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SPI读写,通过RS232协议传输!弹片机读写!
SPI读写,通过RS232协议传输!弹片机读写!-err
- 2023-02-07 08:40:04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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IrDA(verilog)和UART设计
IrDA & UART Design (Verilog)
- 2022-05-18 18:13:54下载
- 积分:1
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这是一个GPS芯片的程序,能够读取各种GPS信号,采用串口通信,能够准确地定位地理信息...
这是一个GPS芯片的程序,能够读取各种GPS信号,采用串口通信,能够准确地定位地理信息-This is a GPS chip procedures, be able to read a variety of GPS signal, using serial communications, be able to accurately geo-positioning information
- 2022-04-22 14:06:54下载
- 积分:1
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Tektronix TDS3000&TDS3000B series oscilloscope program examples ver3.0
Tektronix TDS3000&TDS3000B series oscilloscope program examples ver3.0
- 2022-02-04 18:48:53下载
- 积分:1
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SPCE061A为核心的转换控制(Drivers汇编代码):以太网 RS232
SPCE061A为核心的转换控制(Drivers汇编代码):以太网 RS232-SPCE061A at the core of the change of control (Drivers assembly code): Ethernet RS232
- 2022-05-05 21:55:10下载
- 积分:1
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485通讯接口模块的编程应用,监控显示,检测报警显示,上下值的设置输入输出的结构...
485通讯接口模块的编程应用,监控显示,检测报警显示,上下值的设置输入输出的结构-485 Communications Interface Module programming applications, monitor display, alarm detection showed that the whole value of the structure of input and output settings
- 2023-07-28 07:15:03下载
- 积分:1
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手机Camera部分上层软件代码,包括各种模式下的操作
手机Camera部分上层软件代码,包括各种模式下的操作-Camera phones upper part of software code, including various modes of operation
- 2022-09-08 22:55:03下载
- 积分:1
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Siemens 300 a procedure. Is HMI (WINCC) integration of a program
西门子300的一个程序。是和HMI(WINCC)集成的一个程序-Siemens 300 a procedure. Is HMI (WINCC) integration of a program
- 2023-06-21 02:25:04下载
- 积分:1
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该文件是通过BCB加MOXARS232函数编写的,用起来很爽
该文件是通过BCB加MOXARS232函数编写的,用起来很爽-The document was adopted BCB increase MOXARS232 function of the preparation, together with very interesting
- 2023-01-26 18:30:03下载
- 积分:1