串口通信 单片机程序 isp在线下载功能

9850驱动 驱动9850产生频率 定义端口等 理解就是了-9850

本程序可以利用74164串入并出芯片在七段共阴数码管上依次点亮0至9十个数字.. PA0....数据 PA1.....CP PA2.....是位选 在ATMEGA644P上调试通过-This procedure can be used to string 74,164 and a total of a chip in the seventh followed by vaginal digital tube light figures 0-9 10 .. PA0 .... data PA1 ..... CP PA2 ..... is selected through ATMEGA644P debugging

是一个用8051＋ds12887的代码程序，程序中有很详细的说明，可以拿来稍做修改就能使用。-is using a 8051+ ds12887 code procedure is a very detailed explanation can be used to make slight changes can be used.

串行写控制字 设置串口工作方式 将控制字写入AD9850-Serial control words written work will be set up serial control words written into the AD9850

步进电机正反转及调速控制--51单片机学习--c语言的-Positive inversion and Speed Control Stepper Motor

非常好用的大容量EEPROM存储器，带2线或3线SPI接口，带128字节高速缓存。-very handy, large capacity EEPROM memory, with two lines or three-wire SPI interface, with 128 byte cache.

dds控制字的详细描述，对新手入门有帮助。-dds a detailed description of control characters, beginners learn to be helpful.

液晶1602C51程序，P1口做数据线P2口做控制线-LCD 1602C51 procedures, I do data P1 P2 line control line so I

zlg7289键盘程序，ZLG7289仅用于键盘的程序，非常好用，尽在.h文件中更改定义端口就行。-zlg7289 keyboard procedures, ZLG7289 procedures only for the keyboard, very easy to do in. h file to change the definition of ports on the line.

帮朋友写的一个用MCS-51的IO口模拟PWM使外接LED亮度渐变的程序，虽然程序小，不过注释清楚，并已调试OK。-written for a friend with a MCS-51 simulation of the IO mouth so that external PWM LED brightness gradual process Although procedures for small, but clearly Notes, and debugging OK.