Algorithm analysis of MCU automatic trimming

Abstract

Due to the influence of craftsmanship and other issues, the MCU analog signal output will have a certain deviation, so in the design, trimming circuits will be reserved in the circuit, and these trimming circuits are controlled by registers. In order to quickly and accurately complete the MCU trimming work, an automatic trimming algorithm is used to trim an MCU chip. Improve the automatic trimming algorithm through several modules for MCU trimming, making the automatic trimming algorithm more accurate or complete faster. Applying the improved algorithm to an MCU chip, it is verified that the improved algorithm performance is significantly better.