Advertisement
www.ti.com
5
Special Consideration for Shared Pins
To provide compatibility with the MSP430 LaunchPad's BoosterPack interface as well as to provide a
maximum number of signals to the BoosterPack Interface and BoosterPack XL Interface, it was necessary
to route some signals to more than one pin. In addition, certain on-board functions such as the button and
LED signals are available on the BoosterPack Interface and BoosterPack XL Interface. A 0-Ω jumper
resistor was installed for signals that are used for more than one purpose or routed to more than one
GPIO. Removal of this jumper disconnects the functions. All jumpers are installed by default. A listing of
these jumpers and the respective use of each is provided in
Resistor
R1
R2
R8
R9
R10
R11
R12
R13
6
Tiva C Series LaunchPad Dimensions and Mating
See
Figure 2
for a dimensional drawing of the Stellaris LaunchPad. J1 and J2 are 1.8 in (4,572 cm) apart
and constitute the BoosterPack interface. J3 and J4 are 1.6 in (4,064 cm) apart and constitute the
BoosterPack XL Interface. Other major board signals are available on unpopulated headers on a 0.1-in
(2,54-mm) grid. Dimensions to these signals are provided for convenience. These signals are subject to
change or move across revisions of the Tiva C Series LaunchPad or future LaunchPads. It is
recommended that BoosterPacks use only the BoosterPack Interface and BoosterPack XL Interface. Use
of other pins and signals is acceptable, but these pins and signals can change at any time.
SPMU288A – August 2012 – Revised April 2013
Submit Documentation Feedback
Table 6. Tiva C Series LaunchPad Jumper List
Primary Function
Alternate Function
Right User Switch
Red LED
To PF1 and J3.10
Hibernate Wake
To PF0 and J2.04 via
PB6 SSI2 TX on J2.07
PD0 I2C SCL on J2.07
PB7 SSI2 RX on J2.06
PD1 I2C SDA on J2.06
Blue LED
To PF2 and J4.01
Green LED
To PF3 and J4.02
Left User Switch
To PF4 and J4.10
Tiva™ C Series EK-TM4C123GXL LaunchPad: BoosterPack Development
Copyright © 2012–2013, Texas Instruments Incorporated
Special Consideration for Shared Pins
Table
6.
J2.04
Test pin on MSP430 LaunchPad. This connection
along with R13 provides Hibernate wake to
BoosterPack Interface
If removed: allows extra GPIO to the BoosterPack
XL Interface.
If installed (default): allows BoosterPack to drive
LED or sense LED state. Also provides Embedded
Trace signal TRD1.
Allows user switch 2 to wake device from
R1
hibernate. Also ties wake to J2.04 to allow
BoosterPack to wake Stellaris LaunchPad from
Hibernate.
2
Routes I
C from PD0 to J2.07 for MSP430-Tiva C
Series LaunchPad compatibility. If using PD0 or
PB6, the unused GPIO must be configured as an
input or R9 removed.
2
Routes I
C from PD1 to J2.06 for MSP430-Tiva C
Series LaunchPad compatibility. If using PD1 or
PB7, the unused GPIO must be configured as an
input or R9 removed.
If removed: allows extra GPIO to the BoosterPack
XL Interface.
If installed (default): allows BoosterPack to drive
LED or sense LED state Also provides Embedded
Trace signal TRD0.
If removed: allows extra GPIO to the BoosterPack
XL Interface.
If installed (default): allows BoosterPack to drive
LED or sense LED state. Also provides Embedded
Trace signal TRDCLK.
If removed: allows extra GPIO to the BoosterPack
XL Interface.
If installed (default): allows BoosterPack to
simulate switch press or sense switch state.
Comments
7
Guide
Advertisement
