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2.
Get started with the HDK
Before commencing the application development, you need to configure the development platform.
2.1.
Configuring the LinkIt 7687 HDK
LinkIt 7687 HDK includes a main board and a MT7687F stamp module. The MT7687F stamp module is mounted on
the main board. The top view of the main board is shown in Figure 1.
CON5
J30
J27
J28
Left to Right
S4(RTC_INT)
S5(EINT)
S1(RST)
The description of pins (Figure 1) and their functionality is provided below.
1) CON5 is a USB connector to debug through UART, transmit and receive a signal and supply power from the
PC. The USB connectivity with the PC is supported by the on-board MK20DX128VFM5.
Set the jumpers J23, J26, J27and J30 on, if the board is powered using the USB connector.
•
2) Press S4 to wake up the system from the RTC mode.
3) S5 enables the external interrupt (configured at GPIO0), see section 4.4, "Buttons" for more details.
4) Press S1 to reset the system.
5) JP33 enables the board to support RTC interrupt mode, if the jumper pins 1 and 2 are connected.
6) J25 sets the flash mode (see section 2.3, "Configuring the HDK flash mode").
7) Wi-Fi Antenna is a PCB antenna. MT7687F stamp module is by default connected to the PCB antenna to
transmit and receive RF signals.
The default configuration of the LinkIt 7687 HDK support the following functionality:
1) Power supply - attach a micro-USB connector to the CON5.
This document contains information that is proprietary to MediaTek Inc. ("MediaTek") and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
J24 J23 J26
Figure 1. Top view of the LinkIt 7687 HDK
© 2015 – 2016 MediaTek Inc.
LinkIt 7687 HDK V30 User's Guide
1 2 3
JP33
J25(FLASH MODE)
SMA Connector
for Wi-Fi
Page 5 of 23
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