择有用信号,抑制无用信号) 。下面利用8051 单片机与12 位分辨率的DAC1208 数模转换芯片相结合的系统实现时间常数可程控有源滤波器设计,阐述了硬件结构与软件设计-In cable television in the realization of program-controlled active filter design. In order to make full use of equipment and transmission lines, the need for a frequency selective network- filter, the same lines separate different signal in the TV also requires a different filter (ie, choice of useful signals and suppress unwanted signals). Following the use of 8051 and 12-bit resolution digital-to-analog converter DAC1208 chip combining system time constant can be program-controlled active filter design, the hardware structure and software design

c51语言的93C46驱动程序-93C46 Driver