热图读取方法及设备、雷达、存储介质

By determining the memory address in the AHB bus and directly accessing the micromemory or accessing the heatmap memory via an asynchronous bridge, the low efficiency of the AHB bus is solved, heatmap reading efficiency is improved, and costs are reduced.

CN122219859BActive Publication Date: 2026-07-17POSSUMIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
POSSUMIC TECH CO LTD
Filing Date
2026-05-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, direct access to the heatmap memory via the AHB bus cannot meet the timing requirements of high-speed circuits, resulting in limited read speed. Furthermore, the bus efficiency decreases by 30% to 50% after inserting an asynchronous bridge, affecting the heatmap read efficiency.

Method used

By determining whether the storage address belongs to the micro memory, if it does, AHB directly accesses the micro memory to read the heatmap data; otherwise, it accesses the heatmap memory through the asynchronous bridge and stores the remaining data in the micro memory, thus reducing the number of accesses by the asynchronous bridge.

Benefits of technology

It improves bus and heatmap reading efficiency, reduces the number of asynchronous bridge accesses, simplifies circuit design, and reduces costs.

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Abstract

本申请提出一种热图读取方法及设备、雷达、存储介质。该方法包括:S1、从读指令解析基地址和一存储地址,基地址和存储地址的字节总位数等于AHB的位宽;S2、判断存储地址是否属于微存储器;若是,则执行S3、根据存储地址从微存储器读取热图数据组对应的一热图元素,并上报;以及,重复执行S1及S3,直至从微存储器读取热图数据组的最后一个热图元素,并上报;若否,则执行S4、通过异步桥从热图存储器读取热图数据组,将首个热图元素依次通过异步桥和AHB上报、剩余热图元素存储于微存储器;以及,重复执行S1及S3,直至从微存储器读取其最后一个热图元素并上报。基于此,本申请可以减少异步桥的访问次数,提升读取效率。
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