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用VB编写的串口数据采集的程序，是个比较典型的小例子 485通讯协议...
用VB编写的串口数据采集的程序，是个比较典型的小例子 485通讯协议-Visual Basic and Com Comunicaition
- 2022-09-16 11:05:03下载
- 积分：1
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你知道睡眠（）/ usleep() / nanosleep()不好延迟的问题。
As you have learnt that sleep( )/usleep()/nanosleep() are not good to delay a process. Timers can provide more accurate time control in applications. In this lab, you will explore POSIX timers and signal programming, experience the timer drift.
The primary focus of this lab will be "time". The experiment will show you several methods to measure time in your applications.
- 2022-01-26 16:17:48下载
- 积分：1
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This procedure is implemented on PIC Singlechip CAN communication protocol, usin...
本程序是在PIC单片机上实现的CAN通信协议，使用的是C语言编程，具有详细的注释。-This procedure is implemented on PIC Singlechip CAN communication protocol, using a C language programming, with detailed notes.
- 2022-03-30 09:28:39下载
- 积分：1
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C51汇编必做试验3
C51汇编必做试验3 -- 键盘扫描（C51最常见的应用哦）-ASM exam3-- Scan KeyBoard.
- 2022-08-20 12:51:23下载
- 积分：1
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开发环境ADS，
直流电机控制实验
掌握使用PWM方式控制直流电机的转动速度。...
开发环境ADS，
直流电机控制实验
掌握使用PWM方式控制直流电机的转动速度。-Development Environment ADS, DC motor control experiment to master the use of PWM control of DC motor rotation speed.
- 2023-02-18 03:00:03下载
- 积分：1
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In electronic technology, the frequency is one of the most basic parameters, but...
在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct
- 2023-03-06 02:50:04下载
- 积分：1
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LPC900 microcontroller design program
LPC900单片机设计方案--自动响铃实验系统，完整的程序代码，可以直接运行！-LPC900 microcontroller design program-- automatically ringing experimental system, the integrity of the program code, can directly run!
- 2022-02-04 17:20:50下载
- 积分：1
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讲述高速数字电路的设计和布线原理，有很多具体的技巧和经验...
讲述高速数字电路的设计和布线原理，有很多具体的技巧和经验-on high-speed digital circuit design and wiring principle, there are many specific skills and experience
- 2022-01-22 09:01:45下载
- 积分：1
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针对USB2SPI128芯片的上位机驱动程序的源代码，主要是中国联通…
针对USB2SPI128芯片的上位机驱动程序的源代码，主要是联通PC机的底层USB驱动和下位机单片机的通讯。-USB2SPI128 chip host computer for the driver source code, mainly to China Unicom PC-bottom USB drive and the next crew microcontroller communications.
- 2022-11-20 20:50:03下载
- 积分：1
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工程师在用Keil开发程序时，在代码性能要求较高的场合，需要对代码段的执行时间作统计。比如在做LED显示屏软件扫描程序，或一些定时采集数据程序，如果在软件仿真的...
工程师在用Keil开发程序时，在代码性能要求较高的场合，需要对代码段的执行时间作统计。比如在做LED显示屏软件扫描程序，或一些定时采集数据程序，如果在软件仿真的时候就能够清晰知道代码段的运行时间，那就可以对程序进行优化，或者插入汇编代码(asm)达到最高运行速度。
关键字:Keil DLL C语言 ASM 汇编-engineers in the development process with Keil, the code performance requirements higher occasions, need to block the execution time statistics. For example, in the software do LED scanning procedures, or some regular data collection procedures, If the software simulation time can understand clearly code of the running time, it can process optimization, or insert code compilation (asm2) to achieve maximum speed. Keywords : Keil DLL C language compilation ASM
- 2022-09-10 18:40:02下载
- 积分：1
