键盘与显示，按下相应的按键，数码管就显示相应的数字

基于51单片机的多功能数字钟。时间，年月日，多组闹钟，议程。且外接24C04的EEPROM后可保存设置。蜂鸣器由I/O口接三极管放大后驱动。-51 microcontroller-based multifunctional digital clock. Time, date, multiple alarm clocks, and the agenda. 24 C04 and external EEPROM kept after setting up. The buzzer sounded by the I/O access triode mouth amplified drive.

好久没来了,写个4*4键盘的程序把,基本上每行都有解释,很适合初学者-Long time did not come, write a 4* 4 keyboard procedure to basically have to explain each line, it is suitable for beginners

我在使用的一个1335SED液晶屏程序.-I use an LCD screen 1335SED procedures.

CPU为CSP8051F020，有两个串口和一个SPI口。 一个串口通过数传电台和中控室计算机通信 另一个串口和PLC的MODBUS口通信。 SPI口控制数码管的显示。 已经在工程上应用。-CPU for CSP8051F020, two serial and one SPI mouth. A serial data transfer through the radio and the computer control room of another serial communications and MODBUS PLC Communication. I SPI digital control of the show. In engineering applications.

51单片机编程范例（定时/计数器软件编程范例）-51 microcontroller programming paradigm (timer/counter software programming paradigm)

P87C591的a/d 转换程序，可在keil 51下调试运行，也可将其参数修改后作为函数使用。-P87C591 the a/d conversion, in the next 51 c51 debugging operation, but also its parameters can be modified as a function use.

附件中是在keil for arm下编译的ARM程序――LCD万年历-In the annex is the keil for arm under the ARM compiled programs- LCD calendar

16X16的LED点阵控制（附原理图），asm和c的源程序，对了解开发原理有帮助！-audio LED dot matrix control (diagram), asm and c source, the development of principles for understanding help!

本程序可实现，四个16*16级联LED点阵的汉字循环左移显示。-This procedure can be realized, four of 16* 16 cascaded LED dot matrix display of Chinese characters to the left circle.

本软件是单片机通讯的主程序，通过串口传送数据。-This software is the main single-chip communications, through the serial transmission of data.