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gt911
本程序为完整的用GT911芯片设计的触摸屏程序,可以供开始设计触摸屏的一个很好的参考,值的收藏(This program is complete with the GT911 chip design touch screen program, you can begin to design a touch screen for a good reference value of the collection)
- 2021-04-02 19:09:07下载
- 积分:1
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PLL-for-Power-Converters-Control
本文详细介绍了基于正负序分离的PLL锁相环控制理论。(Synchronous Reference Frame PLL for Power Converters Control)
- 2014-09-29 19:30:47下载
- 积分:1
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200711-0054-05
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)
- 2013-04-07 15:03:14下载
- 积分:1
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WinAvraAvrStudio
AVRstudio和winavr的联用,多个文档,对于刚刚入门的单片机爱好者们非常有用。(AVRstudio and winavr hyphenated, multiple documents, for just getting started microcontroller enthusiasts very useful.)
- 2013-09-19 17:11:03下载
- 积分:1
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STM32OLED显示实验
说明: STM32进行OLED驱动,以进行验证驱动成功。(STM32 Drives OLED.To verify driver success.)
- 2020-06-16 11:00:02下载
- 积分:1
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温度传感器
实现温度传感功能 使用1602显示屏 52单片机控制(Realization of Temperature Sensing Function Using 1602 Display Screen 52 Single Chip Microcomputer Control)
- 2019-04-28 20:39:44下载
- 积分:1
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udfconfig
此程序是CFD中用户自定义中的定义速度变化的程序,输入到Fluent中控制入口速度(This program is a change of user-defined in the definition of speed in CFD program, the input to control the inlet velocity in Fluent)
- 2012-05-29 16:36:47下载
- 积分:1
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HT1621
HT1621汇编显示驱动,包含显示初始化,字节读写,蜂鸣驱动,程序经过验证,已产品化多年的程序稳定运行工作。(HT1621 Series display drivers, including display initialization, bytes read and write, buzz-driven, proven procedures, the procedures have been products of years of stable operation of the work.)
- 2010-05-19 00:10:05下载
- 积分:1
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PHD15A4100-01
一段简单的幻影灯控制程序,新人可以拿来泡妹纸。(A simple piece of phantom lights control procedures can be used to soak the new sister paper.)
- 2016-05-12 09:05:07下载
- 积分:1
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430.13
430读写IIC总线以及中断控制程序(430 literacy IIC bus and interrupt control procedures)
- 2005-01-17 16:03:51下载
- 积分:1