What is memory-mapped I/O in Embedded C? How do you access hardware registers?

What is memory-mapped I/O in Embedded C? How do you access hardware registers?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: medium

标签: interviewbit, c, topic-specific, systems

参考答案摘要

Memory-mapped I/O is a technique where hardware registers are assigned fixed memory addresses. These addresses can be accessed just like normal variables in C. For example: #define PORTB (*(volatile u...

本题提供 STAR 原则详细解答和技术解析，登录匠人学院学习中心即可查看完整答案。