x5045的相关程序，可以在keil c 上运行

用于PIC的AD转换和用HD7279A的显示（公阴极的8段数码管）-PIC for the AD converter, and the use of HD7279A display (public cathode of the eight digital tube)

基于avr单片机的74hc164并入串出显示的仿真(proteus,c源码) -Avr microcontroller based on a displayed string 74hc164 into the simulation (proteus, c source code)

C51七种实用子程序集4-C51 seven practical subroutine Set 4

MSC-51系列单片机内有128B或256B的RAM数据存储器，对一般应用场合，内部 RAM可以满 足系统对数据存储器的要求，但对需要大容量数据缓冲器的应用系统（如数据采集系统），仅片内的RAM存储器往往不够用，这种情况下，就需要在单片机外部扩展数据存储器。 MSC-51与外部数据存储器的一般连接方法：外部数据存储器的高8位地址由P2口提供，低8位地址线接地址锁存器的输出端。外部RAM的读、写控制信号分别接MCS-51的 、 。外部RAM的片选信号可由P2口未用的地址线的剩余口线以线选方式或译码方式提供。 随机存贮芯片（RAM）HM62256的存贮量为32KB，地址线有(A0～A14)，是单片机应用系统中最常见的数据存储器 -err

MSP430C41X中文使用手册,难得 MSP430C41X中文使用手册,难得-MSP430C41X English user manual, user manual Chinese MSP430C41X rare, rare

这是一个针对AVR单片机的串口编程，里面有原理图，加上串口源码。针对型号为ATMEGA128的AVR单片机使用。其它的芯片，如果寄存器一样也可套用。-This is a serial port for AVR MCU programming, which has schematic diagram, together with the serial code. ATmega128 model for single-chip using the AVR. Other chips, the same as if the register can also be applied.

This code implements the basic functions for an I2C slave device using the SSP module. All I2C functions are handled in an ISR. Bytes written to the slave are stored in a buffer. After a number of bytes have been written, the master device can then read the bytes back from the buffer.

本系统主要用于旅游景点记录游客人数，并限制旅客的流量。采用红外传感器通过检测人体红外并对通过人数进行计数，通过红外对管将检测到的数据发送至单片机，单片机处理后送至数码管显示，数码管显示的数据即为通过的人数，并通过设定值限制旅客数量。当游客超量是系统将给出相应的提示，禁止游客再进入。以更好的保护旅游景点的生态环境。-This system is mainly used for tourist attractions recording the number of visitors and limit the flow of tourists. Use of infrared sensors by detecting the human body by infrared and number of people count on the tube will be detected by infrared the data sent to the MCU, MCU after treatment sent to the digital LED display, digital LED display of the data shall be the number of through and through setting limits the number of passengers. When the visitors over-the system will give the appropriate prompts to prohibit visitors from re-entering. To better protect the tourist attractions of the ecological environment.

实现控制数码管，主要用到的开发芯片为c51单片机-Realize the control of digital control is mainly used to develop chips for the C51 single-chip microcomputer

用单片机汇编语言写的使用的子程序 包扩浮点书的加减还有 模糊算法-SCM assembly language used to write the use of the subroutine package expanding the floating-point addition and subtraction algorithm still fuzzy