一个直流电机转速控制程序，液晶显示速度1602，…

软件模拟串口-Software simulation serial

这是一个用abel语言编写的步进电机程序-This is a language used abel stepper motor procedures

电动车上面的控制器原理图，NEC主控芯片，现在最流行的方案，提供给大家-Electric vehicle controller schematic diagram above, NEC host chip, is now the most popular programs available to everyone

一反馈报警器的完整原程序,用于负载量变化的检测与报警.-a feedback report of the original integrity of procedures for loading change detection and alarm.

介绍了液晶显示模块基本原理及其技术特性，与单片机的进行接口的具体电路，同时给出了其编程方法和程序代码．-Introduced the basic principles of liquid crystal display module and its technical characteristics, and MCU interface to the specific circuit, at the same time gives the methods and procedures of its programming code.

AVR单片机之间多机通信（通信方式采用的中断进行）-AVR single-chip multi-machine communication between (the interruption of communication used to carry out)

串口通信的单片机程序51单片机串口调试程序一例-Microcontroller serial communication program 51 MCU serial debugger one cases

以单片机为核心的语音存储与回放系统，介绍了系统的组成及软、硬件设计方法。该系统结构紧凑，具有灵活的录音、放音功能；语音音量自动控制功能-Single-chip microcomputer as the core of the voice storage and playback system, introduce a system and software and hardware design methods. The system is compact, flexible recording, playback function voice volume automatic control function

SPI是一个环形总线结构，由ss（cs）、sck、sdi、sdo构成，其时序其实很简单，主要是在sck的控制下，两个双向移位寄存器进行数据交换。 假设下面的8位寄存器装的是待发送的数据10101010，上升沿发送、下降沿接收、高位先发送。 那么第一个上升沿来的时候 数据将会是sdo=1；寄存器=0101010x。下降沿到来的时候，sdi上的电平将所存到寄存器中去，那么这时寄存器=0101010sdi，这样在8个时钟脉冲以后，两个寄存器的内容互相交换一次。这样就完成里一个spi时序。 -SPI bus is a ring structure, by ss (cs), sck, sdi, sdo composition, its timing is actually very simple, mainly under the control of the sck and two bi-directional shift register for data exchange. Assuming the following 8-bit register is loaded to send the data to be 10,101,010, rising to send, receive falling edge, high first sent. Well, the first rising edge to the time data will be sdo = 1 register = 0101010x. Falling edge comes, sdi on the level will be stored to the register, then register at this time = 0101010sdi, so 8 clock pulse later, the contents of two registers to exchange time. This will be completed in a spi timing.

PIC16F877A+PDIUSBD12做的USB游戏手柄-PIC16F877A+ PDIUSBD12 do USB game controller