caijifenxiqi

PROTEUS SIMULATION, BASE ON PIC S MCU, 220v 50HZ INVERTER, KEY WORD IR2112，INVERTER,DC_AC,NO_ISO,NO TRANSFORMER (PROTEUS SIMULATION, BASE ON PIC S MCU, 220v 50HZ INVERTER, KEY WORD IR2112，INVERTER,DC_AC,NO_ISO ,NO TRANSFORMER )

说明：  可实现整点报时，调整闹钟，调整时间，电子钟(clock)

TMS28335初始化完成之后， 1、 先DDS产生73.35hz的方波。（问流量管固定频率） 2、 乘法器的另一个数字端输入乘数直接给一个固定值（按照5v），系数是固定的就是对应PID输出的那个接口，串行十二位信号输出（需要先定好一个GPIO接口）。 3、 再延迟一定的时间0.1s或其他时间之后，开始ad采集信号，分别采两路AD信号，此时不稳定（为什么要等到一定的幅值才开始采集AD信号） 4、 选择250点估计一个频率，频率估计的方法采用计算峰值次数的方法或者过零点，总之是为了保证精度采用时域估计的算法，这一块主要是一个扫频子程序，计算频率共振点。 5、 之后改变DDS的输出频率，循环对512点的数据进行扫频的处理 6、 频率控制完成之后，就可以缓慢降低PID控制输出的参数，此时暂时不计算频率，通过不断调整系数使AB的幅度保持在1 的范围内。 7、 测试幅度控制稳定之后a、采用幅度和频率同时控制b。采集数据进入频率估计和相位差估计的后续程序的大循环 8、 注意：采样和控制是同时进行的，所以要设置中断，以及看懂AD的程序，以及内部存储以及数据处理资源的分配。 (TMS28335 initialization is complete, 1, the first DDS generated square wave of 73.35hz. (Q flow tube fixed frequency) 2, another digital side of the multiplier input multiplier directly to a fixed value (in accordance with 5v), the coefficient is fixed corresponding PID output interface, serial twelve signal output (need to be a good one GPIO interface). 3, and then after a certain time delay 0.1s or other time, ad signal acquisition were collected two AD signal instability (Why wait until a certain amplitude began collecting AD signal) 4, 250 point estimate a frequency, frequency estimation method using the method of calculation of the number of peak or zero crossing, in short, in order to ensure the accuracy of time-domain estimation algorithm, this piece is a sweep subroutine to calculate the frequency resonance point. 5, after the change of the output frequency of the DDS data of 512 points, the loop processing Sweep 6, after the completion of the frequency control, it can sl)

pic单片机Proteus仿真NEC格式红外，编码，解码，调制三部分(PIC proteus ad da )

停车厂系统 道闸板控制程序 应用在实际工程中(Road gate control program)

FlexRay总线控制器MC9S12XF512软件开发参考手册(FlexRay Bus Controller MC9S12XF512 Software Development Reference Manual)

说明：  控制器局域网总线（CAN，Controller Area Network）是一种用于实时应用的串行通讯协议总线，它可以使用双绞线来传输信号，是世界上应用最广泛的现场总线之一。CAN协议用于汽车中各种不同元件之间的通信，以此取代昂贵而笨重的配电线束。该协议的健壮性使其用途延伸到其他自动化和工业应用。CAN协议的特性包括完整性的串行数据通讯、提供实时支持、传输速率高达1Mb/s、同时具有11位的寻址以及检错能力。(Controller area network bus (CAN Controller, Area Network) is a serial communication protocol for real-time application of the bus, it can use a twisted pair to transmit the signal, is the world's one of the most widely used field bus. The CAN protocol is used to communicate between different components of an automobile to replace the expensive and bulky wiring harness. The robustness of the protocol extends its use to other automation and industrial applications. The characteristics of CAN protocol include serial data communication, integrity to provide real-time support, the transmission rate of up to 1Mb/s, also has 11 bit addressing and error detection capability.)

使用8051通过双积分电路检测电压的程序(8051 by a double integral circuit detection voltage of procedures)

latex排版elsarticle自编程序，排版sci必备(latex typesetting elsarticle self programming, layout sci essential)

温度传感器18b20用C51控制，可以实现功能。操作简单，程序易懂适合入门(Temperature sensor 18b20 with C51 control function can be achieved. Simple, easy to understand procedures for entry)