STC89ISP

直流无刷电机分类、驱动模型建立、PID模糊控制理论(Classification of Brushless DC motor, establishment of driving model and PID fuzzy control theory)

单片机接收从电脑串口发送出来的一串字符串，却只能接收到第一个字符，其他的都丢失了或者是接收到的是乱码，却不知道是什么原因。其实，那是因为，虽然单片机的是全双工串口，但是串口的缓冲区(SBUF)却一般只有一个字节，即1Byte，远没有像电脑串口的缓冲区以KB计算那么大，并且，单片机的处理速度是很有限的，试想一下，假如要求一串字符串以9600bps的速率，一个起始位，一个结束位，无校正位，相当于960Byte/s传输到单片机，单片机要是能够全部接收的话，那么单片机接收和处理一个字节的时间仅为约1ms的时间。这说明了，如果单片机的处理速度不够快，还没有将接收到的上一帧数据及时转送到单片机的RAM中，而电脑串口又传输过来一帧新的数据，这帧新的数据就会把单片机的串口输入缓冲区的SBUF给刷新掉，或者说单片机压根就没有接收到新的一帧数据，造成了数据的丢失或接收到乱码。 如果需要单片机接收到从串口发送过来的一段很长的字符串，并且能够都正常接收和显示(TX&RX FUNCATION between PC and MCU)

由单片机和DAC0832产生正弦波或三角波的程序。单片机和DAC0832可将频率进行分频的具体程序(Sine or triangle wave and DAC0832 procedures generated by the microcontroller. SCM and DAC0832 can divide the frequency of specific procedures)

是一个为地铁施工现场开发的人数监控系统，使用ATMEGA16单片机做的，并用了红外传感器。(Is a subway construction site for the development of the number of monitoring systems, using ATMEGA16 microcontroller to do, and use the infrared sensor.)

XPT2046 四线触摸屏控制芯片,优化、代码规范注释清晰。共同分享。(XPT2046 4 LINE touch screen controller driver code。)

说明：  Leave with Rejoin - The stack will attempt once and

STM32CubeMX教程-点亮LED，STM32CubeMX是STM公司研发的图形化芯片配置界面，可以很轻松的实现对芯片的功能的配置(STM32CubeMX tutorial- light LED, STM32CubeMX is STM company research and development of graphical interface chip configuration, can easily achieve the configuration of the function of the chip)

UCOSII在mcs12dg128上的移植，有包括初始化任务，红绿灯，互斥信号量，建立统计任务，空闲任务，任务额外信息，消息队列在内的6个工程。内容十分详尽，适合UCOS的学习。不过因为文件过多，低license无法编译，请自行申请license(UCOSII at mcs12dg128 on the transplant, including initialization tasks, the traffic lights, mutual exclusion semaphores, set up statistical mission, free mission, tasks, additional information, message queues, including six works. Very detailed study of the fit uCOS. However, because file too large, low-license can not compile your own application for license)

好的声文同步程序，值得学习，适合于初学者，给大家共同分享(Good sound text synchronization process, it is worth learning, suitable for beginners, for everyone to share)

本代码为基于STM32单片机的am2322温湿度传感器驱动代码，已经经过本人优化，并已经测试通过，可以直接用于采集温湿度信息，本代码采用keil5编程软件，下载解压后即可使用。 (本代码为基于STM32单片机的am2322温湿度传感器驱动代码，已经经过本人优化，并已经测试通过，可以直接用于采集温湿度信息，本代码采用keil4编程软件，下载解压后即可使用。(This code is based on the STM32 MCU am2322 driver code, temperature and humidity sensor has been optimized himself, and has been test pass, temperature and humidity can be directly used for collecting information, this code USES keil5 programming software, after download decompression can use. (this code is based on the STM32 MCU am2322 driver code, temperature and humidity sensor has been optimized himself, and has been test pass, temperature and humidity can be directly used for collecting information, this code USES keil4 programming software, after download decompression can use.)