读取mifareOne卡的数据，并显示在LCD模块上，采用C语言开发，开发编译调试环境KeilC。基于RC522模块。...

PHILIP驱动器PCF8576驱动程序，可驱动4×40个点-PHILIP drive PCF8576 driver can drive 4 × 40 points

HZ12864串口显示液晶的51单片机驱动程序（KEIL工程文件）-HZ12864 serial liquid crystal display driver 51 MCU (KEIL project file)

由8051组成的单片机系统通常情况下，P0口分时复用作为地址、数据总线，P2口提供A15-A8即高8位地址，P3口用作第二功能，只有P1口通常用作I/0口。P1口是8位准双向口，它的每一位都可独立地定义为输入或输出，因此既可作为8位的并行I/O口，也可作为8位的输入输出端。当工作在输入方式时，对应位的锁存器必须先置1,才能正确地读到引脚上的信号,否则,执行读引脚指令时,若对应位的锁存器的值为0，读的结果永远为0。-By 8051, composed of single-chip microcomputer system under normal circumstances, P0 timeshare I reuse as address, data bus, P2 I provide A15-A8 high eight address, P3 mouth for the second function, I usually only P1 for I/0 I. P1 I was eight quasi-two-way port, it can be independent of each and every defined as input or output, it can be used as 8-bit parallel I/O port, can also be used as 8-bit input and output side. When the work in the input, the corresponding bit latch must first buy one in order to correctly read the signal pin, or pin the implementation of reading instruction, if the corresponding bit latch the value of 0, Reading the results of Forever to 0.

绘制LCD的RGB和喷墨打印机的 CMYK到CIELab的三维彩色视图 -LCD rendering of RGB and CMYK inkjet printers to the CIELAB color three-dimensional view

使用MSP430控制AD9854产生任意信号-MSP430 to control the use of arbitrary signals generated AD9854

TI CC430 系列单片机的 Datasheet 和 User Guide，该 IC 将 MCU 和射频部分集成在了一起。-TI CC430 Series MCU Datasheet and User Guide, the IC will be part of the MCU and RF integrated together.

* The keyboard is assumed to be a matrix having 4 rows by 6 columns. However, this code works for any * matrix arrangements up to an 8 x 8 matrix. By using from one to three of the column inputs, the driver * can support "SHIFT" keys. These keys are: SHIFT1, SHIFT2 and SHIFT3.

51单片机汇编指令工具包-51 SCM compilation instructions Kit

常用串行EEPROM的编程应用，Microwire总线是美国国家半导体公司研发的一种简单的串行通讯接口协议，该总线是采用三线进行数据传输。Microwire总线和SPI总线一样数据输入输出分别使用一根引线，同样可以提供同步数据传输方式，可以适用在多种微控制器、EEPROM或ADC等场合。-Commonly used application of serial EEPROM programming, Microwire bus is the United States National Semiconductor R

80c51f020，i2c管理时钟芯片PCF8583,-80c51f020, i2c management clock chip PCF8583,