Timing Controller I2C Address Matching for Voltage Stability
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Solution Overview
Problem
The existing connection method between the timing controller and gamma chip via an I2C bus can cause the timing controller to be mistakenly triggered, leading to increased workload and unstable output voltage, affecting the display performance.
Innovation Solution
A method and apparatus for controlling the timing controller that involves acquiring bus addresses, determining matching addresses, and using switch control data to selectively activate function circuits, thereby preventing incorrect operation and voltage fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the timing controller and gamma chip are connected via an I2C bus for convenient read operations, then the ease of operation is improved, but the timing controller may be mistakenly triggered causing increased workload and voltage fluctuation
Solution Approach 1:
The timing controller is divided into multiple independent function circuits (first function circuit, second function circuit, etc.), each with its own switch control mechanism. This segmentation allows selective activation of only the required function circuit based on the I2C bus address, preventing unintended triggering of other circuits while maintaining I2C connectivity convenience.
Solution Approach 2:
A switch control signal mechanism is introduced as an intermediary between the I2C bus and the function circuits. The processor receives I2C commands, determines the target function circuit based on address matching, and activates it through a controlled switch. This intermediary prevents direct triggering of all function circuits while maintaining I2C operational convenience.
2Adaptability or versatility
If all function circuits inside the timing controller are activated simultaneously when a signal is received on the I2C bus, then the adaptability is improved, but the output voltage fluctuates abnormally due to increased workload
Solution Approach 1:
The system dynamically adjusts which function circuits are activated based on the specific I2C bus signal received. Instead of a static all-or-nothing activation approach, the processor dynamically determines the target function circuit through address matching and activates only that specific circuit, maintaining system adaptability while controlling power consumption and voltage stability.
Solution Approach 2:
Different function circuits are activated based on the local requirement indicated by the I2C bus address. The switch control mechanism enables selective activation of only the specific function circuit that corresponds to the received address, rather than uniformly activating all circuits. This local quality approach ensures adaptability to specific operations while maintaining voltage stability.
Data Source
AI summary
The present disclosure relates to a method for controlling a timing controller and a timing controller. The method for controlling the timing controller includes: acquiring a bus address in a bus signal transmitted over an I2C bus, the I2C bus being connected to the timing controller; if the timing controller determining that the bus address matches an address of the timing controller, acquiring data information in the bus signal; acquiring an address of a target function circuit according to the data information; generating and transmitting a query instruction to a memory according to the address of the target function circuit, and receiving switch control data corresponding to the target function circuit fed back by the memory; controlling, according to the switch control data, a switch connected to the target function circuit to be turned on.