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实现了一个16550 / 16750 UART核
Implements a 16550/16750 UART core
- 2023-02-26 01:10:03下载
- 积分:1
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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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电子皮带秤选型工具,让你快速完成选型,并洞察到各种数据情况...
电子皮带秤选型工具,让你快速完成选型,并洞察到各种数据情况-Electronic Belt Scale Selection tool allows you to quickly complete the selection, and insight into the situation of various data
- 2022-01-28 14:14:00下载
- 积分:1
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C8051F340单片机双串口同时工作 中断接收数据 查询发送数据
C8051F340单片机双串口同时工作 中断接收数据 查询发送数据-C8051F340 MCU pairs of serial ports simultaneously send data to interrupt reception data query
- 2023-05-01 20:20:03下载
- 积分:1
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Corrado Cavalli为VB.NET写的串口通讯类。通过调用API的方法与串口通讯。我的有关串口通讯的程序都是用的这个类。...
Corrado Cavalli为VB.NET写的串口通讯类。通过调用API的方法与串口通讯。我的有关串口通讯的程序都是用的这个类。-Corrado Cavalli to write VB.NET serial communications. By calling the API methods and serial communications. Serial I of the communications procedures are used in this category.
- 2022-02-04 05:17:27下载
- 积分:1
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一个简单的电脑红外遥控驱动程序,只能识别特定的红外信号(我是基于K11B遥控器编的),不能自动识别,还有一些简单的,控制其它程序的方法...
一个简单的电脑红外遥控驱动程序,只能识别特定的红外信号(我是基于K11B遥控器编的),不能自动识别,还有一些简单的,控制其它程序的方法-A simple computer infrared remote control driver, could only identify a specific infrared signals (I was compiled based on the remote control K11B), does not automatically recognize, there are some simple method of controlling other programs
- 2022-08-16 08:59:52下载
- 积分:1
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visual c6.0实现的窜口通讯,窜口输入输出接受程序简单测试,可以运用到工程中
visual c6.0实现的窜口通讯,窜口输入输出接受程序简单测试,可以运用到工程中-visual c6.0 I realize the channeling communications, input and output channeling I accept the simple test procedure can be applied to engineering
- 2022-10-23 23:20:04下载
- 积分:1
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Bluetooth
Bluetooth
- 2022-03-05 11:22:11下载
- 积分:1
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pb9com Contents : PowerBuilder 9.0 in the development of the COM achieve example...
pb9com目录:在PowerBuilder 9.0实现COM开发的例子;-pb9com Contents : PowerBuilder 9.0 in the development of the COM achieve example;
- 2022-10-10 19:30:03下载
- 积分:1
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12,14,16点阵汉字显示文件
12,14,16点阵汉字显示文件
12,14,16点阵汉字显示文件
12,14,16点阵汉字显示文件-12,14,16 dot matrix display Chinese characters files characters dot matrix display documents 12,14,16
- 2023-01-22 01:40:04下载
- 积分:1