Texas Instruments Serial Programming Adapter MSP430 User manual

MSP430 Workshop
STUDENT GUIDE
MSP430 Workshop
Revision 3.02a
January 2014

Important Notice
Important Notice
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or
to discontinue any product or service without notice, and advise customers to obtain the latest
version of relevant information to verify, before placing orders, that information being relied on is
current and complete. All products are sold subject to the terms and conditions of sale supplied at
the time of order acknowledgment, including those pertaining to warranty, patent infringement,
and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time
of sale in accordance with TI’s standard warranty. Testing and other quality control techniques
are utilized to the extent TI deems necessary to support this warranty. Specific testing of all
parameters of each device is not necessarily performed, except those mandated by government
requirements.
Customers are responsible for their applications using TI components.
In order to minimize risks associated with the customer’s applications, adequate design and
operating safeguards must be provided by the customer to minimize inherent or procedural
hazards.
TI assumes no liability for applications assistance or customer product design. TI does not
warrant or represent that any license, either express or implied, is granted under any patent right,
copyright, mask work right, or other intellectual property right of TI covering or relating to any
combination, machine, or process in which such semiconductor products or services might be or
are used. TI’s publication of information regarding any third party’s products or services does not
constitute TI’s approval, warranty or endorsement thereof.
Copyright 2013 Texas Instruments Incorporated
Revision History
July 2013 – Revision 2.22 (based on MSP430G2553 Value-Line Launchpad)
October 2013 – Revision 3.0 (based on MSP430F5529 USB Launchpad)
November 2013 – Revision 3.01
January 2014 – Revision 3.02
Mailing Address
Texas Instruments
Training Technical Organization
6500 Chase Oaks Blvd Building 2
M/S 8437
Plano, Texas 75023
ii MSP430 Workshop - Introduction

Introduction to MSP430
Introduction
Welcome to the MSP430 Workshop. This workshop covers the fundamental skills needed when
designing a system based on the Texas Instruments (TI) MSP430™ microcontroller (MCU). This
workshop utilizes TI’s integrated development environment (IDE) which is named Code
Composer Studio™ (CCS). It will also introduce you to many of the libraries provided by TI for
rapid development of microcontroller projects, such as MSP430ware™.
Whether you are a fan of the MSP430 for its low-power DNA, appreciate its simple RISC-like
approach to processing, or are just trying to keep your system’s cost to a minimum … we hope
you’ll enjoy working through this material as you learn how to use this nifty little MCU.
MSP430 Workshop - Introduction to MSP430 1 - 1

Administrative Topics
Chapter Topics
Introduction to MSP430..............................................................................................................1-1
Administrative Topics................................................................................................................1-3
Workshop Agenda.....................................................................................................................1-4
TI Products................................................................................................................................1-6
TI’s Entire Portfolio................................................................................................................1-6
Wireless Products.................................................................................................................1-7
TI's Embedded Processors.......................................................................................................1-8
MSP430 Family.......................................................................................................................1-10
MSP430 CPU..........................................................................................................................1-13
MSP430 Memory ....................................................................................................................1-17
Memory Map.......................................................................................................................1-17
RAM ....................................................................................................................................1-18
TLV......................................................................................................................................1-18
FRAM..................................................................................................................................1-19
MSP430 Peripherals...............................................................................................................1-22
GPIO ...................................................................................................................................1-22
Timers .................................................................................................................................1-23
Clocking and Power Management......................................................................................1-24
Analog.................................................................................................................................1-25
Communications (Serial ports, USB, Radio).......................................................................1-26
Hardware Accelerators........................................................................................................1-27
Summary.............................................................................................................................1-28
ULP .........................................................................................................................................1-29
Profile Your Activities..........................................................................................................1-30
Launchpad’s............................................................................................................................1-34
Lab 1 – Out-of-Box User Experience Lab...............................................................................1-35
1 - 2 MSP430 Workshop - Introduction to MSP430

Administrative Topics
Administrative Topics
A few important details, if you’re taking the class live. If not, we hope you already know where
your own bathroom is located.
MSP430 Workshop - Introduction to MSP430 1 - 3

Workshop Agenda
Workshop Agenda
Here’s the outline of chapters in this workshop.
Chapter 1: “Intro” Provides a quick introduction to TI, TI’s Embedded Processors, as well
as the MSP430 Family of devices.
Chapter 2: “CCS” introduces TI’s development ecosystem. This includes:
−Code Composer Studio (CCSv5)
−Target software, such as MSP430ware and TI-RTOS
−TI’s support infrastructure, including the embedded processors wiki and
Engineer-to-Engineer (e2e) forums.
Chapter 3: “GPIO” This is our introduction to programming with MSP430ware; specifically,
the DriverLib (i.e. driver library) part of MSP430ware. We start out by using it
to program GPIO to blink an LED (often called the “embedded systems version
of ‘Hello World’”). The second part of the lab reads a Launchpad pushbutton.
Chapter 4: “Clocks” This chapter starts at reset – in fact, all three resets found on the
MSP430. We then progress to examining the rich and robust clocking options
provided in the MSP430. This is followed by the power management features
found on many of the ‘430 devices. The chapter finishes up by reviewing the
other required system initialization tasks … such as configuring (or turning off)
the watchdog timer peripheral.
1 - 4 MSP430 Workshop - Introduction to MSP430

Workshop Agenda
Chapter 5: Interrupts … do you use interrupts? Yep, they’re one of the most fundamental
parts of embedded system designs. This is especially true when your
processor is known as the king of low-power. We examine the sources, how to
enable, and what to do in response to … interrupts.
Chapter 6: Timers are often thought of as the lifeblood of a microcontroller program. We
use them to generate periodic events, as one-shot delays, or just to wake
ourselves up every once in a while to read a sensor value. This chapter
focuses on Timer_A – the primary timer module found in the MSP430.
Chapter 7: USB – Universal Serial Bus is an ideal way to communicate with host
computers. This is especially true as most PC’s have done away with
dedicated serial and parallel ports. We attempt to explain how USB works as
well as how to build an application around it. What you’ll find is that the
MSP430 team has done an excellent job of making USB simple.
Chapter 8: Energia is also known by the name “Arduino”. Energia was the name given to
Arduino as it was ported to the TI MCU’s by the open-source community. Look
up the definition of Energia – and let it ‘propel’ your application right off the
Launchpad.
MSP430 Workshop - Introduction to MSP430 1 - 5

TI Products
TI Products
TI’s Entire Portfolio
It’s very difficult to summarize the entire breadth of TI’s semiconductor products – it’s so far
reaching. But, maybe that’s not to be unexpected from the company who invented the integrated
circuit.
Whether you are looking for embedded processors (the heart of following diagram) or all the
components that sit alongside – such as power management, standard logic, op amps, data
conversion, display drivers, or … so much more – you’ll find them at TI.
Before taking a closer look at embedded processors, we’ll glance at one of the hottest growing
product categories … TI’s extensive portfolio of wireless connectivity.
1 - 6 MSP430 Workshop - Introduction to MSP430

TI Products
Wireless Products
Wireless devices let us talk through the air. Look ma, no wires.
What protocol or frequency resonates with you and your end-customers? Whether it’s: near-field
communications (NFC); radio-frequency ID (RFID); the long range, low-power sub 1-GHz;
ZigBee®; 6LoPan; Bluetooth® or Bluetooth Low Energy® (BLE); ANT®; or just good old Wi-Fi –
TI’s got you covered.
Many low-end, low-cost MCU designers have longed for a way to connect wirelessly to the rest of
the world. TI’s wireless devices and modules make this possible. No longer do you need a
gigahertz processor to run the various networking stacks required to talk to the outside world –
the TI SimpleLink line handles this for you … meaning that any processor that can communicate
via a serial port can be networked. Drop a CC3000 module into your design and you’ve enabled it
to join the Internet of Things revolution.
Check out TI’s inexpensive, low-power and innovative wireless lineup!
MSP430 Workshop - Introduction to MSP430 1 - 7

TI's Embedded Processors
TI's Embedded Processors
Whether you are looking for the MSP430, which is the lowest power microcontroller (MCU) in the
world today … or the some of the highest performance single-chip microprocessors (MPU) ever
designed (check out Multicore) … or something in between … TI has your needs covered.
To start with, look at the Blue/Red row about ⅓the way down the slide. The columns with Red
signify devices utilizing ARM processor cores. If you didn’t think TI embraces the ARM lineup of
processors, think again. TI is one of the leaders in ARM development, manufacturing and sales.
Jumping to the 3rd column, the Tiva C (Tiva Connected) processors are probably the best all-
around MCU’s in use today. The 32-bit floating point ARM Cortex-M4F core can be connected to
the real-world by a dizzying array of peripherals. They provide a near-perfect balance of
performance, power, and connectivity.
On the other hand, if you’re building safety critical applications, the Hercules family of processors
is what you should key in on. Whether your customers appreciate the safety of dual-core,
lockstep processing or the SIL3 certification, these processors are a unique mix of ARM Cortex-
R4 performance combined with TI’s vast SafeTI®knowledge.
Moving up to what ARM calls their ‘Application’ series of processors, TI set the processing world
on fire (figuratively) when they introduced the Sitara AM335x. That you could get a $5 processor
which runs Linux, Android or other high-level operating systems was jaw-dropping. We probably
didn’t make some PC manufactures happy – we’ve seen many of our customers replace bulky,
power-hungry embedded PC’s with small, low-power BeagleBoard-like replacements. This device
was the inflection point – it’s started a new direction for embedding high-level host systems.
1 - 8 MSP430 Workshop - Introduction to MSP430