MEDIATEK LinkIt 7697 HDK, User Manual

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LinkIt 7697 HDK v10 User's Guide
© 2015 - 2017 MediaTek Inc. Page 6
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Get Started with the HDK
This section covers the HDK configuration, driver installation and the update flow for the flash storage.
2.1. Board configuration
The interfaces and modules are shown in Figure 2.
USB pin
header
Reset
Micro-USB
connector
Power LED
USR LED
User configurable
button
CP2102N
wrtnode
7
module
UART RX LED
UART TX LED
Figure 2. Front view of the HDK (created in Fritzing)
•
wrtnode
7
Wi-Fi and Bluetooth LE module : It equips the MT7697 Wi-Fi / BLE SOC and is ready to use with
an on-board antenna and an I-PEX connector. Moreover, a 4MB flash is also included in this module.
•
CP2102N : A USB-to-UART bridge chipset made by Silicon Labs . It’s used during flash update process with
the mt76x7-uploader tool and to switch between the flash normal mode and the flash recovery mode,
automatically.
•
Micro-USB connector : Serves as a 5V power source to the HDK. Connect the HDK to a computer that has
the CP2102N driver installed, to get UART messages (from UART0 on MT7697) using a terminal program.
•
RX / TX LEDs : LEDs used to indicate the transmission states of the UART port (UART0).
•
PWR LED : This LED will light on while connecting to a power source.
•
USR LED : An LED used for user-defined behavior. It’s controlled by P7 pin (GPIO36).
•
RST button : Resets the chipset and is connected to the RST pin. While it’s pressed, it will be linked to the
GND.
•
USR button : A button used for user-defined behavior. It’s connected to P6 pin (GPIO37). When it’s
pressed, it will be linked to the 3V3 source.
•
USB pin header : It provides the same functionality as the micro-USB connector but in the form of pin
headers.
•
MT7697 bootstrap pins : All MT7697 bootstrap pins except GPIO37 (used for Flash Access Mode control)
are hidden from this HDK and not accessible through breakout headers. The Flash Access Mode has to two