19-0992; Rev 0; 9/07
MAX7307 Evaluation Kit/Evaluation System
General Description
The MAX7307 evaluation kit (EV kit) is a fully assembled
and tested printed-circuit board (PCB) that demon-
strates the capabilities of the MAX7307 4-port level-
translating GPIO with latching transition detection, blink,
and pulse-width modulation (PWM). The MAX7307 EV
kit also includes Windows
®
98SE/2000/XP-compatible
software that provides a simple graphical user interface
(GUI) for exercising the MAX7307’s features.
The MAX7307 evaluation system (EV system) includes
a MAX7307 EV kit and a Maxim CMAXQUSB serial-
interface board.
The CMAXQUSB board connects to a PC’s USB port
and allows the transfer of I
2
C commands to the
MAX7307 EV kit.
The EV kit comes with the MAX7307ALB+ installed.
Windows is a registered trademark of Microsoft Corp.
PART
MAX7307EVKIT+
MAX7307EVCMAXQU+
Features
♦
400kHz 2-Wire Serial Interface, 5.5V Tolerant
♦
1.62V to 3.6V Operation (VDD)
♦
1.4V to 5.5V I/O Level Translation Port Supply
(VLA)
♦
High Output Sink Current—Up to 25mA per Port
♦
Proven PCB Layout
♦
Windows 98SE/2000/XP-Compatible Evaluation
Software
♦
Fully Assembled and Tested
♦
EV System Includes USB Connectivity
Evaluate: MAX7307
Ordering Information
TYPE
EV Kit
EV System
Component Lists
MAX7307 EV System
PART
MAX7307EVKIT+
CMAXQUSB+
QTY
1
1
DESCRIPTION
MAX7307 EV kit
Serial-interface board
+Denotes
lead-free and RoHS-compliant.
Note:
The MAX7307 EV kit software is designed for use with
the complete EV system. The EV system includes both the
Maxim CMAXQUSB board and the EV kit. If the Windows soft-
ware will not be used, the EV kit board can be purchased with-
out the Maxim CMAXQUSB board.
MAX7307 EV Kit
DESIGNATION
C1
QTY
1
DESCRIPTION
1µF ±15%, 16V X7R ceramic
capacitor (0603)
TDK C1608X7R1C105M
10µF ±15%, 10V X5R ceramic
capacitor (0805)
TDK C2012X5R1A106M
0.1µF ±15%, 25V X7R ceramic
capacitor (0603)
TDK C1608X7R1E104K
Not installed, capacitor (0603)
White LED (PLCC-2)
OPTEK OVS9WBCR4
RGB LED (2.7mm x 2.4mm x
0.95mm)
OPTEK OVSTRGBAC6
DESIGNATION
J1
JU1, JU2, JU5
JU3, JU4
R1
R2
R3
R4
R5
R6
R9, R10
R11
S1, S2
U1
—
QTY
1
3
2
1
1
1
1
1
1
0
1
2
1
1
DESCRIPTION
2 x 10 right-angle female receptacle
3-pin headers
2-pin headers
10kΩ ±5% resistor (0603)
150Ω ±5% resistor (0603)
160Ω ±5% resistor (0603)
270Ω ±5% resistor (0603)
68Ω ±5% resistor (0603)
100kΩ ±5% resistor (0603)
Not installed, resistors (0603)
2kΩ ±5% resistor (0603)
Pushbutton switches
MAX7307ALB+ (10-pin µDFN)
PCB: MAX7307 Evaluation Kit+
C2
1
C3
C4
D1
1
0
1
D2
1
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX7307 Evaluation Kit/Evaluation System
Evaluate: MAX7307
Component Suppliers
SUPPLIER
OPTEK Technologies
TDK Corp.
PHONE
800-341-4747
847-803-6100
WEBSITE
www.optekinc.com
www.component.tdk.com
Note:
Indicate that you are using the MAX7307 when contacting these component suppliers.
MAX7307 EV Kit Files
FILE
INSTALL.EXE
MAX7307.EXE
FTD2XX.INF
UNINST.INI
TROUBLESHOOTING_USB.PDF
Application program
USB device driver file
Uninstalls the EV kit software
USB driver installation help file
DESCRIPTION
Installs the EV kit files on your computer
Quick Start
Recommended Equipment
• One 5V power supply
• MAX7307 EV system:
MAX7307 EV kit
Maxim CMAXQUSB interface board (USB cable
included)
• A user-supplied Windows 98SE/2000/XP PC with a
spare USB port
Note:
In the following sections, software-related items
are identified by bolding. Text in
bold
refers to items
directly from the EV kit software. Text in
bold and
underlined
refers to items from the Windows
98SE/2000/XP operating system.
5) For the MAX7307 EV kit, make sure that the shunts
of all jumpers are in the following default positions:
JU1: (2-3)
CMAXQUSB provides the V
DD
supply
JU2: (1-2)
P1 drives the white LED D1
JU3: (1-2)
JU4: (1-2)
P2 drives the red LED of D2
P3 drives the green LED of D2
JU5: (1-2)
P4 drives the blue LED of D2
6) Carefully align the MAX7307 EV kit’s 20-pin con-
nector with the 20-pin connector of the CMAX-
QUSB board and press them together.
7) Connect the 5V power supply between the
MAX7307 EV kit’s VLA and GND pads.
8) Turn on the 5V power supply.
9) Connect the USB cable from the PC to the CMAX-
QUSB board. A
Building Driver Database
window
pops up in addition to a
New Hardware Found
message, if this is the first time the program runs on
this PC. If you do not see a window that is similar to
the one described above after 30s, remove the USB
cable from the CMAXQUSB and reconnect it.
Administrator privileges are required to install the
USB device driver on Windows 2000 and XP. Refer
to the TROUBLESHOOTING_USB.PDF document
included with the software if you have any problems
during this step.
10) Follow the directions of the
Add New Hardware
Wizard
to install the USB device driver. Choose the
Search for the best driver for your device
option.
Specify the location of the device driver to be
C:\Program Files\MAX7307
(default installation
directory) using the
Browse
button.
Procedure
The MAX7307 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are made.
1) Visit the Maxim website (www.maxim-ic.com/evkit-
software) to download the latest version of the EV
kit software, 7307Rxx.ZIP.
2) Install the MAX7307 evaluation software on your
computer by running the INSTALL.EXE program.
The program files are copied and icons are creat-
ed in the Windows
Start
menu.
3) On the CMAXQUSB board, ensure that the shunt of
JU1 is in the 3.3V position.
4) Enable the I
2
C pullup resistors on the CMAXQUSB
board by setting the DIP switches on SW1 to the
ON position.
2
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MAX7307 Evaluation Kit/Evaluation System
11) Start the MAX7307 EV kit software by opening its
icon in the
Start
menu. The GUI main window will
appear, as shown in Figure 1.
12) Switch to
Port Registers
tab, as shown in Figure 2.
Check the
Output
radio button in the
Port Index
(0x01 - 0x04)
panel and press the
Write
button.
Observe the light change of LED on the EV kit board.
The user will have to wait approximately 2s while
the MAX7307 EV kit software connects to the
CMAXQUSB board.
There are three tabs on the MAX7307 EV kit GUI win-
dow:
Device Configuration Registers, Port
Registers,
and
Help.
There is one group box on the MAX7307 EV kit GUI
window:
Interrupt Status.
There are two buttons on the MAX7307 EV kit GUI win-
dow:
Reconnect
and
Exit.
Evaluate: MAX7307
Detailed Description of Software
To start the MAX7307 EV kit software, double-click the
MAX7307 EV kit icon that is created during installation.
The GUI main window appears as shown in Figure 1.
Figure 1. MAX7307 Evaluation Software Main Window (Device Configuration Registers Tab)
_______________________________________________________________________________________
3
MAX7307 Evaluation Kit/Evaluation System
Evaluate: MAX7307
Figure 2. Port Registers Tab
Device Configuration Registers Tab
The
Device Configuration Registers
tab shown in
Figure 1 contains two group boxes:
Register 0x26
and
Register 0x27.
Press the
Read
button inside those two group boxes to
read the current setting of the corresponding register.
Select the desired setting and press the
Write
button to
set the hardware corresponding registers.
The
Port Index (0x01 - 0x04)
group box selects the port
to be configured; each port can be set as input or output.
Press the
Read
button to read the current device regis-
ter setting and press the
Write
button to write the new
setting to the port register.
Help Tab
The
Help
tab contains the MAX7307 EV kit software
version and Maxim’s website information.
Port Registers Tab
The
Port Registers
tab shown in Figure 2 contains the
Port Index (0x01 - 0x04)
group box,
Port Configuration
as Output
group box,
Port Configuration as Input
group box, and the
Read
and
Write
buttons.
Interrupt Status Group Box
The
Interrupt Status
group box shows the current sta-
tus of the MAX7307
INT
pin. It detects the latched tran-
sition of any port, when the port configured as an input
and the interrupt enabled bit is set.
4
_______________________________________________________________________________________
MAX7307 Evaluation Kit/Evaluation System
Reconnect and Exit Buttons
Press the
Reconnect
button to reestablish the connec-
tion between the EV kit GUI software and MAX7307 EV
kit hardware.
Press the
Exit
button to quit the MAX7307 EV kit GUI
software.
Evaluate: MAX7307
Table 1. Jumpers JU2–JU5 Configuration
JUMPER
SHUNT
POSITION
1-2*
JU2
2-3
Open
1-2*
JU3
Open
1-2*
JU4
Open
1-2*
JU5
2-3
Open
DESCRIPTION
P1 drives the white LED D1
P1 functions as
INT
Use P1/INT pad to evaluate P1/INT
pin
P2 drives the red LED of D2
Use P2/OSCIN pad to evaluate
P2/OSCIN pin
P3 drives the green LED of D2
Use P3/OSCOUT pad to evaluate
P3/OSCOUT pin
P4 drives the blue LED of D2
Use P4 as an input
Use P4 pad to evaluate P4 pin
Detailed Description of Hardware
The MAX7307 is a 4-port level-translating GPIO with
latching transition detection, blink, and PWM. The
MAX7307 EV kit board provides a proven layout for
evaluating the MAX7307. The EV kit comes with a
MAX7307ALB+ installed.
Hardware Reset
Press pushbutton S2 to void current I
2
C transaction
involving the MAX7307. It has the option of resetting the
registers to power-up condition, resetting the PWM,
and the blink-timing counter. Refer to the MAX7307 IC
data sheet for more details on the reset function.
I
2
C Address
The MAX7307 uses fixed I
2
C slave address 0x98
(1001100x).
*Default
position.
Table 2. VDD Selection Configuration
JUMPER
SHUNT
POSITION
1-2
2-3*
DESCRIPTION
User-supplied 1.62V to 3.6V power
supply (VCC)
Powered by CMAXQUSB
Jumper Settings of I/O Ports Configuration
Jumpers JU2–JU5 are used to configure the MAX7307 I/O
ports. Table 1 shows the detailed function of each jumper.
Power Supplies
The I/O level translation port supply (VLA) must be
powered by a user-supplied 1.4V to 5.5V power supply.
The MAX7307 chip supply (VDD) can either be pow-
ered from the CMAXQUSB (2.5V or 3.3V) or from a
user-supplied 1.62V to 3.6V power supply connecting
to VCC, as shown in Table 2. If an external power sup-
ply is used, make sure that the supplied voltage is
compatible with the CMAXQUSB JU1 setting.
JU1
*Default
position.
User-Supplied I
2
C Interface
To use the MAX7307 EV kit with a user-supplied I
2
C
interface, install the shunt on jumper JU1’s 1-2 position
and remove the CMAXQUSB board. Connect SDA,
SCL, and GND lines from the user-supplied I
2
C inter-
face to the SDA, SCL, and GND pads on the MAX7307
EV kit. Apply a 1.62V to 3.6V power supply to the VCC
pad of the MAX7307 EV kit. Depending on the configu-
ration of the user-supplied I
2
C interface, it may be nec-
essary to install I
2
C pullup resistors R9 and R10.
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