Upgrading method and system for logic chip

A logic chip, chip technology, applied in the field of communication, to meet the effect of large-scale production and improve efficiency

Active Publication Date: 2017-04-26
XIAN UNIVIEW INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The invention provides a logic chip upgrading method, which is used to solve how to reduce the signal of the motherboard chip from interfering with the manual loading program, realize accurate manual loading of the program to the logic chip, and improve the efficiency of the loading program and the simplicity of operation The problem

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  • Upgrading method and system for logic chip
  • Upgrading method and system for logic chip
  • Upgrading method and system for logic chip

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Embodiment Construction

[0052] As described in the background, in order to make the board work normally, it is necessary to manually load the program to the logic chip when the board is powered on for the first time. However, due to the influence of the motherboard chip signal, the manually loaded data will be wrong, and even the normal use of the chip will be affected in serious cases. In this regard, in the prior art, a method of adding a jumper between the motherboard chip and the logic chip is used to block the influence of the CPU signal. However, since the jumper needs to be added during on-site operation, the operation process is increased and the efficiency of the upgrade is reduced. , which is not conducive to large-scale production.

[0053] Therefore, the present application proposes a logic chip upgrade method to reduce the signal of the motherboard chip from interfering with the manual loading program, realize accurate manual loading of the program to the logic chip, and improve the effi...

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Abstract

The invention discloses an upgrading method for a logic chip. When access of peripheral equipment is detected, a connector sends upgrading data provided by the peripheral equipment to the logic chip and sends a first low level signal to a switch control circuit to cause a data buffer to be in a high resistance state; the logic chip sends a second high level signal to the switch control circuit to cause the data buffer to be in an output state; in the output state, the data buffer sends the upgrading data provided by a mainboard chip to the logic chip. Therefore, during manual data loading to the logic chip, the influence of a signal from the mainboard chip is isolated. Moreover, due to the fact that all operation can be completed automatically, the upgrading efficiency of the logic chip is improved, and the demand for large-scale production is met. Meanwhile, the invention furthermore provides an upgrading system for the logic chip.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for upgrading a logic chip, and at the same time, the application also relates to a system for upgrading a logic chip. Background technique [0002] Online upgrade of logic chip (such as CPLD, etc.) program is widely used in single board design. Using online upgrade method can significantly improve production efficiency and post-maintenance efficiency, reduce equipment cost, and help to improve equipment intelligence. [0003] However, in the process of online upgrading of the logic chip program, there are the following problems: [0004] 1. In order to make the board work normally, it is necessary to manually load the program to the logic chip before the board is powered on for the first time, but at this time the signal of the main board chip (CPU) will interfere with the manual loading. In this regard, the solution in the prior art is to add a jumper between t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
CPCG06F8/654
Inventor 刘世银
Owner XIAN UNIVIEW INFORMATION TECH CO LTD
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