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Online programming method based on GJB289A bus

A programming method and bus technology, applied in the direction of instrumentation, electrical digital data processing, etc., can solve problems such as unusable code/data, achieve the effects of improving reliability and security, simplifying system implementation, and overcoming application limitations

Inactive Publication Date: 2016-06-29
AVIC NO 631 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some practical applications, only the GJB289A bus is exported in some embedded environments, and the traditional code / data curing methods cannot be used. An online programming method based on the GJB289A bus is needed

Method used

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Embodiment Construction

[0020] A kind of online programming method based on GJB289A bus, this online programming method based on GJB289A bus comprises the following steps:

[0021] 1) The external GJB289A transceiver device is powered on first, and enters the online programming waiting state;

[0022] 2) The external GJB289A transceiver device sends a handshake command to the embedded computer through the GJB289A bus;

[0023] 3) After the power-on self-test of the embedded computer is completed, the handshake response is returned to the external GJB289A transceiver device, and a connection is established with the external GJB289A transceiver device;

[0024] 4) The external GJB289A transceiver device sends the software programming address, software length and check code that need to be received interactively to the embedded computer;

[0025] 5) The embedded computer performs verification after receiving the software programming address, software length and check code sent by the external GJB289A t...

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PUM

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Abstract

An online programming method based on the GJB289A bus, which includes: 1) the external GJB289A transceiver device is powered on and enters the online programming waiting state; 2) the external GJB289A transceiver device sends a handshake command to the embedded computer through the GJB289A bus; 3) the embedded computer After the power-on self-test is completed, reply the handshake response to the external GJB289A transceiver device, and establish a connection with the external GJB289A transceiver device; 4) The external GJB289A transceiver device sends the software programming address, software length and check code to the embedded computer; 5) the embedded computer The computer receives and checks the software programming address, software length and check code sent by the external GJB289A transceiver device; 6) judges the check result. The invention can meet the requirements of the embedded computer to solidify the code / data through the GJB289A bus.

Description

technical field [0001] The invention belongs to the field of embedded computers and relates to a programming method, in particular to an online programming method based on a GJB289A bus. Background technique [0002] The online programming of embedded computers is a problem that must be faced in practical applications. At present, the code / data online programming methods of embedded computers include RS232 bus and Ethernet. Their physical connection interfaces generally pass special tests. The plug socket leads out for use. In some practical applications, only the GJB289A bus is exported in some embedded environments, and the traditional code / data curing methods cannot be used. An online programming method based on the GJB289A bus is needed. Contents of the invention [0003] In order to solve the above-mentioned technical problems in the background technology, the present invention provides an online programming method based on the GJB289A bus that can meet the requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38G06F13/42
Inventor 薄涵睿蔡坚徐宁赵熠刘金学王国东
Owner AVIC NO 631 RES INST
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