Instruction code online binding method

Abstract

The invention proposes an online binding method of instruction codes, aiming at providing an online binding method of instruction codes with good confidentiality, simplicity, quickness, safety and reliability. The present invention is realized through the following technical solutions: firstly, the code loading equipment on the ground reads in the encrypted code table file, and completes the decryption of the code table file. Then, the decrypted command code is sent to the command receiving device through the serial port communication protocol, and the command receiving device completes the data reception and analysis of the command code through the serial port transceiver circuit and the FPGA digital circuit, and performs CRC check on the parsed data. After passing, the data is stored in the memory to avoid data loss due to power failure. Finally, the instruction receiving device reads back the instruction code storage data in the memory, performs CRC check again, and sends the read-back instruction code storage data and verification results back to the ground loading equipment for comparison. If it is the same, it means that the binding is successful, otherwise an error message will be given and the binding will be done again.

Description

technical field [0001] The invention relates to an online binding method for instruction codes of an instruction receiving device in the field of data communication. Background technique [0002] At present, the command code binding method of the command receiving device mainly adopts the code disc binding method, that is, a code disc circuit is set inside the command receiving device, and the hard connection of the code disc circuit corresponds to each bit of information of the command code, and by changing the hard connection The on-off state of the command code can be flexibly modified to the "0" and "1" states of the bit information of the instruction code. Although this code disc binding method has the advantages of simple circuit implementation and high reliability, it has the following disadvantages: [0003] One is that the confidentiality of the code disc is poor, and the code loading operation is inconvenient. The code disc adopts a hard connection method. Once t...

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Problems solved by technology

[0003] One is that the confidentiality of the code disc is poor, and the code loading operation is inconvenient

The code disc is hard-connected. Once the hardware circuit is exposed, there must be a certain risk of leakage, resulting in poor confidentiality of the code disc.

For the safety of the code disc, the structural design of the code disc needs to be sealed, but it will cause inconvenient and quick operation every time the command code is bound. The coder must open the cover of the command receiving device before loading the code.

[0004] The second is that the code loading operation during the binding process of the code disc is irreversible. Once a human error occurs, the hard connection of the code disc circuit will be damaged, and it will not be able to recover quickly at the test site, which will seriously affect the test progress.

[0005] It can be seen that although the code disc binding method of the existing instruction receiving equipment is simple to implement and has high reliability, after long-term use, the code disc circuit has a certain risk of leaking, and there are also problems such as inconvenient and fast loading operation and irreversible coding process. Disadvantages of use

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