Embedded Planet, Inc.
epConnected Asset | Product User Manual
Document Version: 1.0.0 | 26 Jan 22
Embedded Planet, Inc. | 31225 Bainbridge Rd Suite N, Solon, OH 44139 | 216-245-4180 | www.embeddedplanet.com |
Page 21 of 37
Peripheral onboard components collectively powered by the sensor power enable signal:
•
U15 (3-axis accelerometer)
•
U6 (6-axis IMU)
•
U7 (9-axis IMU)
•
U8 (Barometer/Altimeter)
•
U9 (Flash memory)
•
U14 (Temperature/Humidity)
12.8.
Power | Chronos Power Control
The nRF52840 controls power to Chronos via a load switch (U3: AP22802AW5-7). This provides maximum
flexibility for balancing power consumption and data transmission requirements to address as many
applications as possible. Overall battery life can be maximized by using the
Chronos power enable
to turn off
power to the Chronos module while not needed.
•
The
Chronos power enable
pin on the nRF52840 is B11 (P0.28)
•
The
Chronos power enable
signal is active-high
12.9.
Power | Power Tree
The nRF52840 MCU, Chronos, and timer device receive their power directly from the battery (VBAT).
REG0 of the nRF52840 is set for DC/DC configuration to ensure the most efficient use of the available energy in
the battery. The output of REG0 is set for 3.0V and is used to power the external sensors and flash while
enabled by sensor power load switch U5. This also means that the I/O reference voltage on the nRF52840 is
3.0V. REG0 can supply up to a collective
25mA to these components when the nRF52840’s radio is off or
transmitting at +4dB or less. REG1 of the nRF52840 is also set to DC/DC configuration. The output of REG1
powers the nRF52840 and is not available to power external components.
13.
Programming, Debugging, & Development
The epConnected Asset provides SWD interface for programming & debug through a Mini-
Tectonic Edge™
connector (TE1).
Tectonic Edge™ is a
programming and debug board-to-board connection method used among
Embedded Planet devices for connectivity & development ease-of-use.
The recommended programming and debug tool for the epConnected Asset device is the Flidor board by Embedded
Planet. Flidor contains an OpenSDA programming and debug interface that can support simple drag-and-drop
programming of files onto the target device (in this case the target is the epConnected Asset board).
More on Flidor can be found at
https://www.embeddedplanet.com/product-documentation/#flidor
Available documentation on programming the epConnected Asset device (including example software) can be found
at
https://www.embeddedplanet.com/product-documentation/#connected-asset
Summary of Contents for epConnected Asset
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