Datasheet

MAX9260 Evaluation Kit
Evaluates: MAX9260
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13) Start the MAX9259 EV kit software by opening its
icon in the Start | Programs menu. The EV kit soft-
ware configuration window appears, as shown in
Figure 7.
14) Press the Connect button and the configuration
window disappears.
15) The EV kit software main window appears, as shown
in Figure 1.
16) Press the Read All button to read all registers on the
MAX9259 and MAX9260.
17) I
2
C Slave Device Demo: Make sure MAX9260 EV kit
headers JU151–JU154 are in the 1-2 position.
18) In the software’s MAX7324 tab (Figure 4), press
the Search for MAX7324 button. Verify that the
MAX7324 Device Address drop-down list shows
0xDA (JU151=1-2 JU152=1-2).
19) Press the LED151-LED158 ON button. Verify that
MAX9260 EV kit LED151–LED158 turn on.
20) Press the LEDs Alternating button. Verify that
MAX9260 EV kit LED151, LED153, LED156, and
LED158 turn off.
21) GPIO Demo: In the software’s MAX9260 tab (Figure
3), scroll down to Register 0x06. Uncheck the
GPIO1OUT checkbox and press the Write button.
Verify that MAX9260 EV kit LED4 turns off.
22) Uncheck the GPIO0OUT checkbox and press
the Write button. Verify that MAX9260 EV kit LED3
turns off.
23) Check the GPIO1OUT checkbox and press
the Write button. Verify that MAX9260 EV kit LED4
turns on.
24) Check the GPIO0OUT checkbox and press
the Write button. Verify that MAX9260 EV kit LED3
turns on.
25) INT Demo: Toggle MAX9260 EV kit switch SW2 up.
Verify that MAX9259 EV kit LED1 turns on, indicating
that MAX9260 INT input is asserted.
26) In the software’s MAX9260 tab, scroll to
Register 0x06 and press the Read button. Verify
that the INT checkbox is checked, indicating that
MAX9260 INT input is asserted.
27) Toggle MAX9260 EV kit switch SW2 down. Verify
that MAX9259 EV kit LED1 turns off, indicating that
MAX9260 INT input is not asserted.
28) In the software’s MAX9260 tab, scroll to
Register 0x06 and press the Read button. Verify
that the INT checkbox is not checked, indicating
that MAX9260 INT input is not asserted.
Detailed Description of Software
The main window of the evaluation software (Figure
1) shows a block diagram representing the MAX9259/
MAX9260 system. The left column shows MAX9259 input
data sources, and the right column shows MAX9260
output data sinks.
The Change Configuration button (Figure 1) brings
up the Configuration window (Figure 7), allowing the
software GUI to select which side of the link the USB
cable should be plugged into. Controlling from the
MAX9260 side requires changing some jumper set-
tings as described in this window. If the MAX9259
and MAX9260 device addresses have been previously
changed from their factory power-on-reset values, the
new addresses must be specified in the Configuration
window to allow register access.
The Baud Rate drop-down list sets the communications
baud rate. The USB link uses the same baud rate as the
MAX9259/MAX9260. Note that the baud rate should only
be changed one step at a time.
The Read All button reads all of the MAX9259 and
MAX9260 device registers. Reset to Default Values
restores recommended factory settings, and Write All
writes all MAX9259/MAX9260 device registers with the
values shown in the GUI.
The MAX9259 tab sheet (Figure 2) provides direct access
to all registers of the MAX9259, and the MAX9260 tab
sheet (Figure 3) provides direct access to all registers of
the MAX9260. Each register has its own Read and Write
button. The small circle next to the Read button turns yel-
low to indicate an attempt to read or write, red to indicate
a failed read or write, and green to indicate a successful
read or write operation.
The MAX7324 tab sheet (Figure 4) controls the I
2
C I/O
expander on the remote side of the link. When USB is
plugged into the MAX9259 EV kit, the MAX7324 tab
sheet controls the MAX7324 (U15) on the MAX9260