凌阳单片机的语音程序4，供学习凌阳单片机的学习者参考

51定时中断例程，比较经典的说明了定时器的实际使用-51 timer interrupt routines, the more classical note of the actual usage timer

也与温度计，里面有详细电路图，照片，功能，结合电子闹钟，使用，简单，易学习-Also with the thermometer, which has detailed circuit diagrams, photos, features, combined with electronic alarm clock, use, simple and easy to study

at89c2051制作的超声波测距源程序，经本人检测程序无误，测距精度在10CM以内-AT89C2051 Ultrasonic Ranging source produced by the testing procedures I correct location accuracy within 10CM

8051单片机控制LED实现流水灯循环显示-8051 to achieve flow control LED lights cycle show

51单片机编程序学习实践经验丰富工程师编写实机通过-51 SCM-programmed study and practice of experienced engineers to prepare real machine through

Used to display a hexadecimal value in 7 segment LED display using an interrupt in PORTB upper 4 bits.

LCD1602 字符屏测试程序，驱动芯片44780-Characters LCD1602 screen test procedure, 44780 Driver IC

采用C51编写的基于C8051F020单片机的电机测速使用程序。-using C51 prepared by the C8051F020 Motor gun procedures.

8051 单片机和外围　ＤＶＢ芯片通讯-8051 and external DVB-chip communication

增加ASCII.C的一个ASCI码(7F),用于虚拟按键用 修改UART串口的命令解析程序，修改RTC的pcf8563中断部分。 精简IIC和smart_timer代码,添加define.h的宏定义。 修改system.c里的消息堆栈的宏定义 增加ii.c函数,支持对eeprom的打包 增加由PLD或者GPIO输出的模拟UART，在6个CLOCK下速度为57.6K 增加消息的优先级功能，消息类型的前4位为消息的优先级，后4位为消息的类型 试用于初学单片机并且想更上一层楼的，或者有些基础，想减少工作量的。-an increase ASCII.C the ASCI code (7F) for the virtual keys with serial UART to amend the order analytic procedures, the revised RTC pcf8563 interruption part. IIC and smart_timer streamline code, add the definition of Acer define.h. The revised system.c news stack macros increase II.c function, support for EEPROM packaged increase from the PLD or GPIO output analog UART, in the next six CLOCK speed of 57.6K news of the priority function of the type of information before news of the four priority levels after four types of information on the trial beginner to a higher level and SCM, or some foundation, we want to reduce the workload.