-
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
-
Bluetooth GPS receiver using satellite positioning data packets, and stored in t...
用蓝牙接收GPS卫星定位数据包,并存入数据库.-Bluetooth GPS receiver using satellite positioning data packets, and stored in the database.
- 2023-08-13 22:35:03下载
- 积分:1
-
串口波特率设置小软件
串口波特率设置小软件-serial port baud rate set small software
- 2023-06-05 12:00:04下载
- 积分:1
-
串口调试助手
串口调试助手 -serial debugging assistant serial debugging assistant
- 2022-06-27 06:44:59下载
- 积分:1
-
USBDC system
众志-863系统芯片 USBDC(univer serial bus devce control通用串行总线设备控制芯片,以下简称USBDC)是和带有USB主机控制器的设备进行通信的支持部件,实现和带有USB主机控制器的设备进行数据交换。 USBDC和APB连接进行寄存器的初始化配置,和DMAC连接进行大量的数据交换。-USBDC system-on-chip (Univer serial bus control devce Universal Serial Bus device control chips, hereinafter referred USBDC) and USB host controller with the communications equipment of support components, to achieve and with a USB host controller equipment for data exchange. USBDC and APB connection configuration register initialization, and DMAC link for the exchange of large amounts of data.
- 2022-02-13 22:46:32下载
- 积分:1
-
DM642串口UART(DM642模拟串口源)
DM642 MCBSP UART(DM642 模拟串口源码)-DM642 MCBSP UART (DM642 analog serial source)
- 2022-01-30 22:30:09下载
- 积分:1
-
实现串口的通信功能
实现串口的通信功能-Serial communication function
- 2022-02-05 10:22:43下载
- 积分:1
-
一个gps通讯接口程序可及时更新计算机时间
一个gps通讯接口程序可及时更新计算机时间-A gps communications interface program may update computer time
- 2022-02-05 08:01:59下载
- 积分:1
-
本软件在C++ Builder 6.0开发环境下编程,实现的功能是:如果将本机的两个串口通讯口COM1和COM2连接起来,可以实现本机内这两个COM口间的数据的...
本软件在C++ Builder 6.0开发环境下编程,实现的功能是:如果将本机的两个串口通讯口COM1和COM2连接起来,可以实现本机内这两个COM口间的数据的传输;若将两台电脑的COM口连接起来,可以实现这两台电脑的串行数据传输。-the software in C Builder 6.0 development environment programming, the functions are : If the machine two serial communication port COM1 and COM2 link up the machine can achieve this within two COM ports of data transmission; if two computers connected to the COM port, This can be achieved two computer serial data transfer.
- 2022-01-25 22:30:26下载
- 积分:1
-
实现对philp快球的串口控制,可以控制快球的上下左右的转动。除了本身的控制界面外,还提供了网络的接口,可以在网络上对其实施控制。需要著名的组件trayicon...
实现对philp快球的串口控制,可以控制快球的上下左右的转动。除了本身的控制界面外,还提供了网络的接口,可以在网络上对其实施控制。需要著名的组件trayicon和控件msco-to achieve faster serial control of the ball, control the ball around the next turn. In addition to the control interface, but also provides a network interface, the network can implement their control. Need famous trayicon components and controls msco
- 2022-02-12 14:32:55下载
- 积分:1