89C2051实现软PLC。有PLC程序的输入采用24C04健…

毕业 交通灯 有电路图和程序 都是正确得-Graduation traffic lights are too schematic and procedures are correct

使用ADC模块的通道0、1进行电压的测量，然后将转换结果从串口输出。-0,1-channel ADC module used for voltage measurement, and then convert the results from the serial port

8253的初始化程序举例: 例1：选择2号计数器，工作在3方式，计数初值为533H（2个字节），采用二进制计数。其初始化程序段为 MOV DX，307H ；命令口 MOV AL，10110110B ；2号计数器的初始化命 令字 OUT DX，AL ；写入命令寄存器 MOV DX，306H ；2号计数器数据口 MOV AX，533H ；计数初值 OUT DX，AL ；选送低字节到2号计数器 MOV AL，AH ；取高字节送AL OUT DX，AL ；后送高字节到2号计数器 -8253 initialization procedures examples : Example 1 : Select counters on the 2nd, in three ways. Counting for the initial 533H (2 bytes), a binary counting. Initialization of its procedures for MOV DX, 307H; I ordered MOV AL, 10110110B; on the 2nd Counter initialize command word OUT DX, AL; write commands Register MOV DX, 306H; data on the 2nd Counter I MOV AX, 533H; Counting initial OUT DX, AL; low-byte sent to the 2nd Counter MOV AL, AH; With a high-byte send AL OUT DX, AL; evacuations high byte counter to the 2nd

利用PWM和移位运算设计，并利用人眼的视觉 暂留现象产生移动，并拖影的动态发光效果-Use of PWM and displacement computing design and the use of the human eye

由于该源程序并非为单片机而编写，因此资源占用率很大，要想在C51中使用，还必须对其进行改造-because the source is not prepared for a microcontroller, the occupancy rate has great resources, in order to use the C51, we must transform its

STC单片机AD的实现加8位595串行数码管显示-STC Single-chip realization of AD plus 8 595 serial digital tube display

PHILIP驱动器PCF8576驱动程序，可驱动4×40个点-PHILIP drive PCF8576 driver can drive 4 × 40 points

用89S52进行DS1820温度读取程序-89S52 used for DS1820 temperature reader

keil C51 H－Test事例-H-Test case

基于单片机的温度传感器18B20的测温程序-Single-chip temperature sensor based on the measurement procedures 18B20