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[Linux driver] TQ2440and51 DL : 0: 该资源可实现Tq2440与51单片机串口通信，2440向51发送信息，51收到后将收到的消息回传给2440，并在2440上显示出来，2440上程序用qt开发，2440上串口选择tq2440_serial1(也就是com1，linux下叫ttyS1，因为0口被天嵌用作调式口)，用杜邦线分别接2440的TXD1、RXD1和51的Rxd、Txd相连。-This resource can be realized Tq2440 with 51 single-chip serial communication, 2440 send a message to the 51, 51 will receive the message received back to 2440 and show up in 2440, 2440 on the procedures developed using qt, 2440 serial choice tq2440_serial1 (ie com1, linux under the name ttyS1, because 0 is used for tuning embedded Days mouth), were connected with the DuPont line 2440 TXD1, RXD1 and 51 Rxd, Txd connected.
Date : 2026-01-10 Size : 33kb User : 前郭县
[Linux driver] BEES_v3.4_20140409 DL : 0: 主要特性：　　1、支持多种语言　　BEES支持多种语言，后台添加自动生成，可为每种语言分配网站风格。　　2、功能强大灵活　　BEES除内置的文章、产品等模型外，还可以自定义生成其它模型，满足不同的需求　　3、自定义表单系统　　BEES可自定义表单系统，后台按需要生成，将生成的标签加到模板中便可使用。　　4、模板制作方便　　采用MVC设计模式实现了程序与模板完全分离，分别适合美工和程序员使用。　　5、用户体验好　　前台、后台、会员中心模板都采用 DIV+CSS，兼容 IE 和 Firefox 浏览器，访问速度快。　　6、支持用户反馈信息　　7、SEO优化　　可设置网站SEO参数及所有页面SEO信息，如关键词、页面描述等；　　可全站生成静态html页面　　8、输出内容全部后台设置 -Main features: 1, support for multiple languages BEES to support multiple languages, add background automatically generate, for each language distribution site style. 2, powerful and flexible BEES in addition to the built-in articles, such as product model, also can be customized to generate other models, meet different needs 3, custom form system BEES can custom form system, the background, according to the need to generate the generated tags added to the template can be used. 4, easy templating Using MVC design pattern to realize the procedure and the template for complete separation, respectively suitable for artists and programmers. 5, good user experience Front desk, backstage, member center templates using DIV+ CSS, compatible with Internet explorer and Firefox browser, access speed. 6, support the user feedback information 7, SEO optimization Parameters and all pages can be set up web site SEO SEO information, such as key words, page description, etc.
Date : 2026-01-10 Size : 3.66mb User : Las
[Linux driver] adc DL : 0: 该ADC模块总共有8个通道可以进行模拟信号的输入，分别是AIN0、AIN1、AIN2、AIN3、YM、YP、XM、XP。那么ADC是怎么实现模拟信号到数字信号的转换呢？首先模拟信号从任一通道输入，然后设定寄存器中预分频器的值来确定AD转换器频率，最后ADC将模拟信号转换为数字信号保存到ADC数据寄存器0中(ADCDAT0)，然ADCDAT0中的数据可以通过中断或查询的方式来访问。开发板通过一个10K的电位器(可变电阻)来产生电压模拟信号，然后通过第一个通道(即：AIN0)将模拟信号输ADC。-The ADC module has a total of eight channels can be input analog signals are AIN0, AIN1, AIN2, AIN3, YM, YP, XM, XP. So is how ADC analog signal to digital signal conversion it? First, the analog input signal either channel, and the set value of the prescaler register AD converter to determine the frequency and finally ADC to convert analog signals to digital signals to the ADC saved data register 0 (ADCDAT0), then ADCDAT0 in the data can be accessed via interrupt or query. Development board to generate a voltage analog signal through a 10K potentiometer (variable resistor), and then through the first channel (ie: AIN0) analog signal output ADC.
Date : 2026-01-10 Size : 2kb User : 立即
[Linux driver] Code DL : 0: 一、编写一段程序，使其现实进程的软中断通信。 1．要求：使用系统调用fork()创建两个子进程，再用系统调用signal()让父进程捕捉键盘上来的中断信号（即按DEL键）；当捕捉到中断信号后，父进程用系统调用Kill()向两个子进程发出信号，子进程捕捉到信号后分别输出下列信息后终止： Child Processll is Killed by Parent! Child Processl2 is Killed by Parent! 父进程等待两个子进程终止后，输出如下的信息后终止： Parent Process is Killed! -Third, write a program to process the reality of soft interrupt communications. 1. Requirements: use of system calls fork () to create two sub-processes, and then the system call signal () allows the parent process to capture up keyboard interrupt signal (ie DEL key) when the capture interrupt signal, the parent process with a system call Kill () signals to the two sub-processes, respectively, after the termination of the output of the following information to capture the signal after the child process: Child Processll is Killed by Parent! Child Processl2 is Killed by Parent! The parent process to wait for termination of two sub-processes, after the termination of the output of the following information: Parent Process is Killed!
Date : 2026-01-10 Size : 67kb User : JING