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Off-line copy method for E2PROM

A copy method and off-line technology, which is applied in the field of E2PROM off-line copy, to achieve the effects of simple operation, improved quality, and reduced input costs

Active Publication Date: 2011-03-30
INESA ELECTRON
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0003]The present invention is to overcome the existing traditional E2PROM chip data replication complex, low efficiency, easy damage in the process of copying the jig Due to the problem, an E2PROM off-line copy method is proposed, which can complete the copy work of E2PROM without the computer, thus reducing the cost of data writing. The data is accurate and the copying process is easy to learn

Method used

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  • Off-line copy method for E2PROM
  • Off-line copy method for E2PROM

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Embodiment Construction

[0016] As shown in Figure 1, in this method mainly for I 2 The data writing (replication) of the memory of C bus, by single-chip microcomputer 3 will pre-write the mother chip (E 2 The data in PROM)2 is copied to the written memory (E 2 PROM)4, and can be copied multiple times.

[0017] Copy the data to be used to the memory of the same capacity through the computer 1 in advance. We call the memory the master chip 2. This process is the master chip production process, and then insert the master chip 2 into the jig, and pass the microcontroller in the jig 3 Control the copying of the data. First, the single-chip microcomputer 3 starts to copy the written piece 4 according to the instruction of the control operation 5. After the copy is completed, it automatically enters the data verification process, and compares the data in the master piece 2 with the written piece 4. Compared with the data, the verification result of the single-chip microcomputer 3 will be displayed in the ...

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Abstract

The invention relates to an E<2>PROM offline copy method, comprising: writing data, calibrating data and judging error. The method uses a single chip to copy the data written in a parent chip (E<2>PROM) into an object memory (E<2>PROM) via a device, while the copy processes can be repeated, the method can judge and calibrate the correctness of copied data, the method simplifies operation, reduces the damage in data input, improves the quality of circuit board, improves production yield and reduces device investment.

Description

technical field [0001] The invention relates to a chip data duplication method, in particular to an E 2 PROM offline copy method. Background technique [0002] The traditional EEPROM chip can only use the computer and communication BOX to input data from the port of the substrate after the actual assembly is completed. This method has many disadvantages: 1) The operation of the operator is complicated, requiring each wire harness to be inserted into the port. Correctness, each substrate must have the action of inserting and unplugging the wire harness. Due to the large number of actions, it affects the production yield; 2) Because each insertion will cause damage to the port on the circuit board, and if the insertion or removal of the wire harness Improper pulling out will cause an internal short circuit in the wiring harness and damage the components on the circuit board after power-on; 3) It will also have a certain impact on the quality of the circuit board. Content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C16/10G11C29/08
Inventor 周红卫
Owner INESA ELECTRON
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