Texas Instruments LaunchPad MSP-EXP430F5529LP User manual

MSP-EXP430F5529LP LaunchPad™
Development Kit
User's Guide
Literature Number: SLAU533B
September 2013–Revised June 2014

Contents
1 Getting Started .................................................................................................................... 5
1.1 Key Features.............................................................................................................. 6
1.2 Kit Contents............................................................................................................... 6
1.3 Out-of-Box Experience .................................................................................................. 6
2 Hardware........................................................................................................................... 11
2.1 Block Diagram........................................................................................................... 12
2.2 Hardware Features..................................................................................................... 13
2.3 Measure MSP430 Current Draw...................................................................................... 20
2.4 Using an External Power Source..................................................................................... 21
2.5 Using the eZ-FET lite Emulator With a Different Target........................................................... 25
2.6 USB BSL Button ........................................................................................................ 25
2.7 BoosterPack Pinout .................................................................................................... 27
2.8 Design Files ............................................................................................................ 29
2.9 Hardware Change Log................................................................................................. 29
3 Software Examples............................................................................................................. 30
3.1 MSP430 Software Libraries: driverlib and the USB API........................................................... 30
3.2 Viewing the Code....................................................................................................... 30
3.3 Example Project Software Organization............................................................................. 32
3.4 USB Configuration Files ............................................................................................... 33
3.5 Out-of-Box Experience: emulStorageKeyboard .................................................................... 34
3.6 Example: simpleUsbBackchannel.................................................................................... 40
3.7 Starting Device Manager .............................................................................................. 48
4 Additional Resources.......................................................................................................... 50
4.1 LaunchPad Websites................................................................................................... 50
4.2 Information on the MSP430F5529.................................................................................... 50
4.3 Download CCS, IAR, mspgcc, or Energia........................................................................... 50
4.4 USB Developers Package............................................................................................. 50
4.5 MSP430Ware and TI Resource Explorer............................................................................ 51
4.6 F5529 Code Examples................................................................................................. 53
4.7 MSP430 Application Notes............................................................................................ 53
4.8 TI E2E Community ..................................................................................................... 53
4.9 Community at Large.................................................................................................... 54
5 FAQs ................................................................................................................................ 54
6 Schematics........................................................................................................................ 56
Revision History.......................................................................................................................... 60
2Table of Contents SLAU533B–September 2013–Revised June 2014
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List of Figures
1 MSP430F5529 LaunchPad................................................................................................. 5
2 Jumper Requirements Necessary for Software Demo.................................................................. 7
3 Storage Volume, Mounted from the MSC Interface..................................................................... 8
4 Files on the Storage Volume............................................................................................... 8
5 Default Text Typed From Button S1....................................................................................... 9
6 ASCII-Art LaunchPad Rocket, Typed from Button S2 .................................................................. 9
7 EVM Features and Controls .............................................................................................. 11
8 Block Diagram .............................................................................................................. 12
9 MSP430F5529 Pinout ..................................................................................................... 13
10 eZ-FET lite Emulator....................................................................................................... 14
11 On-Board USB Bus Path.................................................................................................. 15
12 F5529 LaunchPad USB Interfaces....................................................................................... 16
13 F5529 LaunchPad Power Supply ........................................................................................ 16
14 Backchannel UART Pathway............................................................................................. 18
15 Application Backchannel UART in Device Manager................................................................... 18
16 Isolation Jumper Block..................................................................................................... 19
17 Power Block Diagram for Default Configuration With USB Power Only ............................................ 21
18 Power Block Diagram for External 3.3-V Power Source.............................................................. 22
19 Power Block Diagram for External 5-V Power Source Without USB Connection ................................. 23
20 Power Block Diagram for External 5-V Power Source With USB Connection ..................................... 24
21 USB BSL Button............................................................................................................ 25
22 Identifying the USB BSL's HID Interface in Device Manager......................................................... 26
23 F5529 LaunchPad to BoosterPack Connector Pinout................................................................. 28
24 Browse to Demo Project for Import Function........................................................................... 31
25 When CCS Has Found the Project ...................................................................................... 31
26 F5529 LaunchPad Demo Software Organization ...................................................................... 32
27 MSP430 USB Descriptor Tool............................................................................................ 33
28 Demo Program Flow....................................................................................................... 34
29 Disable the Watchdog in Pre-Initialization .............................................................................. 35
30 Waking From LPM0........................................................................................................ 37
31 Movement of Data in simpleUsbBackchannel: CDC .................................................................. 41
32 simpleUsbBackchannel's USB Virtual COM Port, Needing a Driver ................................................ 42
33 Device Manager After Both Ports are Enumerated.................................................................... 43
34 Movement of Data in simpleUsbBackchannel: HID-Datapipe........................................................ 48
35 Start Device Manager...................................................................................................... 48
36 Device Manager............................................................................................................ 49
37 F5529 LaunchPad With DLP-7970ABP NFC BoosterPack........................................................... 50
38 USB Examples in the USB Developers Package...................................................................... 52
39 TI Resource Explorer: Create a New USB Project Wizard ........................................................... 53
40 Schematics (1 of 4) ........................................................................................................ 56
41 Schematics (2 of 4) ........................................................................................................ 57
42 Schematics (3 of 4) ........................................................................................................ 58
43 Schematics (4 of 4) ........................................................................................................ 59
3
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List of Tables
1 Files on the Storage Volume............................................................................................... 8
2 eZ-FET lite LED Feedback Behavior .................................................................................... 15
3 Isolation Block Connections............................................................................................... 19
4 Hardware Change Log..................................................................................................... 29
5 Software Examples ........................................................................................................ 30
6 Demo Project File and Directory Descriptions.......................................................................... 32
7 Backchannel Library: Constants to Configure.......................................................................... 44
8 Backchannel Library: Functions.......................................................................................... 44
9 Clock Settings .............................................................................................................. 45
10 How MSP430 Device Documentation is Organized ................................................................... 50
4List of Tables SLAU533B–September 2013–Revised June 2014
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User's Guide
SLAU533B–September 2013–Revised June 2014
MSP-EXP430F5529LP LaunchPad™ Development Kit
User's Guide
1 Getting Started
The MSP430 LaunchPad™ Development Kit now has USB! The MSP-EXP430F5529LP (or the "F5529
LaunchPad") is an inexpensive and simple development kit for the MSP430F5529 USB microcontroller. It
offers an easy way to start developing on the MSP430, with on-board emulation for programming and
debugging as well as buttons and LEDs for a simple user interface.
Figure 1. MSP430F5529 LaunchPad
Rapid prototyping is simplified by the 40-pin BoosterPack™ plug-in module headers, which support a wide
range of available BoosterPacks. You can quickly add features like wireless connectivity, graphical
displays, environmental sensing, and much more. You can either design your own BoosterPack or choose
among many already available from TI and third-party developers.
LaunchPad, BoosterPack, Code Composer Studio are trademarks of Texas Instruments.
IAR Embedded Workbench is a trademark of IAR Systems.
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The MSP430F5529 16-bit MCU has 128KB flash memory, 8KB RAM, 25-MHz CPU speed, integrated
USB, and many peripherals – plenty to get you started in your development.
Custom USB functionality can be quickly added using the free open-source USB tools and examples
available in the MSP430 USB Developers Package. This includes the MSP430 USB Descriptor Tool,
which quickly customizes any combination of USB interfaces and automatically generates your USB
descriptors for those interfaces.
Free software development tools are also available - TI's Eclipse-based Code Composer Studio™ IDE
(CCS) and IAR Embedded Workbench™ IDE (IAR), and the community-driven Energia open-source code
editor. More information about the LaunchPad including documentation and design files can be found on
the tool page at www.ti.com/tool/msp-exp430f5529lp.
1.1 Key Features
• USB-enabled MSP430F5529 16-bit MCU
– Up to 25-MHz System Clock
– 1.8-V to 3.6-V operation
– 128KB of flash, 8KB of RAM
– Five timers
– Up to four serial interfaces (SPI, UART, I2C)
– 12-bit analog-to-digital converter
– Analog comparator
– Integrated USB, with a complete set of USB tools, libraries, examples, and reference guides
• The eZ-FET lite emulator, with the application ("backchannel") UART. (Now open-source!)
• Ability to emulate and develop USB applications with a single USB cable, made possible with an on-
board USB hub
• Power sourced from the USB host. The 5-V bus power is reduced to 3.3 V, using an on-board dc-dc
converter.
• Both male and female 40-pin BoosterPack headers, configured for stacking. 20-pin BoosterPacks can
also be attached.
• Compatible with the 40-pin LaunchPad BoosterPack™ development tool standard.
1.2 Kit Contents
(1) MSP-EXP430F5529LP LaunchPad development tool
(1) USB cable with "micro" connectors
(1) Quick start guide
If you intend to write code for the F5529 LaunchPad, you can complete the kit by downloading the
hardware design files (SLAR090) and software examples (SLAC623) from the MSP-EXP430F5529LP tool
page.
1.3 Out-of-Box Experience
The F5529 LaunchPad comes programmed with an out-of-box demonstration example. Let's get started!
This section only describes how to use the demo. More details about the F5529 LaunchPad are given
later.
The demo works on a Windows PC, Linux PC, or Mac. It requires that (at minimum) the power jumpers
(3.3 V and 5 V) on the isolation jumper block be connected. These supply power to the target F5529
device. As shipped from TI, these jumpers are connected.
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Figure 2. Jumper Requirements Necessary for Software Demo
Step 1: Install a Software Development Platform
The development platform can be Code Composer Studio IDE (CCS), IAR Embedded Workbench IDE
(IAR), mspgcc, or Energia open-source platform. See Section 3.2 for help choosing a platform.
The out-of-box demo works without this step, but the host reports that the integrated eZ-FET lite emulator
did not enumerate.
(Be aware that the USB API does not yet fully support mspgcc development, but mspgcc does contain the
eZ-FET drivers.)
Step 2: Connect the Hardware
Connect the LaunchPad to a host PC using the USB cable included with the LaunchPad. The demo
should work on any recent version of these operating systems. If prompted, let the PC automatically install
software. The install is "silent", which means that the PC's operating system already has the drivers it
needs.
When you connect a USB device to your computer, the computer goes through the enumeration process.
During enumeration, the host asks for the device's USB descriptors to learn the device's identity,
capabilities, and more. Using the descriptors, the device presents one or more USB interfaces to the host,
where each interface is associated with either a pre-defined device class, or a custom driver. The major
operating systems already ship with drivers for most common device classes, which is why you do not
need to provide them during installation.
The F5529 LaunchPad software demo presents two USB interfaces to the host:
• A Mass Storage Class (MSC) interface, which results in a storage volume
• A Human Interface Device (HID) interface, which is configured as a keyboard
All major host operating systems already have drivers for these classes.
Note: The eZ-FET emulator, application UART, and USB hub also enumerate when the LaunchPad is
attached. These are part of the LaunchPad emulator, and so they always enumerate on Windows and
Linux PCs, no matter what software is loaded into the MSP430F5529 device. In contrast, the MSC and
HID interfaces described in this section are generated by the software demo application that is loaded
onto the LaunchPad as shipped from TI. See Section 2.2.3 for more information.
Step 3: Verify the storage volume has been loaded
When you attach the LaunchPad to the PC, a storage volume is mounted on the host. This volume can be
seen in "My Computer", with the name "F5529LP":
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Figure 3. Storage Volume, Mounted from the MSC Interface
This storage volume is stored within the MSP430F5529's on-chip flash. It is small compared to most flash
drives, but it is large enough for the demo's needs. The MSP430 software presents it to the host through
the MSC interface.
If you open the volume, you see these files:
Figure 4. Files on the Storage Volume
Table 1 describes the function of these files.
Table 1. Files on the Storage Volume
File Description
Contains the text that will be "typed" by the keyboard interface when button S1 is pressed. By default,
Button1.txt its contents are "Hello World".
Contains the text that will be "typed" by the keyboard interface when button S2 is pressed. By default,
Button2.txt it contains "ASCII art" of the LaunchPad "rocket" logo.
MSP430 USB Opening this file causes your web browser to launch the MSP-EXP430F5529LP LaunchPad web
LaunchPad.url page
README.txt A "readme" file that helps explain how to use these files.
If you place other files inside the volume, they are stored inside MSP430 flash. But keep in mind that the
volume is only approximately 60KB in size. If you later download the software demo (or any software) to
the F5529 target, any data that you have placed in the volume will be lost.
If you change the name of the Button1.txt or Button2.txt file, the pushbutton functionality no longer works.
This is because the MSP430 demo software looks for these files by name.
Step 4: Open a text editor, and press the buttons
In addition to the MSC interface, the other USB interface that is enumerated by the demo is an HID
interface, which is used to emulate a keyboard. When you press the S1 or S2 button, the text stored in the
Button1.txt or Button2.txt file, respectively, is sent to your computer as typed keystrokes.
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To see the keyboard in action, open a text editor. If using Windows, the standard Notepad application is a
good choice. (To open Notepad, click the Start button, then click Run…, type "notepad" in the Open text
box, and click OK.)
Make sure the window focus is on the text editor and not on another application running on the PC. Then
press the S1 button on the LaunchPad to send the text in Figure 5 to Notepad.
Figure 5. Default Text Typed From Button S1
Then delete this text, and press the S2 button on the Launchpad to send the text in Figure 6 to Notepad.
Figure 6. ASCII-Art LaunchPad Rocket, Typed from Button S2
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The rocket can take a few seconds to type out. While the MSP430 is typing this out, be sure not to change
the PC's window focus outside of Notepad. If you change the focus, keystrokes will be sent to whatever
application has focus, and strange things might happen on your PC!
Step 5: Customize the strings
Because the strings typed out by the S1 and S2 buttons originate from the Button1.txt and Button2.txt
files, respectively, you can change these strings. Open these files in a text editor, modify their contents,
and save the files. Then press the corresponding button; your new string is typed out.
Note that there is a 2048-character limit on each string, a limit set within the software. The limit is
necessary because the software reads the files' strings into a RAM buffer before typing, and the size of
this RAM buffer is 2048 bytes.
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