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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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基于VC的串口通讯的食堂饭卡系统,需要与相应的哈…
VC实现基于串口通讯的食堂饭卡系统,需要和相应的硬件结合实现.废话不多说了,大家下载吧,呵呵,给点评价哦!-VC based serial communications canteens Fanka system, needs and corresponding hardware combination to achieve. nonsense, said little, we downloaded it, huh, to the point evaluation Oh!
- 2022-09-26 02:50:02下载
- 积分:1
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Serial debugging assistant to support a variety of data conversion, but also to...
串口调试助手,支持各种数据转换,也可保存接收的数据-Serial debugging assistant to support a variety of data conversion, but also to receive data can be stored
- 2022-06-01 18:55:45下载
- 积分:1
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vbrs232 c avr
测量温度上下位编程代码,测试绝对好用,欢迎学习使用,请勿用于商业用途。-vbrs232 c avr
- 2022-02-20 02:19:08下载
- 积分:1
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用FPGA实现RS232,代码经过测试通过
用FPGA实现RS232,代码经过测试通过-FPGA implementation using RS232, the code has been tested through
- 2023-01-19 10:50:03下载
- 积分:1
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VC++ multi
VC++下的多串口通信程序,并具有其他功能-VC++ multi-serial communication program, and has other functions
- 2023-04-21 20:20:03下载
- 积分:1
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参加一竞赛的程序(我负责的部分),包括STH11温湿度传感器的驱动,一般模拟传感器的串口通信...
参加一竞赛的程序(我负责的部分),包括STH11温湿度传感器的驱动,一般模拟传感器的串口通信-participate in a contest (my part), including STH11 temperature and humidity sensor-driven, Sensor Simulation general Serial Communication
- 2022-10-01 21:50:08下载
- 积分:1
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modbus通信协议中文版,详细介绍了modbus协议,LRC校验,CRC校验等,并给出了C语言例程代码。...
modbus通信协议中文版,详细介绍了modbus协议,LRC校验,CRC校验等,并给出了C语言例程代码。-modbus conmmunication(chinese)- Modbus protocol,LRC,CRC,how to program with C
- 2022-05-20 11:47:10下载
- 积分:1
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本程序的开发环境是VC++,实现的功能是串口通信.
本程序的开发环境是VC++,实现的功能是串口通信.-This procedure is the development environment VC++, The function is to realize serial communication.
- 2023-04-07 06:55:03下载
- 积分:1
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about serial communication programming, vc achieve! Multi
讲述串口通信编程,vc实现!多线程,异步方式。-about serial communication programming, vc achieve! Multi-threaded, asynchronous mode.
- 2022-10-11 10:10:03下载
- 积分:1