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这是XMODEM传输协议原代码,测试只能证明错误的存在，而不能表明程序中没有错误。
测试的两个作用是：确定程序中缺陷的存在；有助于判断该程序在实际上是否可用...
这是XMODEM传输协议原代码,测试只能证明错误的存在，而不能表明程序中没有错误。
测试的两个作用是：确定程序中缺陷的存在；有助于判断该程序在实际上是否可用。
软件测试最困难的问题之一是知道何时停止测试(When to stop testing? )
自己测试自己的程序是不可能的。
当一个软件被测出的缺陷数目增加时，更多的未被发现的缺陷存在的概率也随之增加。
-This XMODEM transfer protocol source code, the test can only be proved wrong there and not show anything wrong procedure. The two test role is : procedures for determining the existence of defects; Contribute to the judge whether the procedure can be used in practice. Software testing the most difficult one of the problems is to know when to stop testing (When to stop testing) testing their own procedures is not possible. When a software detected the increase in the number of defects, more undiscovered flaws in the probability has increased.
- 2022-03-10 02:22:42下载
- 积分：1
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First half of this year the company I am now prepared a flowmeter products PC Mo...
今年上半年我为现公司一款流量计产品编写的上位机Modbus通讯程序（下位机程序也是我用C编写的，由于受到法律许可限制，在此不能上传，不过在将来我会把设计思路传上共享），包括自创的Modbus协议的Delphi实现及其完整调用，还有一份我编写的该产品的完整的Modbus协议说明书，非常有参考价值。-First half of this year the company I am now prepared a flowmeter products PC Modbus communications procedures (the procedures are under-bit machine I use C prepared, because of license restrictions by law, can not upload here, but I will in the future design ideas Chuan-share), including self-Modbus protocol Delphi to achieve their full call, there is also a preparation of the product I am a complete Modbus protocol specification, a very good reference material.
- 2022-08-13 19:53:43下载
- 积分：1
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双串口调试程序
应用背景采用多线程串口通信，占用系统资源极小，自动获取系统串口（实际、虚拟、usb、串口服务器等），开一个程序可以开启两个串口通信界面，尤其方便自发自收，能够自动保存数据，方便多串口调试尤其是单片机开发者使用关键技术本程序采用多线程串口通信类cxComm.h，通过注册表自动获取系统串口（实际、虚拟、usb、串口服务器等），可读取最大256串口号，支持中文发送接收，支持ascii码和16进制通信
- 2022-10-23 20:45:03下载
- 积分：1
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interpol security system using distributed system concepts
interpol security system using distributed system concepts
- 2022-06-29 09:21:21下载
- 积分：1
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test 代码/*输出链表数据*//*建立链表*/
test 代码/*输出链表数据*//*建立链表*/-test code/* output list of data*//* the establishment of linked list* /
- 2023-02-07 22:20:03下载
- 积分：1
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turbo
turbo-code thesis.
I hope your succis
- 2022-08-19 07:37:07下载
- 积分：1
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introduce a famous inequality in statistical signal processing. This inequality...
introduce a famous inequality in statistical signal processing. This inequality can be used widely in equalization and communication signal processing
- 2023-06-14 17:30:18下载
- 积分：1
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一种关于可信平台下身份认证技术的方案，直接匿名证明方案（DAA），该方案可实现匿名性。...
一种关于可信平台下身份认证技术的方案，直接匿名证明方案（DAA），该方案可实现匿名性。-A credible platform on authentication technologies, direct proof of the program Anonymous (DAA), the program can achieve anonymity.
- 2022-02-21 22:59:52下载
- 积分：1
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A. 产生一个长为1000的二进制随机序列，“0”的概率为0.8，”1”的概率为0.2；B. 对上述数据进行归零AMI编码，脉冲宽度为符号宽度的50%，波形采样
A. 产生一个长为1000的二进制随机序列，“0”的概率为0.8，”1”的概率为0.2；B. 对上述数据进行归零AMI编码，脉冲宽度为符号宽度的50%，波形采样率为符号率的8倍，画出前20个符号对应的波形（同时给出前20位信源序列）；C. 改用HDB3码，画出前20个符号对应的波形；D. 改用密勒码，画出前20个符号对应的波形；E. 分别对上述1000个符号的波形进行功率谱估计，画出功率谱；F. 改变信源“0”的概率，观察AMI码的功率谱变化情况；-have a length of 1,000 random binary sequence, "0" with a probability of 0.8, "a" with a probability of 0.2; B. above zero AMI data coding, and pulse width of symbols width of 50%, waveform sampling rate Symbol rate for the eight times that he painted before the 20 symbols corresponding waveforms (also given before 20 Source sequence); C. HDB3 code switch to depict the former 20 symbols corresponding waveform; D. Miller to switch codes to depict the former 20 symbols corresponding waveform; E. respectively above 1,000 symbols for the power spectrum waveform estimated to depict the power spectrum; F. Change source "0" the probability to observe AMI code changes in the power spectrum;
- 2022-05-24 14:06:42下载
- 积分：1
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LTE_RACH 随机接入信道 （TDD LTE）
TDD LTE 系统中的RACH的 matlab 程序代码。欢迎下载。谢谢你的支持。
- 2022-02-19 23:16:23下载
- 积分：1
