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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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夸脱
时间调度相关的开源代码,时间调度相关的开源代码-quarts
- 2022-06-20 06:44:41下载
- 积分:1
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一个用于ARM7CPU的源程序,比较简单,定时器.
一个用于ARM7CPU的源程序,比较简单,定时器.-One for the source ARM7CPU, relatively simple timer.
- 2023-07-11 11:40:11下载
- 积分:1
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连接串口通讯程序,采用EVB书写模块,MScomm控件
连接串口通讯程序,采用EVB书写模块,MScomm控件-Connect the serial communication program, using EVB writing module, MScomm control
- 2022-02-06 11:50:53下载
- 积分:1
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串口接收数据可以接受任意格式的串口的输出数据
串口接收数据可以接受任意格式的串口的输出数据-Serial receive data can accept any format of the serial output data
- 2022-02-03 00:25:15下载
- 积分:1
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开源串口利用Xmodem,Ymodem,ZModem 下载,上传的程序.在Linux,Arm
开源串口利用Xmodem,Ymodem,ZModem 下载,上传的程序.在Linux,Arm-Linux 都可使用-Open serial port using Xmodem, Ymodem, ZModem download, upload procedure. In Linux, Arm-Linux can be used
- 2022-08-13 12:28:55下载
- 积分:1
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VC6 multithread serial operation, thread synchronization solution (terminal)
VC6 多线程的串口操作,有线程同步的解决方法(terminal)-VC6 multithread serial operation, thread synchronization solution (terminal)
- 2023-03-22 02:25:04下载
- 积分:1
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260 sampling ad
260 ad采样-260 sampling ad
- 2022-12-14 01:55:03下载
- 积分:1
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A team to carry out the operation of serial procedures, can serve as a learning...
一个队串口进行操作的程序,可以作为学习串口编程的资料-A team to carry out the operation of serial procedures, can serve as a learning serial programming data
- 2022-11-23 11:45:03下载
- 积分:1
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IrDA(verilog)和UART设计
IrDA & UART Design (Verilog)
- 2022-05-18 18:13:54下载
- 积分:1