the conmunication of MCU by USB2.0

大学毕业设计作品：出租车计价器的设计：以AT89S52单片机为中心，通过金属传感器来测距，实现对出租车的计价统计。结合语音芯片ISD4004，时钟芯片DS1302，功放模块LM386N组成语音时间控制系统，最后通过液晶显示模块LCD12864显示单价、路程、总价、时间等。本系统可以实现单价、起步价、白天价、夜间价的显示和时间的修改。AT89S52通过P0口与外部语音报价电路相连，可以实现语音报价功能。-Graduated from college design work: the design of a taxi meter: The AT89S52 microcontroller as the center, ranging through the metal sensor to achieve statistical valuation of the taxi. Combination of voice chip ISD4004, clock chip DS1302, composed of voice amplifier module LM386N-time control system, the final adoption of liquid crystal display module LCD12864 show unit price, distance, total price and time. This system can achieve unit price, starting at daytime price, prices shown at night and the time changes. AT89S52 through the P0 port with an external circuit connected to voice offer, you can offer voice functionality.

/// ////差动输入，定时启动，由T2定时//////////////// /////////选择6，7通道为ADC0差动转化通道,其中第6通道为P3.6,第7通道为P.7-/////// Differential input, time to start, from time to time T2 ///////////////////////// choose 6,7 for ADC0 channel difference Dynamic conversion channel, the first of which for the 6-channel P3.6, No. 7 channel for P.7

多媒体课件运用计算机多媒体工具，忠实体现电机控制精髓,为学习和理解电机控制理论提供帮助。 -The Electricity Automatic control systems- Motion Control System the use of multimedia courseware for computer multimedia tools, faithfully reflects the essence of motor control, and help to learn and understand the motor control theory.

系统能够产生正弦波、方波、三角波。同时还可以作为频率计测频率。函数信号的产生由MAX038和外围电路完成，能产生1Hz―20MHz的波形。-system can produce sine, square, triangle wave. Also as frequency measurement frequency. Signals generated by the MAX038 completed and the external circuit, which can produce 1Hz- 20MHz waveforms.

LT_1B msp430开发板例子程序－TB1-LT_1B msp430开发板例子程序－TB11

* 功能：运行RTC进行计时，将所时间值不断的通过串口向上位机发送，并把秒的值输出数码管D1 * 上显示。上位机运行EasyARM软件，在串口发送/接收窗口观察。 * 说明：* 通讯波特率115200，8位数据位，1位停止位，无奇偶校验。-* Function: RTC to run for a time, the time value will be constant upward through the serial-bit machine to send, and seconds values D1* output digital tube display. PC running EasyARM software serial port to send/receive window of observation.* Description:* 115200,8 bit baud rate of communication data bits, 1 stop bit, no parity.

汉字双排LCD液晶的驱动程序 KeilC-Chinese dual LCD driver KeilC

自己现在用的CPLD下载线，用74HC244芯片 要注意设置下载模式-themselves using the CPLD downloaded line with 74HC244 attention to the chip set to download mode

针对音量IC：M61540的控制程序，适合5.1音响系统。-For volume IC: M61540 control procedures, suitable for 5.1 sound system.

温度传感器12864在DP51下的应用.-Temperature sensor in the 12,864 applications under the DP51.