Timing Controller Code Verification for PCB Memory
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Solution Overview
Problem
Conventional code checking methods for printed circuit boards require a computer and fixtures, increasing work time and labor costs due to the need for manual, one-by-one operations and potentially unstable results.
Innovation Solution
A code checking method where a timing controller with a weighting comparison module reads and calculates the checksum of primary code data, compares it with a check code added to the end of the data, and outputs a testing signal via a testing pin for immediate verification using a probe, eliminating the need for computer software operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional code checking method using computer and fixtures is used, then code verification can be performed, but work time increases and labor costs increase
Solution Approach 1:
The timing controller performs code checking autonomously using its built-in weighting comparison module, eliminating the need for external computer systems and fixtures. The controller reads code data from memory, calculates checksums, and compares them with stored reference values automatically, enabling the system to verify its own code integrity without human intervention or additional equipment.
Solution Approach 2:
The code checking function is extracted from the external computer-based system and integrated directly into the timing controller's internal architecture. By embedding the weighting comparison module within the controller, the patent removes the dependency on external fixtures and software, streamlining the verification process to occur entirely within the device itself.
2Reliability
If conventional code checking method using computer and fixtures is used, then code verification can be performed, but device complexity increases
Solution Approach 1:
The patent merges the code checking functionality with the timing controller's existing architecture by integrating a weighting comparison module directly into the controller. This consolidation eliminates the need for separate computer systems, fixtures, and external software, reducing overall system complexity while maintaining verification capabilities within a single integrated device.
3Reliability
If conventional code checking method using fixtures and software is used, then code verification can be performed, but checking stability is affected by fixture and software stability
Solution Approach 1:
The timing controller autonomously performs code verification using its internal weighting comparison module, eliminating dependency on external fixtures and software systems. This self-contained approach ensures that checking stability is determined solely by the controller's internal components, which are designed for long-term reliability and consistent performance.
Data Source
AI summary
A code checking method for a memory of a printed circuit board is disclosed, and is used to firstly add a check code to a data end of codes, after the codes is written in a memory, then use a timing controller to calculate a checksum of the data of the part of the primary codes and further compare the calculated checksum with the check code, and then output to a probe via a testing pin to display the result of comparison, so as to accomplish an object of checking if the written codes are correct. Thus, work efficiency of checking the codes written in the memory is enhanced.