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Develop an Application With the MSP-EXP430G2 LaunchPad
4.5
Connecting a Crystal Oscillator
The MSP-EXP430G2 LaunchPad offers a footprint for a variety of crystal oscillators. The XIN and XOUT
signals of the LFXT1 oscillator can support low-frequency oscillators like a watch crystals of 32768 Hz or a
standard crystal with a range defined in the associated data sheet. The signal lines XIN and XOUT can
also be used as multipurpose I/Os or as a digital frequency input. More information on the possibilities of
the low-frequency oscillator and the possible crystal selection can be found in the
MSP430x2xx Family
User's Guide
(
SLAU144
) or the device-specific data sheet.
The oscillator signals are connected to J2 to use the signals on an attached application board. In case of
signal distortion of the oscillator signals that leads to a fault indication at the basic clock module, resistors
R29 and R28 can be used to disconnect the pin header J2 from the oscillating lines.
4.6
Connecting a BoosterPack
The LaunchPad can connect to many BoosterPacks within the ecosystem. The BoosterPack headers J1
and J2 along with power supply J6 fall on a 100-mil (0.1-in) grid to allow for easy and inexpensive
development with a breadboard. The LaunchPad adheres to the 20-pin LaunchPad pinout standard. A
standard was created to aid compatibility between LaunchPads and BoosterPacks, across the TI
ecosystem.
The 20-pin standard is backward compatible with the 40-pin standard used by LaunchPads like the
MSP-
EXP430F5529LP
. This allows a subset of some 40-pin BoosterPacks to be used with 20-pin LaunchPads.
While most BoosterPacks are compliant with the standard, some are not. The LaunchPad is compatible
with all 20-pin (and 40-pin) BoosterPacks that are compliant with the standard. If the reseller or owner of
the BoosterPack does not explicitly indicate compatibility with the MSP430G2 LaunchPad, you might want
to 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 G2 device pin function
configuration in software. More information about compatibility can also be found at
http://www.ti.com/launchpad
.
4.7
Supported Devices
Texas Instruments offers several MSP430 devices in a PDIP package that is compatible with LaunchPad.
Table 3
shows the supported devices.
Table 3. Supported Devices
Part Number
Family
Description
MSP430F2001
F2xx
16-bit Ultra-Low-Power Microcontroller, 1KB Flash, 128B RAM, Comparator
MSP430F2002
F2xx
16-bit Ultra-Low-Power Microcontroller, 1KB Flash, 128B RAM, 10-Bit SAR A/D, USI for SPI/I
2
C
MSP430F2003
F2xx
16-bit Ultra-Low-Power Microcontroller, 1KB Flash, 128B RAM, 16-Bit Sigma-Delta A/D, USI for SPI/I
2
C
MSP430F2011
F2xx
16-bit Ultra-Low-Power Microcontroller, 2KB Flash, 128B RAM, Comparator
MSP430F2012
F2xx
16-bit Ultra-Low-Power Microcontroller, 2KB Flash, 128B RAM, 10-Bit SAR A/D, USI for SPI/I
2
C
MSP430F2013
F2xx
16-bit Ultra-Low-Power Microcontroller, 2KB Flash, 128B RAM, 16-Bit Sigma-Delta A/D, USI for SPI/I
2
C
MSP430G2001
G2xx
16-bit Ultra-Low-Power Microcontroller, 512B Flash, 128B RAM
MSP430G2101
G2xx
16-bit Ultra-Low-Power Microcontroller, 1KB Flash, 128B RAM
MSP430G2111
G2xx
16-bit Ultra-Low-Power Microcontroller, 1KB Flash, 128B RAM, Comparator
MSP430G2121
G2xx
16-bit Ultra-Low-Power Microcontroller, 1KB Flash, 128B RAM, USI for SPI/I
2
C
MSP430G2131
G2xx
16-bit Ultra-Low-Power Microcontroller, 1KB Flash, 128B RAM, 10-Bit SAR A/D, USI for SPI/I
2
C
MSP430G2201
G2xx
16-bit Ultra-Low-Power Microcontroller, 2KB Flash, 128B RAM
MSP430G2211
G2xx
16-bit Ultra-Low-Power Microcontroller, 2KB Flash, 128B RAM, Comparator
MSP430G2221
G2xx
16-bit Ultra-Low-Power Microcontroller, 2KB Flash, 128B RAM, USI for SPI/I
2
C
MSP430G2231
G2xx
16-bit Ultra-Low-Power Microcontroller, 2KB Flash, 128B RAM, 10-Bit SAR A/D, USI for SPI/I
2
C
16-bit Ultra-Low-Power Microcontroller, 1KB Flash, 256B RAM, USI for SPI/I
2
C, 16 Capacitive-Touch
MSP430G2102
G2xx
Enabled I/O Pins
16-bit Ultra-Low-Power Microcontroller, 2KB Flash, 256B RAM, USI for SPI/I
2
C, 16 Capacitive-Touch
MSP430G2202
G2xx
Enabled I/O Pins
11
SLAU318F – July 2010 – Revised January 2015
MSP-EXP430G2 LaunchPad Evaluation Kit
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