fcfs

对于PCB LAYOUT工作者,做元件库这是一本非常好的参考资料.(PCB LAYOUT for workers, to do component library This is a very good reference.)

A nice spaceshooter/space-travelling game written in tasm. You can buy and trade items, upgrade your ship, land on different planets and space stations, fight with space pirates in a huge map that is full with objects, asteroids, ship wrecks and others. In this version you start with more than enough money and if you die the game doesn t stop but your screen becomes a little "messy" (guys, this game remained in beta state :-) IMPORTANT: In game help is avaible if you press F1! It is really needed because I won t tell you here how to control the ship or access the world map! Btw there is a read.me file too, about some technical stuff if you want to know some interesting things...

说明：  一个读取西门子PLC数据的从代码，希望大家喜欢，谢谢大家(A read Siemens PLC data from the code, I hope you like, thank you.)

固体材料超弹性和弹塑性计算程序，包含多种材料模型和损伤判据(Program for implicit small and large strain finite element analysis of hyperelastic and elastoplastic solids.)

说明：  ADXL345基于stc51的测试文件，可读取ID，和x，y，z轴三个方向的角度以及加速度(Based on stc51 test file, adxl345 can read the angles and accelerations of ID, x, y, z axes)

tea5767收音机原理图，mcu是STC90C52属51系列单片机,原码在网上可搜。(TEA5767 RADIO SCH，MCU IS STC90C52 IN SYSTEM，SOURCE PROGRAM WEB SEARCH )

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)

基于stm32的贪食蛇小游戏开发，在LCD显示屏实现了此游戏。算法简洁明了(This game is based stm32 Snake game development LCD display. Algorithm concise)

基于stm32的示波器，显示波形电压等参数(Oscillograph based on STM32 to display waveform voltage parameters)

程序说明: 此程序用UART1外扩MAX485实现RS-485通信(Procedure Description: This procedure using UART1 extend outside the MAX485 realize RS-485 communication)