一个不错的keil优化手册，适合初学者，希望能提供帮助

汇编程序，利用单片机液晶1602实现数字频率计-Assembler, using 1602 single-chip LCD digital frequency meter

三相步进电机的三相六拍工作方式，正转的绕组通电顺序：A、AB、B、BC、C、CA、A，反转的通电顺序：A、AC、C、CB、B、BA、B、A。 由于步进电机转子有一定的惯性以及所带负载的惯性，故步进电机的工作过程中不能及时的启动和停止，在启动时应慢慢的加速到预定速度，在停止前应逐渐减速到停止，否则，将产生失步现象。 步进电机的控制问题可总结为两点： 1、产生工作方式需要的时序脉冲； 2、控制步进电机的速度，使它始终遵循加速、匀速、减速的规律工作。 -Three-phase three-phase stepper motor six shot work, is to order the winding power: A, AB, B, BC, C, CA, A, reverse the order of power: A, AC, C, CB, B, BA, B, A. As the stepper motor rotor has a certain degree of inertia, as well as brought about by the inertia load, the stepper motor during the course of work should not start and stop time, start to be slowly accelerated to a predetermined speed, the stop should be to slow down gradually to the stop, otherwise, will result in out-of-step phenomenon. Stepper motor control problems can be summarized in two points: one, resulting in the need to work the timing pulse 2, control the speed of stepper motor, so that it always followed acceleration, velocity, deceleration of the law of the work.

此模块是我在以前公司做热风枪项目时设计的一个模块，用于实时显示当前温度，其精度可以达到1摄氏度，三位半液晶显示，界面美观，稍作改动也可用段码LED作为显示。 程序功能：10位A/D的温度采集（热电偶）；TN段码液晶驱动；温度补偿； 文件包括：所有C源程序；完整的项目文件包（基于MCU：HT46R23） PCB HT46R23 DATASHEET 三位半液晶片DATASHEET-This module is in my hot air gun to do before the company projects a module designed for real-time displays the current temperature, its accuracy can reach 1 degree Celsius, three semi-liquid crystal display, interface aesthetics, make a minor amendment to paragraph can also be used as a code LED display . Program features: 10-bit A/D Acquisition temperature (thermocouple) TN LCD driver code segment temperature compensation documents include: All C source code complete package of project documents (based on the MCU: HT46R23) PCB HT46R23 DATASHEET 3 semi-liquid crystal film DATASHEET

单片机密码-24c01-12864-4x4按键扫描 初始密码是123456,按#确认 进入后,按*修改密码-Singlechip password-24c01-12864-4x4 keypad scan the initial password is 123456, by# Confirm enter, press* Change Password

单片机应用系统设计实例与分析-Application System Analysis and Design Example

单片机与嵌入式的经典应用推荐－－阻抗测量芯片AD5933.doc-Microcontroller and Embedded classic application of the recommendation- impedance measurement chip AD5933.doc

MicoCANOpen很好的学习源代码，包括了CANOpen实现的源代码以及在C51和P591单片机上的实现。-MicoCANOpen good learning source code, including the CANOpen realize the source code as well as in C51 and P591 on the realization of single-chip microcomputer.

这是凌阳61板的原理图和PCB版图，希望能给大家的学习提供帮助！-This is the Sunplus 61 board schematic and PCB layout, hope that I can help everyone to learn!

单片机串行口的编程使用包括一些具体的设置-chuangxinkou

显示： “欢迎使用"， "单片机实验系统" lcd显示汉字-shows : "Welcome," "SCM experimental system" LCD display Chinese characters