LCD7920 LCD characters operational procedures, already in use in the product,

AVR学习心得体会-AVR study experiences

主要是关于A/D转换的程序，每一个我都试验过，非常好使-Mainly on the A/D conversion process, every test I have been very so

这个是液晶模块1602A用于单片机AT89S52的C语言驱动头文件.这个头文件不是普通的头文件，笔者在其中加进了很多自己的东西。而且经过自己的实际验证是可以用的。 　　有了该文件，你可以不用看1602的DATASHEET就会使用。-This is a LCD module 1602A for the single-chip AT89S52 the C language driver header file. This header file is not an ordinary header files, in which the author added a lot of our own things. But after their own actual authentication can be used. With the file, you can not watch the 1602 will be used DATASHEET.

为c51写的拼音输入法模块,功能是用来无线传送打字。c51也能打字了哈哈o(∩_∩)o-Written for the C51 Pinyin input method module, wireless transmission function is used to typing. C51 can be typing a哈哈o (∩ _ ∩) o

单片机8051点对点通信程序，是个例程，大家可以参照做修改！-8051 single-chip point-to-point communication program is a routine, we can modify the light to do!

包括读卡器源代码，专为研究RFID技术学习之用-Philips makes no warranty, expressed, implied or statutory, including but * not limited to any implied warranty of merchantability or fitness for any *particular purpose, or that the use will not infringe any third party patent,* copyright or trademark. Philips must not be liable for any loss or damage * arising from its use.

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.

本程序是下个双通道充电器的原程序,充两节NI-MH电池,-This procedure is the next dual-channel charger for the original procedure, two rechargeable NI-MH battery,

MAX7219驱动例程，工程内还有DS1302等驱动代码，是学习写驱动不错的工程。-MAX7219-driven routines, engineering, etc. There are DS1302 driver code, is to learn to write good works driver.

avr单片机atmega8系列led显示测试程序，本程序为示例程序，适用于初学者 -avr microcontroller series led atmega8 testing procedures showed that the procedures for sample procedures applicable to beginners