这是通讯接口实验《异步串行通信实验》的原理程序，适合于那些上嵌入式系统、通信、计算机专业的人...

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

自己在keil51中用C实现了一个电子钢琴展览项目，cpu用P89V51RD2，完全自己写的代码-Keil51 with C in the realization of an electronic piano exhibitions, cpu use P89V51RD2, completely write their own code. .

AD转换的分辨率=参考电压/(总元素-1) 当AD为8位，总元素=256（ff）取参考电压=Vdd=5V时 分辨率=5/(256-1)= 0.019607843-resolution of the AD converter reference voltage =/(total element 1) When the AD for eight, with a total element = 256 (ff) the reference voltage Vdd = = = 5V resolution 5/(256-1) = 0.019607843

用AT89S52实现鉴相功能，用于对光电编码器的输出进行编码。-Using AT89S52 realize phase function, optical encoder used to encode the output.

TCPIP在ADI公司ADU812处理器上的移植-ADI ADU812 processors transplant

1. 本程序实现了两个功能,即6264的随机读与写 2. 实现对同一端口既作输出又作输入,如程序中 PORTA作为数据输入输出口； 3. 测试接线方式见Proteus仿真文件。-1. This procedure has two functions, that is, 6264 randomized read and write 2. To achieve the same port for both output also for input, such as PORTA process as a data input and output port 3. Test Connection documents, see Proteus simulation.

这是用台湾KingB 8位单片机开发的科学计算器程序，有一定的参考价值-This is used in Taiwan KingB 8-bit single chip scientific calculator developed procedures have certain reference value

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.

avr单片机加外围三个传感器，分别是SMB380三轴传感器，ST10温湿度传感器，用iic控制,串口跟主机通讯-avr microcontroller plus three external sensors, namely the SMB380 triaxial sensors, ST10 temperature and humidity sensors, with iic control, serial communication with the host

16*16的点阵显示，包含论文电路和程序-16* 16 dot matrix display, contains papers circuits and procedures