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Description: 本文件描述了一个基于串口实现文件传输的协议eXmodem,该协议基于标准Xmodem File Transfer Protocol,是一个独立标准,完全功能,全新的文件传输协议。
1)该协议除实现Xmodem File Transfer基本功能,即已实现了在两个设备相互之间,通过串口把一个设备内文件传输至另一个设备内;其增强功能所列参考如下:
a)两个设备相互之间传输文件能够以一致的文件目录存放;
b)两个设备相互之间可以传输任意大小的文件,而Xmodem File Transfer只能传送128 *n字节大小的文件;
c)具备避免一个文件在两个设备相互之间重复传输的功能,提高了文件传输的效率。
-This document describes the realization of a document based on serial transmission agreement eXmodem. Based on the agreement Xmodem standard File Transfer Protocol, Standard is an independent, fully functional, new file transfer protocol. 1) Implementation of the agreement except Xmodem File Transfer basic functions, is realized in equipment between the two, put through a serial devices to another document transmission equipment; its reference listed enhancements are as follows : a) between two equipment to transfer files to the same directory storage; b) equipment between two transmission can be any size document, and Xmodem File Transfer can only transmit 128 * n byte size of the document; c) avoid a document with the equipment between two transmission repeat function, improve the file t
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Size: 14798 |
Author: 6756 |
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Description: 采用128字节,xmodem协议,从串口引导的bootloader
Platform: |
Size: 6445 |
Author: wdz |
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Description: 本文件描述了一个基于串口实现文件传输的协议eXmodem,该协议基于标准Xmodem File Transfer Protocol,是一个独立标准,完全功能,全新的文件传输协议。
1)该协议除实现Xmodem File Transfer基本功能,即已实现了在两个设备相互之间,通过串口把一个设备内文件传输至另一个设备内;其增强功能所列参考如下:
a)两个设备相互之间传输文件能够以一致的文件目录存放;
b)两个设备相互之间可以传输任意大小的文件,而Xmodem File Transfer只能传送128 *n字节大小的文件;
c)具备避免一个文件在两个设备相互之间重复传输的功能,提高了文件传输的效率。
-This document describes the realization of a document based on serial transmission agreement eXmodem. Based on the agreement Xmodem standard File Transfer Protocol, Standard is an independent, fully functional, new file transfer protocol. 1) Implementation of the agreement except Xmodem File Transfer basic functions, is realized in equipment between the two, put through a serial devices to another document transmission equipment; its reference listed enhancements are as follows : a) between two equipment to transfer files to the same directory storage; b) equipment between two transmission can be any size document, and Xmodem File Transfer can only transmit 128* n byte size of the document; c) avoid a document with the equipment between two transmission repeat function, improve the file t
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Size: 14336 |
Author: 6756 |
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Description: 在VC6.0下编译,可以通过Xmodem—128、256、512和1K Xmodem协议传输文件到单片机,避免了繁琐的烧录步骤-In VC6.0 compiled, you can Xmodem-128, 256,512 and the 1K Xmodem protocol to transfer files to the microcontroller, avoiding the tedious steps in burning
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Size: 95232 |
Author: 邢庆广 |
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Description: Xmodem传输协议上位机软件,使用VC++6.0编码,支持128字节和1024字节两种传输模式,同时支持CRC校验以及和校验两种校验方式。使用128字节块模式下载360K代码只需43秒。-Xmodem host computer to download the code, using VC++6.0 code, 128 bytes and 1024 bytes of two transmission modes, supports CRC checking and verification and validation of two methods. 128-byte block mode only 43 seconds to download 360K code.
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Size: 2651136 |
Author: Davinci |
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Description: XMODEM协议是一种使用拨号调制解调器的个人计算机通信中广泛使用的异步文件运输协议。这种协议以128字节块的形式传输数据,并且每个块都使用一个校验和过程来进行错误检测。-XMODEM is asynchronous file transport protocol to use a personal computer dial-up modem communication widely used. This form of transport protocol data block of 128 bytes, and each block uses a checksum for error detection process.
Platform: |
Size: 234496 |
Author: rory |
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Description: XMODEM协议是一种串口通信中广泛用到的异步文件传输协议。分为标准Xmodem和1k-Xmodem两种,前者以128字节块的形式传输数据,后者字节块为1k即1024字节,并且每个块都使用一个校验和过程来进行错误检测。在校验过程中如果接收方关于一个块的校验和与它在发送方的校验和相同时,接收方就向发送方发送一个确认字节(ACK)。由于Xmodem需要对每个块都进行认可,这将导致性能有所下降,特别是延时比较长的场合,这种协议显得效率更低。(XMODEM protocol is a widely used serial communication in the asynchronous file transfer protocol. Divided into standard Xmodem and 1k-Xmodem two, the data of 128 byte blocks, the blocks of bytes for 1K is 1024 bytes, and each block with a checksum and the process for error detection in the verification process. If the receiver is about a block and check with it at the sender's check and at the same time, the receiver to the sender sends a confirmation byte (ACK). Because the Xmodem needs are recognized for each block, which will lead to the decline in performance, especially the long delay situations, this agreement is less efficient.
In addition to Xmodem, and Ymodem, Zmodem protocol. Their agreement is similar to Xmodem, the difference is that Ymodem allows batch file transmission, high efficiency; Zmodem is improved by Xmodem, it only needs to damage other block retransmission, the correct block does not need to send a confirmation byte. Reduces the amount of communication.)
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Size: 3072 |
Author: 雄霸天下19
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