Texas Instruments MSP430FR6989 LaunchPad User manual

User's Guide
SLAU627A–May 2015–Revised July 2015
MSP430FR6989 LaunchPad™ Development Kit
(MSP ‑‑ EXP430FR6989)
The MSP-EXP430FR6989 LaunchPad™ Development Kit is an easy-to-use evaluation module (EVM) for
the MSP40FR6989 microcontroller (MCU). It contains everything needed to start developing on the ultra-
low-power MSP430FRx FRAM microcontroller platform, including on-board emulation for programming,
debugging, and energy measurements.
Figure 1. MSP-EXP430FR6989 LaunchPad Development Kit
LaunchPad, BoosterPack, EnergyTrace++, EnergyTrace, E2E are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
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Contents
1 Getting Started............................................................................................................... 3
2 Hardware...................................................................................................................... 5
3 Software Examples ........................................................................................................ 18
4 Resources................................................................................................................... 20
5 FAQs......................................................................................................................... 28
6 Schematics.................................................................................................................. 29
List of Figures
1 MSP-EXP430FR6989 LaunchPad Development Kit.................................................................... 1
2 MSP-EXP430FR6989 Overview........................................................................................... 5
3 MSP-EXP430FR6989 Block Diagram..................................................................................... 6
4 MSP430FR6989IPZ Pinout................................................................................................. 7
5 eZ-FET Emulator............................................................................................................. 8
6 eZ-FET Isolation Jumper Block Diagram................................................................................ 10
7 Application Backchannel UART in Device Manager................................................................... 11
8 LCD Segment Layout...................................................................................................... 11
9 MSP-EXP430FR6989 Power Block Diagram........................................................................... 14
10 LaunchPad to BoosterPack Connector Pinout ......................................................................... 17
11 TI Resource Explorer Cloud .............................................................................................. 21
12 CCS Cloud .................................................................................................................. 22
13 Directing the Project>Import Function to the Demo Project .......................................................... 23
14 When CCS Has Found the Project ...................................................................................... 24
15 Using TI Resource Explorer to Browse MSP-EXP430FR6989 in MSPWare....................................... 26
16 Schematics (1 of 6) ........................................................................................................ 29
17 Schematics (2 of 6) ........................................................................................................ 30
18 Schematics (3 of 6) ........................................................................................................ 31
19 Schematics (4 of 6) ........................................................................................................ 32
20 Schematics (5 of 6) ........................................................................................................ 33
21 Schematics (6 of 6) ........................................................................................................ 34
List of Tables
1 EnergyTrace Technology................................................................................................... 8
2 Isolation Block Connections................................................................................................ 9
3 LCD FH-1138P Segment Mapping....................................................................................... 12
4 LCD-to-MSP Connections................................................................................................. 13
5 Hardware Change Log..................................................................................................... 18
6 Software Examples ........................................................................................................ 18
7 IDE Minimum Requirements for MSP-EXP430FR6989............................................................... 18
8 Source File and Folders................................................................................................... 19
9 Source File and Folders................................................................................................... 20
10 How MSP Device Documentation is Organized........................................................................ 27
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www.ti.com Getting Started
1 Getting Started
1.1 Introduction
The MSP-EXP430FR6989 LaunchPad Development Kit is an easy-to-use Evaluation Module (EVM) for
the MSP40FR6989 microcontroller (MCU). It contains everything needed to start developing on the ultra-
low-power MSP430FRx FRAM microcontroller platform, including on-board emulation for programming,
debugging and energy measurements. The board features on-board buttons and LEDs for quick
integration of a simple user interface as well as a Liquid Crystal Display (LCD) display which showcases
the integrated driver that can drive up to 320 segments. It also offers direct access to the Extended Scan
Interface, which is a dual analog front-end (AFE) created for low-power rotation detection. The
MSP430FR6989 device features ultra-low power consumption, 128KB of embedded ferroelectric random
access memory (FRAM), a nonvolatile memory known for its ultra-low power, high endurance, and high-
speed write access.
Rapid prototyping is simplified by the 40-pin BoosterPack™ Plug-in Module headers, which support a wide
range of available BoosterPack modules. You can quickly add features like wireless connectivity, graphical
displays, environmental sensing, and much more. Design your own BoosterPack or choose among many
already available from TI and third party developers.
The out-of-box provided with the MSP-EXP430FR6989 LaunchPad features the on-board segmented
display and offers two operating modes. Stopwatch Mode can run a timer for up to 24 hours, or
alternatively operate split time, where the display can be frozen and the stopwatch continues running in
the background. The second mode provides a simple thermometer application using the on-chip
temperature sensor. The temperature is displayed on the LCD and can be shown in degrees Fahrenheit or
Celsius.
Free software development tools are also available, such as TI's Eclipse-based Code Composer Studio
(CCS) and IAR Embedded Workbench. Both of these IDEs support EnergyTrace++™ technology for real-
time power profiling and debugging when paired with the MSP430FR6989 LaunchPad. More information
about the LaunchPad, the supported BoosterPack modules and available resources can be found at TI's
LaunchPad portal.
1.2 Key Features
• MSP ULP FRAM technology based MSP430FR6989 16-bit MCU
• EnergyTrace++ technology available for ultra-low-power debugging
• 40 pin LaunchPad standard leveraging the BoosterPack ecosystem
• Onboard eZ-FET emulation
• Two buttons and two LEDs for user interaction
• Segmented LCD
• Pins for direct access to the Extended Scan Interface
1.3 What's Included
1.3.1 Kit Contents
• 1x MSP-EXP430FR6989 LaunchPad Development Kit
• 1x Micro USB cable
• 1x Quick Start Guide
1.3.2 Software Examples
• Out-of-Box Software
• Blink LED
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1.4 First Steps: Out-of-Box Experience
An easy way to get familiar with the EVM is by using its preprogrammed out-of-box code. This code
demonstrates some key features from a user level.
1.4.1 Connecting to the Computer
Connect the LaunchPad using the included USB cable to a computer. A green power LED should
illuminate. For proper operation, drivers are needed. TI recommends installing these driver by installing an
IDE such as TI's CCS or IAR EW430. Drivers are also available at http://www.ti.com/MSPdrivers.
1.4.2 Running the Out-of-Box Demo
When connected to your computer, the LaunchPad powers up and displays a greeting message on the
LCD. Press and hold the S1 and S2 buttons simultaneously to select a new mode. See Section 3 for
detailed explanations of each mode.
1.4.2.1 Stopwatch Mode
This mode provides a simple stopwatch application. It supports split time, where the display freezes while
the stopwatch continues running in the background.
Timer Stopped:
S1 : Start time
S2 : Reset time
Timer Running:
S1 : Stop time
S2 : Split time (lap time)
1.4.2.2 Temperature Mode
This mode provides a simple thermometer application. Using the on-chip temperature sensor, the
temperature is displayed on the LCD.
S1 : Pause current temperature
S2 : Toggle temperature between °F and °C
1.5 Next Steps: Looking Into the Provided Code
After the EVM features have been explored, the fun can begin. It's time to open an integrated
development environment and start editing the code examples. Refer to Section 4 for available IDEs and
where to download them.
The quickest way to get started using the LaunchPad is to use TI's Cloud Development Tools,
http://dev.ti.com. The cloud-based Resource Explorer provides access to all of the examples and
resources in MSPWare. Code Composer Studio Cloud is a simple Cloud-based IDE that enables
developing and running applications on the LaunchPad.
The out-of-box source code and more code examples are provided for download at
http://www.ti.com/tool/msp-exp430fr6989. Code is licensed under BSD, and TI encourages reuse and
modifications to fit specific needs.
Section 3 describes all functions in detail and provides a project structure to help familiarize you with the
code.
With the onboard eZ-FET emulator debugging and downloading new code is simple. A USB connection
between the EVM and a PC through the provided USB cable is all that is needed.
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2 Hardware
Figure 2 shows an overview of the MSP-EXP430FR6989 hardware.
Figure 2. MSP-EXP430FR6989 Overview
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Target Device
MSP430FR6989
Crystal
32.768 kHz
Micro‐B
USB
3.3‐V
LDO
ESD
Protection
Debug
MCU
LED
Red or Green
Crystal
4 MHz
UART or SBW to
Target
User Interface
Two Buttons and
Two LEDs
40‐pin LaunchPad
Standard Headers
Power to Target
Reset
Button Segmented LCD
EnergyTrace
Interface to ESI
Hardware www.ti.com
2.1 Block Diagram
Figure 3 shows the block diagram.
Figure 3. MSP-EXP430FR6989 Block Diagram
2.2 Hardware Features
2.2.1 MSP430FR6989
The MSP430FR6989 is the next device in TI's new ULP FRAM technology platform. FRAM is a cutting
edge memory technology, combining the best features of flash and RAM into one nonvolatile memory.
Device features include:
• 1.8-V to 3.6-V operation
• 16-bit RISC architecture up to 16-MHz system clock and 8-MHz FRAM access
• 128KB of nonvolatile FRAM
• 100 µA/MHz active mode and 350 nA standby with RTC and 3.7-pF crystal
• Certified ULPBench score of 109
• 320-segment LCD controller
• Extended Scan Interface
• 16-channel 12-bit ADC
• Comparator
• Five Timers
• Direct memory access
• 256-bit AES
• 83 GPIOs
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1
P4.3/UCA0SOMI/UCA0RXD/UCB1STE
2P1.4/UCB0CLK/UCA0STE/TA1.0/S1
3P1.5/UCB0STE/UCA0CLK/TA0.0/S0
4P1.6/UCB0SIMO/UCB0SDA/TA0.1
5P1.7/UCB0SOMI/UCB0SCL/TA0.2
6R33/LCDCAP
7P6.0/R23
8P6.1/R13/LCDREF
9P6.2/COUT/R03
10P6.3/COM0
11P6.4/TB0.0/COM1
12P6.5/TB0.1/COM2
13P6.6/TB0.2/COM3
14P2.4/TB0.3/COM4/S43
15P2.5/TB0.4/COM5/S42
16P2.6/TB0.5/ESIC1OUT/COM6/S41
17P2.7/TB0.6/ COM7/S40ESIC2OUT/
18P10.2/TA1.0/SMCLK/S39
19P5.0/TA1.1/MCLK/S38
20P5.1/TA1.2/S37
21P5.2/TA1.0/TA1CLK/ACLK/S36
22P5.3/UCB1STE/S35
23P3.0/UCB1CLK/S34
24P3.1/UCB1SIMO/UCB1SDA/S33
25P3.2/UCB1SOMI/UCB1SCL/S32
26
DVSS1
27
DVCC1
28
TEST/SBWTCK
29
RST/NMI/SBWTDIO
30
PJ.0/TDO/TB0OUTH/SMCLK/SRSCG1
31
PJ.1/TDI/TCLK/MCLK/SRSCG0
32
PJ.2/TMS/ACLK/SROSCOFF
33
PJ.3/TCK/COUT/SRCPUOFF
34
P6.7/TA0CLK/S31
35
P7.5/TA0.2/S30
36
P7.6/TA0.1/S29
37
P10.1/TA0.0/S28
38
P7.7/TA1.2/TB0OUTH/S27
39
P3.3/TA1.1/TB0CLK/S26
40
P3.4/UCA1SIMO/UCA1TXD/TB0.0/S25
41
P3.5/UCA1SOMI/UCA1RXD/TB0.1/S24
42
P3.6/UCA1CLK/TB0.2/S23
43
P3.7/UCA1STE/TB0.3/S22
44
P8.0/RTCCLK/S21
45
P8.1/DMAE0/S20
46
P8.2/S19
47
P8.3/MCLK/S18
48
P2.3/UCA0STE/TB0OUTH
49
P2.2/UCA0CLK/TB0.4/RTCCLK
50
P2.1/UCA0SOMI/UCA0RXD/TB0.5/DMAE0
51 P2.0/UCA0SIMO/UCA0TXD/TB0.6/TB0CLK
52 P7.0/TA0CLK/S17
53 P7.1/TA0.0/S16
54 P7.2/TA0.1/S15
55 P7.3/TA0.2/S14
56 P7.4/SMCLK/S13
57 DVSS2
58 DVCC2
59 P8.4/A7/C7
60 P8.5/A6/C6
61 P8.6/A5/C5
62 P8.7/A4/C4
63 P1.3/TA1.2 /A3/C3/ESITEST4
64 P1.2/TA1.1/TA0CLK/COUT/A2/C2
65 P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+
66 P1.0/TA0.1/DMAE0/RTCCLK/A0/C0/VREF-/VeREF-
67 P9.0/ESICH0/ESITEST0/A8/C8
68 P9.1/ESICH1/ESITEST1/A9/C9
69 P9.2/ESICH2/ESITEST2/A10/C10
70 P9.3/ESICH3/ESITEST3/A11/C11
71 P9.4/ESICI0/A12/C12
72 P9.5/ESICI1/A13/C13
73 P9.6/ESICI2/A14/C14
74 P9.7/ESICI3/A15/C15
75 ESIDVCC
76
ESIDVSS
77
ESICI
78
ESICOM
79
AVCC1
80
AVSS3
81
PJ.7/HFXOUT
82
PJ.6/HFXIN
83
AVSS1
84
PJ.4/LFXIN
85
PJ.5/LFXOUT
86
AVSS2
87
P5.4/UCA1SIMO/UCA1TXD/S12
88
P5.5/UCA1SOMI/UCA1RXD/S11
89
P5.6/UCA1CLK/S10
90
P5.7/UCA1STE/TB0CLK/S9
91
P4.4/UCB1STE/TA1CLK/S8
92
P4.5/UCB1CLK/TA1.0/S7
93
P4.6/UCB1SIMO/UCB1SDA/TA1.1/S6
94
P4.7/UCB1SOMI/UCB1SCL/TA1.2/S5
95
P10.0/SMCLK/S4
96
P4.0/UCB1SIMO/UCB1SDA/MCLK/S3
97
P4.1/UCB1SOMI/UCB1SCL/ACLK/S2
98
DVSS3
99
DVCC3
100
P4.2/UCA0SIMO/UCA0TXD/UCB1CLK
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On devices with UART BSL: P2.0: BSLTX; P2.1: BSLRX
On devices with I2C BSL: P1.6: BSLSDA; P1.7: BSLSCL
Figure 4. MSP430FR6989IPZ Pinout
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2.2.2 eZ-FET Onboard Emulator With EnergyTrace™ Technology
To keep development easy and cost effective, TI's LaunchPad Development Kits integrate an onboard
emulator, which eliminates the need for expensive programmers. The MSP-EXP430FR6989 has the eZ-
FET emulator (see Figure 5), which is a simple and low-cost debugger that supports all MSP430 device
derivatives.
Figure 5. eZ-FET Emulator
The MSP-EXP430FR6989 LaunchPad features full EnergyTrace++ technology. The EnergyTrace
functionality varies across the MSP portfolio, shown in Table 1.
Table 1. EnergyTrace Technology
Features EnergyTrace™ Technology EnergyTrace++™ Technology
Current Monitoring Yes Yes
CPU State No Yes
Peripheral and System State No Yes
Devices Supported All MSP430 MCUs MSP430FR59xx and FR69xx MCUs
Development Tool Required MSP-FET or eZ-FET MSP-FET or eZ-FET
The eZ-FET also provides a "backchannel" UART-over-USB connection with the host, which can be very
useful during debugging and for easy communication with a PC. The provided UART supports hardware
flow control (RTS and CTS), although by default these signals are not connected to the target.
In Figure 5, the dotted line through J101 divides the eZ-FET emulator from the target area. The signals
that cross this line can be disconnected by jumpers on J101, the isolation jumper block. More details on
the isolation jumper block are in Section 2.2.3.
The eZ-FET hardware can be found in the schematics in Section 6 and in the MSP-EXP430FR6989
Hardware Design Files. The software and more information about the debugger can be found on the eZ-
FET wiki.
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2.2.3 Emulator Connection: Isolation Jumper Block
The isolation jumper block at jumper J101 connects or disconnects signals that cross from the eZ-FET
domain into the MSP430FR6989 target domain. This includes eZ-FET Spy-Bi-Wire signals, application
UART signals, and 3.3-V and 5-V power (see Table 2 and Figure 6).
Reasons to open these connections:
• To remove any and all influence from the eZ-FET emulator for high accuracy target power
measurements
• To control 3-V and 5-V power flow between the eZ-FET and target domains
• To expose the target MCU pins for other use than onboard debugging and application UART
communication
• To expose the programming and UART interface of the eZ-FET so that it can be used for devices other
than the onboard MCU.
Table 2. Isolation Block Connections
Jumper Description
GND Ground
5V 5-V VBUS from USB
3V3 3.3-V rail, derived from VBUS in the eZ-FET domain
Backchannel UART: Ready-To-Send, for hardware flow control. The target can use this to indicate whether it is
RTS >> ready to receive data from the host PC. The arrows indicate the direction of the signal.
Backchannel UART: Clear-To-Send, for hardware flow control. The host PC (through the emulator) uses this to
CTS << indicate whether it is ready to receive data. The arrows indicate the direction of the signal.
Backchannel UART: The target FR6989 receives data through this signal. The arrows indicate the direction of the
RXD << signal.
Backchannel UART: The target FR6989 sends data through this signal. The arrows indicate the direction of the
TXD >> signal.
SBW RST Spy-Bi-Wire emulation: SBWTDIO data signal. This pin also functions as the RST signal (active low).
SBW TST Spy-Bi-Wire emulation: SBWTCK clock signal. This pin also functions as the TST signal.
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eZ-FET
Emulator
MCU
Isolation
Jumper Block
Spy-Bi-Wire (SBW) Emulation Application UART
3.3V Power
5V Power
Target MSP430
MCU
eZ-FETMSP430 Target
USB Connector
in out
LDO
BoosterPack Header
BoosterPack Header
USB
EnergyTrace
Hardware www.ti.com
Figure 6. eZ-FET Isolation Jumper Block Diagram
2.2.4 Application (or "Backchannel") UART
The backchannel UART allows communication with the USB host that is not part of the target application's
main functionality. This is very useful during development, and also provides a communication channel to
the PC host side. This can be used to create graphical user interfaces (GUIs) and other programs on the
PC that communicate with the LaunchPad.
Figure 7 shows the pathway of the backchannel UART. The backchannel UART is the UART on
eUSCI_A1. This UART channel is separate from the UART on the 20-pin BoosterPack connector
(eUSCI_A0).
On the host side, a virtual COM port for the application backchannel UART is generated when the
LaunchPad enumerates on the host. You can use any PC application that interfaces with COM ports,
including terminal applications like Hyperterminal or Docklight, to open this port and communicate with the
target application. You need to identify the COM port for the backchannel. On Windows PCs, Device
Manager can assist.
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Figure 7. Application Backchannel UART in Device Manager
The backchannel UART is the "MSP Application UART1" port. In this case, Figure 7 shows COM13, but
this port can vary from one host PC to the next. After you identify the correct COM port, configure it in
your host application according to its documentation. You can then open the port and begin
communication to it from the host.
On the target MSP430FR6989 side, the backchannel is connected to the eUSCI_A1 module. The eZ-FET
has a configurable baud rate; therefore, it is important that the PC application configures the baud rate to
be the same as what is configured on the eUSCI_A1.
The eZ-FET also supports hardware flow control, if desired. Hardware flow control (CTS and RTS
handshaking) allows the target MSP430FR6989 and the emulator to tell each other to wait before sending
more data. At low baud rates and with simple target applications, flow control may not be necessary.
Applications with higher baud rates and more interrupts to service have a higher likelihood that the will not
be able to read the eUSCI_A1 RXBUF register in time, before the next byte arrives. If this happens, the
eUSCI_A1 UCA1STATW register reports an overrun error.
2.2.5 Special Features
2.2.5.1 Liquid Crystal Display (LCD)
The MSP430FR6989 LaunchPad features an on-board LCD! This LCD is driven by the internal LCD driver
on the MSP430FR6989 device.
There are many available LCD segments, including six full alpha-numeric numbers or letters in addition to
several symbols at the top for various modes or applications. Figure 8 shows the layout of the LCD, and
Table 3 and Table 4 list the mapping of these segments.
Figure 8. LCD Segment Layout
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Table 3. LCD FH-1138P Segment Mapping
PIN COM3 COM2 COM1 COM0
1 A1E A1F A1G A1M
2 A1A A1B A1C A1D
3 A1Q NEG A1N A1DP
4 A1H A1J A1K A1P
5 A2E A2F A2G A2M
6 A2A A2B A2C A2D
7 A2Q A2COL A2N A2DP
8 A2H A2J A2K A2P
9 A3R A3F A3G A3M
10 A3A A3B A3C A3D
11 A3Q ANT A3N A3DP
12 A3H A3J A3K A3P
13 A4R A4F A4G A4M
14 A4A A4B A4C A4D
15 A4Q A4COL A4N A4DP
16 A4H A4J A4K A4P
17 A5E A5F A5G A5M
18 A5A A5B A5C A5D
19 A5Q DEG A5N A5DP
20 A5H A5J A5K A5P
21 COM3 - - -
22 - COM2 - -
23 - - COM1 -
24 - - - COM0
25 - - - -
26 - - - -
27 - - - -
28 - - - -
29 - - - -
30 - - - -
31 - - - -
32 TMR HRT REC !
33 B6 B4 B2 BATT
34 B5 B3 B1 []
35 A6E A6F A6G A6M
36 A6A A6B A6C A6D
37 A6Q TX A6N RX
38 A6H A6J A6K A6P
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Table 4. LCD-to-MSP Connections
COM3 COM2 COM1 COM0 COM3 COM2 COM1 COM0
Port Pin Port Pin
LCD Pin LCD Pin
LCDMEM
FR6989 Pin FR6989 Pin
LCDM22 P2.4 S43 P2.5 S42
LCDM21 P2.6 S41 P2.7 S40
LCDM20 P10.2 S39 16 A4H A4J A4K A4P P5.0 S38 15 A4Q A4COL A4N A4DP
LCDM19 P5.1 S37 14 A4A A4B A4C A4D P5.2 S36 13 A4R A4F A4G A4M
LCDM18 P5.3 S35 34 B5 B3 B1 [] P3.0 S34
LCDM17 P3.1 S33 P3.2 S32
LCDM16 P6.7 S31 20 A5H A5J A5K A5P P7.5 S30 19 A5Q DEG A5N A5DP
LCDM15 P7.6 S29 18 A5A A5B A5C A5D P10.1 S28 17 A5E A5F A5G A5M
LCDM14 P7.7 S27 33 B6 B4 B2 BATT P3.3 S26
LCDM13 P3.4 S25 P3.5 S24
LCDM12 P3.6 S23 P3.7 S22
LCDM11 P8.0 S21 4 A1H A1J A1K A1P P8.1 S20 3 A1Q NEG A1N A1DP
LCDM10 P8.2 S19 2 A1A A1B A1C A1D P8.3 S18 1 A1E A1F A1G A1M
LCDM9 P7.0 S17 38 A6H A6J A6K A6P P7.1 S16 37 A6Q TX A6N RX
LCDM8 P7.2 S15 36 A6A A6B A6C A6D P7.3 S14 35 A6E A6F A6G A6M
LCDM7 P7.4 S13 8 A2H A2J A2K A2P P5.4 S12 7 A2Q A2COL A2N A2DP
LCDM6 P5.5 S11 6 A2A A2B A2C A2D P5.6 S10 5 A2E A2F A2G A2M
LCDM5 P5.7 S9 12 A3H A3J A3K A3P P4.4 S8 11 A3Q ANT A3N A3DP
LCDM4 P4.5 S7 10 A3A A3B A3C A3D P4.6 S6 9 A3R A3F A3G A3M
LCDM3 P4.7 S5 P10.0 S4 32 TMR HRT REC !
LCDM2 P4.0 S3 P4.1 S2
LCDM1 P1.4 S1 P1.5 S0
2.2.5.2 Extended Scan Interface (ESI)
The MSP430FR6989 LaunchPad features pins to access the extended scan interface on the device.
These pins are accessed on the through connector ESI1. Some of these pins are also connected to the
BoosterPack header pins. For applications that use the ESI and a connected BoosterPack, be sure to
check for any pin conflicts. Pins can be disconnected from the ESI header using the 0-Ωresistors R6 to
R12, R14, and R15.
The ESI1 header matches the ESI access header on EVM430-FR6989. This EVM is built to show off the
ESI functionality more thoroughly. Any plugin modules from the EVM430-FR6989 can be reused on the
MSP-EXP430FR6989 LaunchPad. Note that when populating the ESI1 header, it must be plugged in from
the bottom side to match the EVM430-FR6989.
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2.3 Power
The board was designed to accommodate various powering methods, including through the on-board eZ-
FET as well as external or BoosterPack power.
Figure 9. MSP-EXP430FR6989 Power Block Diagram
2.3.1 eZ-FET USB Power
The most common power-supply scenario is from USB through the eZ-FET debugger. This provides 5-V
power from the USB and also regulates this power rail to 3.3 V for eZ-FET operation and 3.3 V to the
target side of the LaunchPad. Power from the eZ-FET is controlled by jumper J101. For 3.3 V, make sure
that a jumper is connected across the J101 3V3 terminal.
2.3.2 BoosterPack and External Power Supply
Header J6 is present on the board to supply external power directly. It is important to comply with the
device voltage operation specifications when supplying external power. The MSP430FR6989 has an
operating range of 1.8 V to 3.6 V. More information can be found in the MSP430FR6989 device data
sheet.
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2.4 Measure MSP430 Current Draw
To measure the current draw of the MSP430FR6989 using a multi-meter, use the 3V3 jumper on the
jumper isolation block. The current measured includes the target device and any current drawn through
the BoosterPack headers.
To measure ultra-low power, follow these steps:
1. Remove the 3V3 jumper in the isolation block, and attach an ammeter across this jumper.
2. Consider the effect that the backchannel UART and any circuitry attached to the MSP430FR6989 may
have on current draw. Consider disconnecting these at the isolation jumper block, or at least consider
their current sinking and sourcing capability in the final measurement.
3. Make sure there are no floating inputs/outputs (I/Os). These cause unnecessary extra current draw.
Every I/O should either be driven out or, if it is an input, should be pulled or driven to a high or low
level.
4. Begin target execution.
5. Measure the current. Keep in mind that if the current levels are fluctuating, it may be difficult to get a
stable measurement. It is easier to measure quiescent states.
Alternatively, EnergyTrace++ technology can be used to measure the same current, and see energy
profiles through integrated GUI in CCS and IAR. EnergyTrace allows you to compare various current
profiles and better optimize your energy performance!
2.5 Clocking
The MSP-EXP430FR6989 provides an external clock in addition to the internal clocks in the device.
• Y1: 32-kHz MicroCrystal crystal (MS3V)
The 32-kHz crystal allows for lower LPM3 sleep currents than do the other low-frequency clock sources.
Therefore, the presence of the crystal allows the full range of low-power modes to be used.
The internal clocks in the device default to the following configuration:
• MCLK: DCO 1 MHz
• SMCLK: DCO 1 MHz
• ACLK: REFO 32.768 kHz
For more information about configuring internal clocks and using the external oscillators, see the
MSP430FR69xx Family User's Guide.
2.6 Using the eZ-FET Emulator with a Different Target
The eZ-FET emulator on the LaunchPad can interface to most MSP430 derivative devices, not just the on-
board MSP430FR6989 target device.
To do this, disconnect every jumper in the isolation jumper block. This is necessary, because the emulator
cannot connect to more than one target at a time over the Spy-Bi-Wire (SBW) connection.
Next, make sure the target board has proper connections for SBW. Note that to be compatible with SBW,
the capacitor on RST/SBWTDIO cannot be greater than 2.2 nF. The documentation for designing MSP430
JTAG interface circuitry is the MSP430 Hardware Tools User's Guide.
Finally, wire together these signals from the emulator side of the isolation jumper block to the target
hardware:
• 5 V (if 5 V is needed)
• 3.3 V
• GND
• SBWTDIO
• SBWTCK
• TXD (if the UART backchannel is to be used)
• RXD (if the UART backchannel is to be used)
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• CTS (if hardware flow control is to be used)
• RTS (if hardware flow control is to be used)
This wiring can be done either with jumper wires or by designing the board with a connector that plugs into
the isolation jumper block.
2.7 BoosterPack Pinout
The LaunchPad adheres to the 40-pin LaunchPad pinout standard. A standard was created to aid
compatibility between LaunchPad and BoosterPack tools across the TI ecosystem.
The 40-pin standard is compatible with the 20-pin standard that is used by other LaunchPad kits like the
MSP-EXP430FR4133. This allows some subset of functionality of 40-pin BoosterPack modules to be used
with 20-pin LaunchPad kits.
While most BoosterPack modules are compliant with the standard, some are not. The MSP-
EXP430FR6989 LaunchPad is compatible with all 40-pin BoosterPack modules that are compliant with the
standard. If the reseller or owner of the BoosterPack does not explicitly indicate compatibility with the
MSP-EXP430FR6989 LaunchPad, compare the schematic of the candidate BoosterPack with the
LaunchPad to ensure compatibility. Keep in mind that sometimes conflicts can be resolved by changing
the MSP430FR6989 device pin function configuration in software. More information about compatibility
can also be found at http://www.ti.com/launchpad.
Figure 10 shows the 40-pin pinout of the MSP430FR6989 LaunchPad.
Note that software configuration of the pin functions plays a role in compatibility. The LaunchPad side of
the dashed line in Figure 10 shows all of the functions for which the MSP430FR6989 device pins can be
configured. This can also be seen in the MSP430FR6989 data sheet. The BoosterPack side of the dashed
line shows the standard. The LaunchPad function whose color matches the BoosterPack function shows
the specific software-configurable function by which the MSP430FR6989 LaunchPad adheres to the
standard.
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Figure 10. LaunchPad to BoosterPack Connector Pinout
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2.8 Design Files
2.8.1 Hardware
Schematics can be found in Section 6. All design files including schematics, layout, bill of materials
(BOM), Gerber files, and documentation are available in the MSP-EXP430FR6989 Hardware Design Files.
2.8.2 Software
All design files including TI-TXT object-code firmware images, software example projects, and
documentation are available in the MSP-EXP430FR6989 Software Examples.
2.9 Hardware Change log
Table 5. Hardware Change Log
PCB Revision Description
Rev 1.0 Initial Release
3 Software Examples
There are two software examples included with the MSP430FR6989 LaunchPad (see Table 6), which can
be found in the MSP-EXP430FR6989 Software Examples and are also available in MSP430Ware.
Table 6. Software Examples
BoosterPack
Demo Name Description More Details
Required
The out-of-box demo pre-programmed on the LaunchPad from
OutOfBox_FR6989 None Section 3.1
the factory. Demonstrates features of MSP430FR6989 device.
BlinkLED_FR6989 None Blinks an LED on the LaunchPad at a fixed interval. Section 3.2
To use any of the software examples with the LaunchPad, you must have an integrated development
environment (IDE) that supports the MSP430FR6989 device.
Table 7. IDE Minimum Requirements for MSP-EXP430FR6989
Code Composer Studio™ IDE IAR Embedded Workbench® IDE
CCS v6.1 or later IAR Embedded Workbench for Texas Instruments 430 6.10 or later
For more details on how to get started quickly, and where to download the latest CCS and IAR IDEs, see
Section 4.
3.1 Out-of-Box Software Example
This section describes the functionality and structure of the out-of-box software that is preloaded on the
EVM.
There are two modes in the out-of-box software, stopwatch mode and temperature sensor mode, which
can be controlled with S1 and S2 push buttons on the LaunchPad. This demo shows how to utilize the
LCD_C module, combined with the RTC counter, ADC, and internal temperature sensor, to implement
simple stopwatch and thermometer.
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3.1.1 Source File Structure
The project is split into multiple files. This makes it easier to navigate and reuse parts of it for other
projects (see Table 8).
Table 8. Source File and Folders
Name Description
main.c The out-of-box demo main function, initializations, shared ISRs, and other functions
hal_LCD.c Hardware abstraction layer for LCD
StopWatchMode.c Main function file for stopwatch mode
TempSensorMode.c Main function file for live thermometer mode
Library: Driverlib Device driver library (http://www.ti.com/tool/msp430driverlib)
3.1.2 Power-up and Idle
Upon powering up the out-of-box demo, the LCD displays a scrolling welcome message. The
MSP430FR6989 then enters a loop, in which the LCD cycles through all of its segments followed by a
scrolling instruction message to "Hold S1 and S2 to switch modes".
3.1.3 Stopwatch Mode
While in the power up and idle state or in the temperature sensor mode, the stopwatch mode can be
entered by holding down both S1 and S2 buttons shortly. The LCD displays scrolling text "STOPWATCH
MODE" to indicate successful entry into this mode.
The MSP430FR6989 initializes the stopwatch calendar to HH:MM:SS:CC = 00:00:00:00, then goes to
sleep in LPM3. Because the onboard LCD has six alphanumeric digits, the stopwatch format is initially
MM:SS:CC, but will become HH:MM:SS when the timer reaches the first hour. This stopwatch counts up
to 23h59m59s before resetting back to 00h00m00s.
By pressing the S1 button, the user can start the stopwatch timer (counts up). While the timer is running,
the MSP430FR6989 sleeps and wakes between LPM3 (waiting for RTC interrupt) and active mode
(incrementing calendar and updating LCD). Pressing the S1 button again will stop the stopwatch timer and
returns the MSP430FR6989 back to LPM3 to conserve power. When the stopwatch timer is stopped,
pressing S2 button will reset the timer back to 00:00:00.
While the stopwatch timer is running, pressing S2 button pauses the LCD at the current time but keeps
the timer running in the background, allowing for the "Split timer" functionality. LCD can be resumed to the
running timer by pressing S2 button again.
3.1.4 Temperature Sensor Mode
While inside the stopwatch mode, the temperature sensor mode can be entered by holding down both S1
and S2 buttons shortly. The LCD displays scrolling text "TEMPSENSOR MODE" to indicate successful
entry into this mode.
Upon entering this mode, the MSP430FR6989 initializes the ADC input to its internal temperature sensor
and starts sampling and conversion at four times per second. Each time an ADC conversion completes,
the LCD shows the calculated temperature to the tenths decimal place.
The temperature unit can be toggled between Celsius and Fahrenheit by pressing the S2 button.
The temperature measurement can also be paused or resumed by pressing the S1 button. While the
temperature measurement is running, the MSP430FR6989 sleeps and wakes between LPM3 (waiting for
ADC sample and conversion to finish) and active mode (processing the results and updating LCD). When
the temperature measurement is paused, the MSP430FR6989 enters LPM3 with the LCD remaining on,
displaying the last measured temperature.
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3.2 Blink LED Example
This very simple software example shows how to software toggle a GPIO to blink an LED on the
LaunchPad.
3.2.1 Source File Structure
The project is split into multiple files. This makes it easier to navigate and reuse parts of it for other
projects (see Table 9).
Table 9. Source File and Folders
Name Description
main.c The Blink LED main function
Library: Driverlib Device driver library (http://www.ti.com/tool/msp430driverlib)
The main code utilizes the MSP430 Driver Library to halt the watchdog timer and to configure or toggle
the GPIO pin connected to the LED inside a software loop.
4 Resources
4.1 Integrated Development Environments
Although the source files can be viewed with any text editor, more can be done with the projects if they
are opened with a development environment like Code Composer Studio™ (CCS), IAR Embedded
Workbench®, or Energia.
4.1.1 TI Cloud Development Tools
TI's Cloud-based software development tools provide instant access to MSPWare content and a web-
based IDE.
4.1.1.1 TI Resource Explorer Cloud
TI Resource Explorer Cloud provides a web interface for browsing examples, libraries and documentation
found in MSPWare without having to download files to your local drive (see Figure 11).
Go check out TI Resource Explorer Cloud now at http://dev.ti.com.
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