Variable exchange transmission address offline distribution method of embedded device

Abstract

The invention discloses a variable exchange transmission address offline distribution method of an embedded device. The method comprises: establishing a visual page by graphical elements, extracting cross-page connection information among plug-ins of the device, to form an output-input list used for signal exchange among the plug-ins; with the plug-in as unit, distributing variable transmission addresses in an offline manner, to form a plug-in configuration text, recording output variable address and input variable related address information; after the configuration text is downloaded to the device, a plug-in system boostrap program analyzing the address information, in a periodic task, variable values being refreshed to corresponding bus transmission addresses, to complete variable exchange. The method can greatly reduce power-on time of the embedded device, and improves volume production efficiency.

Description

Technical field [0001] The invention belongs to a transmission address allocation method for variable exchange between plug-ins based on a bus in the field of embedded device development, and in particular relates to an offline allocation method for embedded device variable exchange transmission addresses. Background technique [0002] In the fields of power system control and protection and industrial control, with the increasing complexity of application functions, multiple plug-ins (including CPU or DSP) are required to work together to complete the corresponding control and protection tasks, and the amount of data that needs to be exchanged between plug-ins is also increasing. . [0003] Literature [1] provides a backplane serial bus technology that combines high-speed and large-capacity with supporting peer-to-peer data transmission between multiple nodes, which can realize real-time data exchange between multiple nodes in the device. This article focuses on serial Implement...

AI Technical Summary

Problems solved by technology

When the amount of exchanged data is large, due to the large amount of registration messages sent and received, the mode based on the master-slave architecture leads to a long device initialization time, which affects the mass production efficiency. In addition, it is impossible to know the variable transmission address information in advance and the variable type cannot be verified in advance. Matching, making it difficult to debug and diagnose

At the same time, manual editing of configuration files is prone to errors, and it is impossible to intuitively browse the variable exchange relationship. Therefore, a graphical and visual way is needed to display the data flow, and automatically form the configuration file according to the graphical page information.

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