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从串口读取数据,有两种方法,1、每接收一个EV_RXCHAR,就用ReadFile读一次,这样我觉得太恐怖了。2、接收到一个EV_RXCHAR后,等一定数据量的...
从串口读取数据,有两种方法,1、每接收一个EV_RXCHAR,就用ReadFile读一次,这样我觉得太恐怖了。2、接收到一个EV_RXCHAR后,等一定数据量的CPU周期(GetTickCount),再一次性读取缓冲区里的数据。这样做,一般情况下不会有问题,但是,如果数据很多,过了“一定数据量的CPU周期”,还没收完数据怎么办?就会少读数据了。 我用三个线程序来完成串口数据的接收,其实就是第一种方法的变种: 一个侦听EV_RXCHAR,一个对EV_RXCHAR进行分析,其实就是超时判断。如果接收到一个消息后,一段时间没收到下一个EV_RXCHAR,就认为是一个数据包的结束。这个线程就会通知数据接收线程,进行数据接收。一般同一包数据,两个字符之间的时间间隔,应该很小了吧,而两个数据包之间的间隔,应该不会太小吧!(这个地方我不清楚,猜的:( :) )最后一个线程,是接收数据的。-read data from the serial port, there are two methods, one, each receiving a EV_RXCHAR, on the ReadFile read, I think this vote. 2, received a EV_RXCHAR after a certain volume of data, such as CPU cycles (GetTickCount), and the one-time reader, the data buffer. To do so, under normal circumstances there is no problem, but if many of the data, and after a "certain amount of data the CPU cycles," also confiscated End Data how do? Few will read the data. I used three lines to complete serial data reception, the first method is a variant : an interception EV_RXCHAR, one pair of EV_RXCHAR analys
- 2023-03-23 09:55:03下载
- 积分:1
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工具 vs2005 进行串口的列示、检测,错误提示,并数据读取
工具 vs2005 进行串口的列示、检测,错误提示,并数据读取 -tools for Serial vs2005 the presentation, detection, errors, and data acquisition
- 2022-03-16 03:39:29下载
- 积分:1
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SZ328串行通讯驱动及应用开发包,为2个CPU间协议通讯应用实例.
SZ328串行通讯驱动及应用开发包,为2个CPU间协议通讯应用实例.-SZ328 serial communication driver and application development kit for the two inter-CPU communication protocol application.
- 2022-10-04 15:25:03下载
- 积分:1
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语音de 椅子 好学习大
语音de 椅子 好学习大-voice de studying the big chair
- 2022-01-26 03:15:23下载
- 积分:1
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关于UPS的串口通信协议的原代码,适合跟此相关项目
关于UPS的串口通信协议的原代码,适合跟此相关项目-On the UPS serial communication protocol of the original code, suitable for projects with related
- 2022-07-25 08:59:56下载
- 积分:1
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串口通信,写成dll便于参阅
串口通信,写成dll便于参阅-serial communication, written dll ease of reference
- 2023-07-28 21:10:03下载
- 积分:1
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好东东,用C写的,USB接口程序,很好用
好东东,用C写的,USB接口程序,很好用-Dongdong good with C wrote, USB interface program, a very good use
- 2022-06-25 23:39:43下载
- 积分:1
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单片机的通用串口接收和发送无线信息,无线接收…
单片机通用串口uart接收与发送无线信息,实现无线接收。-MCU Universal Serial uart receive and transmit a wireless message, wireless receiver.
- 2022-03-14 09:56:41下载
- 积分:1
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This program writes a lcd HyperTerminal and everything you type on your keyboard...
This program writes a lcd HyperTerminal and everything you type on your keyboard to pc, using codevisionavr.
- 2022-01-21 02:56:41下载
- 积分:1
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Serial programming is on the serial number, multithreading, the details of the n...
串口编程,是关于多串口,多线程,有详情的说明-Serial programming is on the serial number, multithreading, the details of the note
- 2022-01-25 15:47:05下载
- 积分:1