A small keyboard program, there are nine buttons, through the 422 control other...

RS-485接口具有较强的抗干扰性，数据传输的距离较远，在一些应用中常常需要把RS-232标准的信号转换为RS-485的标准信号进传输。图中所示电路允许数据在RS-232/RS-485这两个不兼容的串行数据接口间传递。传输速度为480波特时，传输距离可达1750米。图中双RS-232收发器IC1将主机(PC)输出的RS-232电平转换为TTL电平，驱动高速RS-485收发器IC2 的输入，倒相器使IC2、IC3在受到起始位时被激活。-RS-485 trying to lay all the thoroughly bleed at the nose picking up the birthday 扰 fern cavity 强 ， Chu Huai basin cavity beat escapement for the birthday candle远Now ， Which instance, using Beckmannia中

该程序可用于遥控器制作参考或者其他红外控制的项目,单片机采用的是PIC系列的-the procedure can be used for remote reference to the production or other infrared control of the project, the 8031 PIC is the series of

DOS 下的VGA 转 TV的芯片控制源代码,汇编编写.可直接使用-DOS VGA chip to control TV source code, compile prepared. Can be used directly

IDE-ATA硬盘驱动器的ARM控制源代码-IDE-ATA hard disk drives to control the source code of the ARM

带中断输出功能的时钟芯片例程序,可移值，编译！-With interruption of the clock chip output function Example procedures, can shift the value, the compiler!

mega16,驱动开发板上的独立按键，按下不同的键，数码管显示0-3四个数字-MEGA16 KEY

max197采样程序,采用STC89C52RC单片机-MAX197 sampling procedures STC89C52RC Singlechip

c8051f330 ad 测试程序代码 -F33x_ADC0_ExternalInput

51的VERILOG代码！适用于Xilinx的FPGA-51 VERILOG code! In Xilinx FPGA