CAJ | 학술논문

数字信号控制器(DSC)具有数字信号处理能力和 MCU 控制接口，其中断系统功能非常丰富，这为应用带来方便，同时也带来设置的复杂性。本文以 MC56F8257为例，详细分析 DSC 中断系统及其设置方法；以 MC56F8257中的 QSCI模块中断及 CAN 模块中断为例，从不带中断优先级、带中断优先级和优先级嵌套三个方面，分析 DSC 中断设置过程及响应结果。分析结果进一步验证 DSC 中断具有优先级及屏蔽等特点，为推广 DSC 芯片的应用提供指导。
수자신호공제기(DSC)구유수자신호처리능력화 MCU 공제접구，기중단계통공능비상봉부，저위응용대래방편，동시야대래설치적복잡성。본문이 MC56F8257위례，상세분석 DSC 중단계통급기설치방법；이 MC56F8257중적 QSCI모괴중단급 CAN 모괴중단위례，종불대중단우선급、대중단우선급화우선급감투삼개방면，분석 DSC 중단설치과정급향응결과。분석결과진일보험증 DSC 중단구유우선급급병폐등특점，위추엄 DSC 심편적응용제공지도。
Digital Signal Controller (DSC)has the ability of digital signal processing and MCU control interface.The interrupt system has many functions,which brings more conveniences for applications and the complexity of settings.Taking MC5 6F8257 as an example,this paper analyzes interrupt system of DSC and its setting methods in detail.Taking the QSCI module interrupt and CAN module interrupt of MC5 6F8257 as an example,the interrupt setting process and its responding results of DSC are analyzed from three aspects including without interrupt priority,with interrupt priority and interrupt nesting.The results prove that the DSC interrupt has priority and mask characteristics,which provides guidance to promote the use of DSC chips.