RP2040 assembly language programming ARM Cortex-M0+ on the Raspberry Pi Pico
"Learn to program the Raspberry Pi Pico's dual ARM Cortex M0+ CPUs in Assembly Language. The Pico contains a customer System on a Chip (SoC) called the RP2040, making it the Foundation's first entry into the low-cost microcontroller market. The RP2040 contains a wealth of coprocessors...
| Otros Autores: | |
|---|---|
| Formato: | Libro electrónico |
| Idioma: | Inglés |
| Publicado: |
New York :
Apress
[2022]
|
| Materias: | |
| Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009635712406719 |
Tabla de Contenidos:
- Intro
- Table of Contents
- About the Author
- About the Technical Reviewer
- Acknowledgments
- Introduction
- Chapter 1: How to Set Up the Development Environment
- About the Raspberry Pi Pico
- About the Host Computer
- How to Solder and Wire
- How to Install Software
- A Simple Program to Ensure Things Are Working
- Create Some Helper Script Files
- Summary
- Chapter 2: Our First Assembly Language Program
- 10 Reasons to Use Assembly Language
- Computers and Numbers
- ARM Assembly Instructions
- CPU Registers
- ARM Instruction Format
- RP2040 Memory
- About the GCC Assembler
- Hello World
- Our First Assembly Language File
- About the Starting Comment
- Where to Start
- Assembly Instructions
- Data
- Program Logic
- Reverse Engineering Our Program
- Summary
- Exercises
- Chapter 3: How to Build and Debug Programs
- CMake
- GNU Make
- Print Statements
- GDB
- Preparing to Debug
- Beginning GDB
- Summary
- Exercises
- Chapter 4: How to Load and Add
- About Negative Numbers
- About Two's Complement
- About Raspberry Pi OS Calculator
- About One's Complement
- Big- vs. Little-Endian
- About Bi-Endian
- Pros of Little-Endian
- Cons of Little-Endian
- How to Shift and Rotate Registers
- About Carry Flag
- Basics of Shifting and Rotating
- Logical Shift Left
- Logical Shift Right
- Arithmetic Shift Right
- Rotate Right
- Rotate Right Extend
- How to Use MOV
- Move Immediate
- Moving Data from One Register to Another Using Register MOV
- ADD/ADC
- Add with Carry
- SUB/SBC
- Shifting and Rotating
- Loading All 32 Bits of a Register
- MOV/ADD/Shift Example
- Summary
- Exercises
- Chapter 5: How to Control Program Flow
- Unconditional Branch
- About the CPSR
- Branch on Condition
- About the CMP Instruction
- Loops
- FOR Loops
- While Loops
- If/Then/Else
- Logical Operators.
- AND
- EOR
- ORR
- BIC
- MVN
- TST
- Design Patterns
- Converting Integers to ASCII
- Using Expressions in Immediate Constants
- Storing a Register to Memory
- Why Not Print in Decimal?
- Performance of Branch Instructions
- Summary
- Exercises
- Chapter 6: Thanks for the Memories
- How to Define Memory Contents
- How to Align Data
- How to Load a Register
- How to Load a Register with an Address
- How to Build the Address Directly
- PC Relative Addressing
- How to Load Data from Memory
- Optimizing Small Read-Only Data Access
- Indexing Through Memory
- How to Store a Register
- How to Convert to Uppercase
- How to Load and Store Multiple Registers
- Summary
- Exercises
- Chapter 7: How to Call Functions and Use the Stack
- About Stacks on the RP2040
- How to Branch with Link
- About Nesting Function Calls
- About Function Parameters and Return Values
- How to Manage the Registers
- Summary of the Function Call Algorithm
- More on the Branch Instructions
- About the X Factor
- Uppercase Revisited
- About Stack Frames
- Stack Frame Example
- How to Define Symbols
- How to Create Macros
- About Include Directive
- How to Define a Macro
- About Labels
- Why Macros?
- Summary
- Exercises
- Chapter 8: Interacting with C and the SDK
- How to Wire Flashing LEDs
- How to Flash LEDs with the SDK
- How to Call Assembly Routines from C
- How to Embed Assembly Code Inside C Code
- Summary
- Exercises
- Chapter 9: How to Program the Built-in Hardware
- About the RP2040 Memory Map
- About C Header Files
- About the Raspberry Pi Pico Pins
- How to Set a Pin Function
- About Hardware Registers and Concurrency
- About Programming the Pads
- How to Initialize SIO
- How to Turn a Pin On/Off
- The Complete Program
- Summary
- Exercises
- Chapter 10: How to Initialize and Interact with Programmable I/O.
- About PIO Architecture
- About the PIO Instructions
- Flashing the LEDs with PIO
- PIO Instruction Details and Examples
- JMP
- WAIT
- IN
- OUT
- PUSH
- PULL
- MOV
- IRQ
- SET
- About Controlling Timing
- About the Clock Divider
- About the Delay Operand
- About Side-Set
- More Configurable Options
- Summary
- Exercises
- Chapter 11: How to Set and Catch Interrupts
- Overview of the RP2040's Interrupts
- About the RP2040's Interrupts
- About the Interrupt Vector Table
- About Saving Processor State
- About Interrupt Priorities
- Flashing LEDs with Timer Interrupts
- About the RP2040 Alarm Timer
- Setting the Interrupt Handler and Enabling IRQ0
- The Complete Program
- About the SVCall Interrupt
- Using the SDK
- Summary
- Exercises
- Chapter 12: Multiplication, Division, and Floating Point
- Multiplication
- Division
- About Division and Interrupts
- Interpolation
- Adding an Array of Integers
- Interpolating Between Numbers
- Floating Point
- About the Structure of the Boot ROM
- Sample Floating-Point Program
- Some Notes on C and printf
- Summary
- Exercises
- Chapter 13: Multiprocessing
- About Saving Power
- About Interprocessor Mailboxes
- How to Run Code on the Second CPU
- A Multiprocessing Example
- About Fibonacci Numbers
- About Factorials
- The Complete Program
- About Spinlocks
- Regulating Access to a Memory Table
- A Word on the SDK
- Summary
- Exercises
- Chapter 14: How to Connect Pico to IoT
- About the RP2040's Built-in Temperature Sensor
- About Home-Brewed Communication Protocol
- About the Server Side of the Protocol
- About the RP2040's UART
- Mastering Math Routines
- Viewing the Main Program
- About IoT, Wi-Fi, Bluetooth, and Serial Communications
- Summary
- Exercises
- Appendix A: ASCII Character Set
- Appendix B: Assembler Directives
- Appendix C: Binary Formats
- Integers
- Floating Point
- Addresses
- Appendix D: The ARM Instruction Set
- Answers to Exercises
- Chapter 2
- Chapter 4
- Chapter 6
- Chapter 9
- Chapter 10
- Index.
