本代码实现了卡式电话的功能,包括长话市话特话,警告,扣费等一系列功能-This code implements the cassette phone features, including special long-distance local call, then, warnings, chargeback and a series of functions

在Proteus中实现按键延时复用，单个按键实现对整个屏幕的数据输入，并实现c语言中的冒泡算法，从大到小，从小到大排列-Proteus delay in achieving key re-use, single button to achieve the entire screen data entry, and to achieve c language bubble algorithm, from biggest to smallest, from small to large array

C8051F040 T0 对/INT0输入信号脉宽测量例程-C8051F040 T0 right/INT0 input signal pulse width measurement routines

RS485 MODBUS C51程序(EE21学习板演示程序) -RS485 MODBUS C51 program (EE21 learning demo board)

多种A/D转换芯片在MCU应用中的驱动程序，C语言原代码-multiple A/D converter chip MCU application of the driver, the original C language code

本实例实现了用C8051F040控制1602LCM液晶模块的显示功能。-This instance realized with the C8051F040 control 1602LCM LCD module display.

44b0x的U盘源代码，用PCB上的Flash作为存储价质1M-44b0x U disk source code, the use of PCB Flash memory prices as a quality 1M

飞利浦高性能单片机IIC总线通用通信协议-Philips high-performance general-purpose single-chip IIC bus communication protocol

51单片机控制ISD1420实现选段播放功能的实现-ISD1420 single-chip implementation of 51 selections to control playback of the implementation

文件中包含C8051F单片机应用CAN功能时所需的CAN初始化及接收发送函数，已经过长期验证和应用，可以放心使用。-C8051F MCU file contains the necessary application of CAN function to send and receive CAN initialization function, has been a long-term verification and applications, you can rest assured that use.