本程序主要通过外部中断INT0及3.3端口读取PS2键盘值并通过LCD1602显示，键扫描码的解码通过数组方式解码，程序的解码功能主要针对数字及大小写字母和常用...

实时时钟ds1302的c语言程序。开发环境为vw。-DS1302 Real Time Clock of the c language program. Development environment for vw.

C51编写的IC卡读写程序-C51 prepared by the IC card reader procedures

最新的HD7279(c语言)驱动程序含有两个按键驱动程序及测试函数，多种时钟制做-latest HD7279 (c Language) driver contains two key drivers and test functions, many system clock so

HT24 系列的EEPROM 总共8 个管脚，三个为芯片地址脚A0、A1、A2，在单片机对它进行操作时，从SDA 输入A0、A1、A2 数据和芯片外部A0、A1、A2 所接地址需一一对应。一个为芯片写保护脚WP，WP 脚接低电平时，芯片可进行读写操作；WP 脚接高时，芯片只可进行读，不可进行写。 另外两个管脚为电源脚VCC，VSS。 用单片机对HT24 系列的EEPROM 进行控制时，HT24 系列的EEPROM 的外部管脚VCC、VSS、WP、A0、A1、A2 根据需要，对应接上，SDA、SCL 接到单片机控制脚上。-HT24 Series EEPROM total of 8 pins, three pins for the chip address A0, A1, A2, in the microcontroller to operate it, from SDA input A0, A1, A2, and chip external data A0, A1, A2 of the Then one correspondence address must be in. One for the chip, write-protect pin WP, WP feet then low, the chip can be read and write operations WP pin is high then, the chip can only be read, not write. The other two pins for the power pin VCC, VSS. With the microcontroller on the HT24 Series EEPROM control when, HT24 Series EEPROM external pin VCC, VSS, WP, A0, A1, A2 according to the needs of the corresponding connected, SDA, SCL receives SCM control feet .

51系列单片之间的串口多机通信程序。已经成功通过调试，可以可靠通信。-51 Series single-chip serial port between the multi-machine communication program. Has successfully passed the testing can be reliable communication.

基于AVR单片机mega8的电表c源程序（第四部分，红外收、发过流判断及其他）-Based on the AVR Microcontroller mega8 meter c source code (Part IV, infra-red close, hair over-current judgments and others)

12864的液晶屏驱动程序使用51单片机编写-12864

AVR单片机入门及C语言高效设计实践（四） ATMEAG16L的I／O端口特点及使用 ATMEAG16L单片机有32个通用I／O口，分为PA、PB、PC和PD四组，每组都是8位。这些I／O口都可以通过各自的端口寄存器设置成输入和输出（即作为普通端口使用），有些I／O口还具有第二功能（我们在后面使用到这些第二功能时再介绍）。-AVR C language portal and efficient design practice (4) ATMEAG16L the I/O Ports characteristics and use of a microcontroller ATMEAG16L 32 common I/O mouth into PA, PB, PC and PD four groups, each group are eight. These I/O I can through their respective ports Register set to input and output (that is, use as a general port), Some I/O I also have the second function (in the back of the use of these second function tell).

用NXP公司P89LPC9401单片机开发液晶显示,包括开发资料,各功能驱动程序.-NXP Single Chip P89LPC9401 company with the development of liquid crystal display, including the development of information, the function driver.

mega32＋N298电机控制芯片, 通过控制电机的IN1和IN2改变方向, pwm控制速度。 IN1和IN2不同时，电机转动 IN1和IN2相同时，电机急停。 -mega32+ N298 motor control chip, by controlling the motor IN1 and IN2 to change direction, pwm control speed. IN1 and IN2 are not the same time, motor rotation IN1 and IN2 are the same, the electrical emergency stop.