Energy EFM32 EXP32 User Manual
...the world's most energy friendly microcontrollers
EXP32 Prototype Board
Preliminary
The EXP32 Prototype Board is a versatile plugin module for integration of custom circuits with the EFM32.
The VMCU power domain is tracked by the Advanced Energy Monitor (AEM), which gives detailed information
about the current consumption.
Features:
• Ready-to-use prototyping area for hole-mount, TSSOP, SO, SOT23-6, SOT23 and 0805 SMD components.
• VMCU power domain tracked by the Advanced Energy Monitor (AEM).
• 3.3V and 5V power domains available.
• All EFM32 IO lines directly accessible through pin headers.
• User LEDS ready for use.
• LEDS indicating power.
...the world's most energy friendly microcontrollers
2009-11-19 Rev: t0004_1.00 2
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1 Usage
1.1 Placement
This board is intended for use with the EFM32 Gecko Development Kit.
1.2 Prototyping Area
The prototype area supports hole-mounted devices as well as TSSOP, SO, SOT23-x, SOT23 and 0805
SMD components. For some of the IC footprints there is a dedicated footprint for decoupling capacitors.
Please see schematic for details.
1.3 Voltages
The prototype board has 3 supply voltages: 5V, 3.3V and VMCU. VMCU is used by the EFM32 microcontroller, and the corresponding current consumption is tracked by the AEM. For each of the supply
voltages, there is a corresponding LED indicating if the power is present. Either of the voltages may be
used to power custom circuitry, but verify not to connect different power-domains directly.
Note
Make sure not to connect circuitry powered by different supply voltages without proper level
translation! E.g. do not directly connect circuits powered by 3.3V to the EFM32.
1.4 User LEDs
4 user LEDs with corresponding resistors are available on the protoboard. They may easily be soldered
to other circuitry. See schematic for details.
1.5 Pin Headers
The proto board features 10 20-pin headers. Pin 1 and 19 are connected to GND, whereas 2 and 20 may
be connected to VMCU and 3V3 respectively by inserting 0-ohm resistors. See schematic for details.
When the protoboard is connected to the Kit, all GPIO-lines from the MCU-board are available, provided
that the signals are available from the MCU-board. Also, several pheripherals on the Kit mainboard are
available. Please see the schematic of the respective boards for detailed information.
Note
In order for a signal from a EFM32 port to be available on the protoboard, the signal must
be routed out from the EFM32 board.
5
4
3
2
1
D D
C C
B B
A A
EFM32 Development Kit
EFM32 Development KitEFM32 Development Kit
EFM32 Development Kit
Board Function
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Board Function Page
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Revision History
Revision HistoryRevision History
Revision History
Comment
CommentComment
CommentRevision
RevisionRevision
Revision
EXP32 Connector A
EXP32 Connector B
Power Connectors
Dummy Components
Added some and removed some viasPA4
PA5 Removed a rouge via
PA6 BOM changes
A Removed two voltage hooks and
added one gnd hook
Size
Designed:
Revision
Sheet
of
Approved:
Sheet Created Date Sheet Modified Date
Document number
Schematic Title
Design Created Date:
BOM Doc No:
Page Title
A
Thursday, November 19, 2009
1 5
A3
EXP32 Prototyping Board
<Cage Code>
Tuesday, February 17, 2009
Wednesday, December 03, 2008
TOP
/
Front Page
Size
Designed:
Revision
Sheet
of
Approved:
Sheet Created Date Sheet Modified Date
Document number
Schematic Title
Design Created Date:
BOM Doc No:
Page Title
A
Thursday, November 19, 2009
1 5
A3
EXP32 Prototyping Board
<Cage Code>
Tuesday, February 17, 2009
Wednesday, December 03, 2008
TOP
/
Front Page
Size
Designed:
Revision
Sheet
of
Approved:
Sheet Created Date Sheet Modified Date
Document number
Schematic Title
Design Created Date:
BOM Doc No:
Page Title
A
Thursday, November 19, 2009
1 5
A3
EXP32 Prototyping Board
<Cage Code>
Tuesday, February 17, 2009
Wednesday, December 03, 2008
TOP
/
Front Page
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