AVR Memory Part 1: Introduction

摘要

Last month, we put an ATmega644 on a breadboard and I promised that this month we'd transfer the design to a PCB so that we would have an easy-to-use open-source hardware platform to learn with. Unfortunately, I messed up. I had it all working and even tested the PCB with my bootloader. Then it quit working. As the deadline for this article began to stand up and glare at me with tendrils of smoke and occasional puffs of fire directed my way, I did what any sensible person does. I panicked and messed things up even worse. Am I mortified? You betcha! So, the PCB will be delayed and this month we will begin a mini-series on AVR memory architecture with the goal of understanding each type, providing examples on how to use each, and in the final episode we will use what we've learned to write a bootloader in C. Somewhere along the line I should get the BeAVR PCB and associated software working again, and we'll see it then.