Insurrection

British Library | Engilsh | PDF | RAR Size : 4.3 MB

Introduction

The first step in almost every rehabilitation program is A- Acknowledge . . . your limitations. So this is how I need to start this book, I will admit it: I am an 8-bitter ! I have been programming 8-bit microcontrollers since I was in high school and for most of my professional career. And there is worse, while I am relatively fluent in several high level programming languages, I truly love assembly programming! There, I said it! I love that kick that I get when I know I used every single machine cycle in every microsecond my embedded applications run. I am also obsessed with control: I like to know of every configuration bit in every peripheral I use. As a consequence, in general, I don ’ t trust compilers or other people ’ s libraries unless I really cannot live without them or I have them completely disassembled. So why would I write a book about 32-bit programming in C? In fact I started what I should call my “ rehabilitation program ” a couple of years ago by approaching the programming of 16-bit
microontrollers first. The introduction of the PIC24 family of microcontrollers gave me the motivation to try and migrate to C programming with a new and exciting architecture. As a result of my experience, I wrote the first book: “ Programming 16-bit microcontrollers in C. Learning to fly the PIC24 ” . But by the time the book was published, rumors circulated in Microchip that a new 32-bit chip had just come out of the “ ovens ” and I had to have one! I ’ ll spare you the details of how I got my hands around one of the very first test chips, but what you need to know is that in a matter of days I had most of the code, originally developed for the PIC24 book, ported and running on the PIC32 plugged in my old Explorer16 board.
Microchip marketing folks will tell you that the PIC32 architecture was specifically designed so to make the “ migration ” from 8-bit and 16-bit PIC architectures smooth and seamless, but I had to see it with my eyes to believe it. So who better than an assembly-loving, control-obsessed, 8-bitter can tell you about the exploration of the PIC32? Who Should Read this Book?

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