MT7682 HDK V11 User's Guide
© 2017 Airoha Technology Corp.
Page 11 of 28
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4.
Hardware Feature Configuration
4.1.
Microcontroller
MT7682 features an ARM Cortex-M4 with floating point processor, which is the most energy efficient ARM
processor available.
MT7682 provides low power consumption embedded architecture and it’s optimized for various types of
applications in home automation, smart grid, handheld devices, personal medical devices and industrial control
that have lower data rates, and transmit or receive data on an infrequent basis.
4.2.
Power supply
MT7682 HDK supports two types of power supply.
1)
Power up with a micro-USB connector.
An on-board switching regulator provides voltage of 3.3V for the MT7682 HDK based on MT7682, if the power is
supplied from an on-board micro-USB connector
CON3001
(Figure 2). This supply can be isolated from the
switching regulator using the jumpers. Note, that the jumpers
J2002
pin 1 and 2,
J2003
pin 1 and 2,
J2004
and
J2007
are required to be set on. More details on the jumpers can be found in Table 1.
Table 1. Jumper settings for system power input through USB connection
Jumper
Usage
Comments
J2002(1-2)
3.3V power supply
Use micro-USB connector supporting 3.3V
power source.
J2004
Current measurement
Measures the current flow in MT7682.
J2003(1-2)
AVDD33_VRTC power supply
Use micro-USB connector supporting RTC
3V3 power.
J2007
Current measurement in RTC
mode
Measures the current flow in RTC mode for
MT7682.
2)
Power up using two AA or AAA battery.
•
Connect two external AA battery to battery pin header (
J2001
) to supply power to the system, as shown
in Figure 6. When using two AA battery, plug the USB to micro-USB connector
CON3001
(Figure 2). Note,
that the jumpers
J2002
pin 2 and 3,
J2003
pin2 and 3,
J2004
,
J2007
, and
J2009
are required to be set
on. More details on the jumpers can be found in Table 2.
