DMA程序，51单片机

磁传感器信号，adc,状态机算法，无线传输，用于检测车辆通过数-Magnetic sensor signal, adc, state machine algorithm, wireless transmission, for detecting the number of vehicles

MSP430开发，功能强大，非常适合于MSP430单片机开发。-MSP430 development, powerful, very suitable for single-chip MSP430 development.

绝对精美的万年历，12864+ds1302+ds18B20,支持公历，农历，温度等。功能非常全，非常精美。-Absolutely beautiful calendar, 12864+ Ds1302+ Ds18B20, in support of the Gregorian calendar, the Lunar and temperature. Very wide, very delicate.

串行驱动led显示- Serial actuates led to demonstrate

8051单片机上4*4矩阵键盘的扫描方式5-none

通过按键选择各波形的 输出并且存在AT24C02中 断电后仍然存储 -Button to choose the waveform through the output and there AT24C02 still in power storage

AT89S52单片机中数码管的循环显示的实现例子，可以让大家清楚看到这么用数码管来显示数字-AT89S52 MCU cycle of digital tube display examples realize that allows everyone to see so clearly with digital control to display the number of

自制AT89S51编程器教程 编程器制作包 1.1 修正了电路两处错误。 编程器制作包 1.2 增加了一个下载线调试程序-homemade AT89S51 programmer Programming Guide for the production of 1.1 amendments circuit two errors. For production programming packages increased by 1.2 download a line debugger

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.

利用8051驱动MAX1898，实现智能化的充电器。-Use 8051 driver MAX1898, realize intelligent charger.