RISC-V’s Challenge to ARM in the Simplified Instruction Set Arena

RISC-V's Challenge to ARM in the Simplified Instruction Set Arena

Source: Eefocus Original Author: Liu Haoran Introduction ✦ The main gap between RISC-V and ARM currently lies in the upstream and downstream industrial ecosystem and large-scale applications, which is the biggest challenge and difficulty facing the players in the RISC-V camp. ✦ ✦ We command computers to work, and we cannot simply say to the … Read more

Reviewing Snapdragon 820: Why Qualcomm Abandoned Self-Developed Mobile CPUs?

Reviewing Snapdragon 820: Why Qualcomm Abandoned Self-Developed Mobile CPUs?

The EE History Class series has not been opened for a long time. Recently, Chips and Cheese updated their tests on the Snapdragon 820: we had also planned to trace back the topic of Snapdragon 820 mobile chip articles two years ago, but we had to shelve it due to the lack of satisfactory materials. … Read more

Understanding ARM Cortex-M7 Cache: Basics and Principles

Understanding ARM Cortex-M7 Cache: Basics and Principles

Summary Introduction 1. Why introduce cache in CPU architecture? 2. The role of cache 3. Memory system of ARM Cortex-M4 / Cortex-M7 CPU architecture 4. Detailed explanation of basic concepts related to cache Conclusion Introduction For many years, most embedded MCUs based on RISC CPU (like 8051 core, PIC core, and ARM Cortex M0/M0+ and … Read more