User's Manual

MediaTek LinkIt™ Smart 7688 User Manual
Scenario
Approximate
Power
Consumption
Downloading a
file to a USB
Drive via Wi-Fi
Peak
616.6 mA
Average
347.5 mA
Downloading a
file to flash
via Wi-Fi
Peak
578.5 mA
Average
336.3 mA
Table 8 Peripherals Power Consumption
1.4.7. Accessories
LinkIt Smart 7688 Duo standard package comes with the development board
only. The accessories are the same as LinkIt Smart 7688. Please refer to
1.3.7Accessoriesfor more information.
1.4.8. JTAG
You can use JTAG interface to debug MT7688AN. To access JTAG interface, you
will need to unsolder resistor R95 and solder it to resistor R3 on the 7688
development board. After youve moved the resistor and reboot the device
youll activate JTAG function. The steps are:
1) Find a group of resistors on the bottom side of LinkIt Smart
7688 Duo (top-right view) as circled in Figure 7.
Figure 7 JTAG resistors on LinkIt Smart 7688 Duo bottom view
2) Next, you will move a resistor by unsoldering and soldering
it to a lower position as shown in Figure 8, after youre
finished moving the resistor, restart the device and you
should be able to access JTAG mode.
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