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SMM105
Single-Channel Supply Voltage
Marginer and Active DC Output
Controller
Windows GUI Users Guide and
Configuration Register
Descriptions
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FIGURE
2 - HELP MENU
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HELP
MENU
The
Help menu can be used to view the SMM105 Datasheet
or this app note while prototyping with the Windows
GUI. The 'About' selection menu shows the GUI
version number. Please always go to the Summit web
site (www.summitmicro.com) for the most current
data sheet and GUI software. There are also options
if applicable, to view GUI change notices and to
check the web site directly for the most current
GUI version.
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FIGURE
3A - CONFIGURATION WINDOW
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CONFIGURATION
PULL DOWN MENU
This
menu (Figure 3A) has an option that will check for
communications between the device and the PC. This
selection should be tried first before changing any
options. If the test passes, then all other options
can be left in the default condition. If it doesn't
pass, check all SMX3200 cable connections to the
board and PC. If correct, then slow the I2C clock
frequency as described in the Setup Options
paragraph below.
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FIGURE
3B - SETTINGS WINDOW
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FIGURE
4- SETTINGS OPTION WINDOW
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SETUP OPTIONS
In the "File" pull-down menu (Figure 3B), there are
options to set the I2C clock frequency and delays
before I2C Read and Write operations. The default
settings work with most PCs, so these settings are
only for circumstances where the PC cannot
communicate successfully with the SMX3200
programming 'Dongle'. The "Auto-Read
Configuration/Memory After Write" check box enables
a checksum test which compares the GUI hex settings
or file to the programmed device at the end of a
Write sequence. It does this by performing a Write
immediately following a Read.
The "Keep Dongle Supply Voltage Active" check box
is an option to keep the SMX3200 supply always on
to power pull-up resistors on the SMM105 board. If
the pull-ups are tied to another supply, the Dongle
supply is turned on only during programming.
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FIGURE 5- INTERFACING OPTION
WINDOW
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INTERFACING
OPTIONS
The parallel Port Interfacing Window sets different
options for programming the device. The 'Parallel
Port Interfacing' should always be set to 'Dongle'.
The 'Parallel Port Driver' can be changed for
laptops if a problem is encountered in Win9X
systems.
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SUMMIT
Microelectronics, Inc. reserves the right
to make changes to the products contained
in this publication in order to improve
design, performance or reliability. SUMMIT
Microelectronics, Inc. assumes no
responsibility for the use of any circuits
described herein, conveys no license under
any patent or other right, and makes no
representation that the circuits are free
of patent infringement. Charts and
schedules contained herein reflect
representative operating parameters, and
may vary depending upon a user's specific
application. While the information in this
publication has been carefully checked,
SUMMIT Microelectronics, Inc. shall not be
liable for any damages arising as a result
of any error or omission.
SUMMIT Microelectronics, Inc. does not
recommend the use of any of its products
in life support or aviation applications
where the failure or malfunction of the
product can reasonably be expected to
cause any failure of either system or to
significantly affect their safety or
effectiveness. Products are not authorized
for use in such applications unless SUMMIT
Microelectronics, Inc. receives written
assurances, to its satisfaction, that: (a)
the risk of injury or damage has been
minimized; (b) the user assumes all such
risks; and (c) potential liability of
SUMMIT Microelectronics, Inc. is
adequately protected under the
circumstances.
Revision 1.1 - This document supersedes
all previous. Please check the Summit
Microelectronics, Inc. web site at
www.summitmicro.com
for updates.
I2C is a trademark of Philips
Corporation.
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Copyright
© 2003 SUMMIT MICROELECTRONICS, Inc.
Power Management for Communications™
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