FET_PWR2
LCL_PWR2
FET_PWR1
LCL_PWR1
FET 2
FET 1
Note: USB FET only
2 AAA
Batteries
BATT
VCC_2
VCC_1
PWR2
PWR1
External
Power Supply
External
Power Supply
F2013
FG4618
LCL
FET
Hardware Installation
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4
SLAU213B – March 2007 – Revised August 2018
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Copyright © 2007–2018, Texas Instruments Incorporated
MSP430FG4618/F2013 Experimenter Board (MSP
‑
EXP430FG4618)
5
Hardware Installation
Power may be provided locally from two onboard AAA batteries, externally from a FET, or from an
external supply. The power source is selected by configuring jumpers VCC_1, VCC_2, and BATT. PWR1
and PWR2 independently control the power supply to each MSP430 MCU. See
Section 6.5.1
the location
of these jumpers.
Figure 3
shows the jumper hierarchy and configuration options.
Figure 3. Jumper Settings for Power Selection
The battery jumper BATT is used to select the onboard batteries to power the system, independent of the
FET connections. The user must ensure that this voltage meets the requirement for proper functionality of
the MSP430 MCU.
The power selection jumpers VCC_1 and VCC_2 select the power connections between the board and
each FET interface. These jumpers are two rows of 3-pin headers, one for each MSP430 onboard.
VCC_1, the bottom row, is for the MSP430FG4618 and, VCC_2 on the top row, is for the MSP430F2013.
A jumper placed on the right 2 pins (FET) selects the JTAG FET as the power source. A jumper placed on
the left 2 pins (LCL) enables local power (either from the batteries or an external supply) to be applied to
each FET for proper logic threshold level matching during program and debug.
Headers PWR1 and PWR2 have been provided to enable power to the individual MSP430s. A jumper
placed on PWR1 provides power to the MSP430FG4618 and a jumper placed on PWR2 provides power
to the MSP430F2013. Individual device current consumption can be measured through each of these
jumpers. Do not make interconnections to the MSP430 MCU that could influence such a measurement.
When the required power selections have been made, the experimenter board is ready to be used. Both
the MSP430FG4618 and MSP430F2013 are factory programmed. After power up, the MSP430FG4618
executes an ultra-low-power real-time clock displayed on the LCD. The MSP430F2013 pulses LED3 from
LPM3 using the VLO for periodic wakeup.
