Mixed Signal Power Manager Daughter Card Kit
Quickstart Card
Kit Contents – MPM-DC-KIT (RoHS compliant)
Quantity
1
1
4
Description
Mixed Signal Power Manager Daughter Card Kit
9 V power supply
Rubber Feet. If using the MPM-DC with the SmartFusion Evaluation Kit, remove the
legs and replace with rubber feet to match the board height.
Overview
Actel’s Mixed Signal Power Manager (MPM) Daughter Card Kit enables system designers to
evaluate the functionality of Actel's power management solutions in hardware with a four-regulator
benchtop power management development system. The MPM Daughter Card includes four
regulators, four voltage bias potentiometers, and four fault introduction push-button switches,
implementing four fully independent power supplies that can be varied and interrupted to
demonstrate the management capabilities of Actel’s mixed signal power management solution,
MPM.
© 2010 Actel Corporation. All rights reserved.
Mixed Signal Power Manager Daughter Card Kit Quickstart Card
Connections, Jumper Switches, and Settings
Connect jumpers in the default settings to enable the MPM for SmartFusion design to function
correctly before powering up the boards.
• Jumpers from FB (feedback voltage) of each regulator for voltage trimming
– JP12, JP13, JP14, JP15 – Populated with jumper
• Jumpers for selection of PWM or SDD (see the MPM User’s Guide for details)
– JP17, JP18, JP19, JP20 – Connect pins 1-2
• Push-button switches to disable each regulator and simulate a power failure
– SW8, SW11, SW15, SW16
Push-button fault injection switches SW8, SW11, SW15, and SW16 ground the enable pin of the
corresponding regulator, thereby injecting failure in the power subsystem. However, this enable pin
is also connected to the pin on the SmartFusion FPGA (MPM_REG1_EN, MPM_REG2_EN,
MPM_REG3_EN, MPM_REG4_EN).The FPGA could be damaged if configured to drive High on
the enable line when the fault injection switch is pressed. To avoid this, Actel recommends that the
FPGA pin driving this enable should be driving Low or tristated.
MPM Demo Design Description
The MPM demonstration design takes advantage of the processing power and programmable
flexibility of the SmartFusion™ intelligent mixed signal FPGA on the SmartFusion Evaluation Kit
or Development Kit. Connect either kit to the daughter card and download the software as described
to run the demo.
The daughter card consists of four regulated power supplies running from a 9 V supply.
• National switching regulators for 1.5 V and 3.3 V
• Linear Technology and Artesyn DC-DC regulators for 5 V
Using the MPM design one can do the following:
• Monitor voltage for all rails
• Sequence different power rails for power-up and power-down
• Trim and margin a voltage rails in a closed loop
• Sweep the output voltage (POT circuit to change resistor on feedback voltage)
• Induce failures by disabling the enable input of regulator (push-button to GND enable)
Power sequencing is done by sequentially asserting or deasserting channel enable pins for power-up
and power-down, respectively, and monitoring the associated channel voltage. All enable pins to the
regulator are active high.
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Mixed Signal Power Manager Daughter Card Kit Quickstart Card
Software for MPM Demo Design
Download the MPM Executable which contains the demo design from the Actel website:
http://www.actel.com/products/hardware/devkits_boards/mpm_dc.aspx.
Run the demo design executable. This will install the MPM GUI. From the MPM GUI you can
program the demo design into the SmartFusion device and configure your power sequence or
trimming. You can update the sequence by uploading only the NVM register locations after the first
time you program the main design to the board.
Running the MPM Demo Design
With the SmartFusion Evaluation Kit
– Connect the MPM daughter card to the A2F-EVAL-KIT
board. Connect both USB cables from your PC to the evaluation kit. One USB provides power and
UART connection; the other provides the programming connection. If you are using the daughter
card with the evaluation kit, you can remove the plastic legs and add the rubber feet supplied for this
purpose.
With the SmartFusion Development Kit
– Connect the MPM daughter card to the A2F-DEV-KIT
board. Connect the 9 V power supply to the MPM Daughter Card and the 5 V power supply to the
development kit. It is a good idea to double check the voltages before connecting the supplies.
Connect the low-cost programming stick to the development kit and connect with a USB cable to the
PC for programming. Also connect the other USB cable to the USB connection on the board and to
your PC.
From the MPM GUI, select
File
>
Write Device
to load the MPM design to the device for the first
time. Use the switches on the evaluation or development kit to activate the power-up sequence. You
can then create interrupts and change POT settings to review the performance of the board. The
OLED shows the voltage of each of the first four power rails.
• SW1 initiates MPM power-up or power-down, depending on current state
• SW2 moves to the next OLED "screen" (e.g., next channel details)
To change the power sequence, use the GUI to change the settings and then do
File
>
Write NVM
to
update the register settings. It is not necessary to write the device again.
The demo design has many capabilities. To fully understand and use power management,
please refer to the documentation.
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Mixed Signal Power Manager Daughter Card Kit Quickstart Card
Documentation Resources
For full information on the daughter card and the usage of the MPM GUI, refer to the MPM User's
Guide, Mixed Signal Power Manager Kit website page:
http://www.actel.com/products/hardware/devkits_boards/mpm_dc.aspx#rsc
The source files for the reference design are also available to allow you to adapt and develop your
own power management designs. Reference material supplied includes the board schematics and
bill-of-materials (BOM).
Software and Licensing
In order to review or edit the reference design, you need Actel’s Libero
®
Integrated Design
Environment (IDE). This is not required to run the MPM demonstration but is needed only if you
want to explore the source files. This can be downloaded from the Actel website (www.actel.com)
and used by registering for your free Gold license.
The SmartFusion device uses an ARM
®
Cortex™-M3 processor. The application code and project
are done using Actel’s SoftConsole Eclipse based IDE. This can be installed as part of the Libero
IDE install by selecting the SoftConsole option during the installation process. SoftConsole is used
for programming and debug of embedded processor designs.
Software releases:
www.actel.com/download/software/libero
License Updates:
https://www.actel.com/portal/default.aspx?r=1
Technical Support and Contacts
Technical support is available online at
www.actel.com/support,
by email at
tech@actel.com,
or by
phone:
Phone (NA): 800.262.1060
Phone (Int'l): +1 650.318.4460
Actel Sales offices, including Representatives and Distributors, are located worldwide. To find your
local representative go to:
www.actel.com/company/contact.
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