USER GUIDE
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EM8500 SERIES
Copyright
2016, EM Microelectronic-Marin SA
EMDVK8500-MN01, Version 2.0, 5-Jul-16
11
420005-A01, 3.0
5
HARDWARE DESCRIPTION OVERVIEW
The EMDVK8500 exists in different variants to support each device of the EM8500 series. In this document without specific
description the name 8500 applies for any member of the EM8500 series. Some particular description refers to specific
parts (e.g: EM8500, EM8502,…).
The architecture of the EMDVK8500 is based on the following block diagram
USB
USB
Hub
USB
Media Port
USB
Memory Stick
Power
supply
USB
UART
MAIN MCU
Level Shifter
ADC
IPS BASE BOARD
EM6819 MCU
RF EM9301
BTN, LEDS
APPLICATION BOARD
DAUGHTER BOARD
EM8500
Switch - Relays
+ +
+
+
LTS
+
STS
P
O
W
E
R
C
T
R
L
HRV
M
E
A
S
.
P
O
W
E
R
_
G
R
O
U
N
D
I
2
C
/
S
P
I
I
2
C
/
S
P
I
Figure 5-1 EMDVK8500 System Architecture
The IPS Base board connects the PC to the EMDVK8500 daughter board through USB. The IPS base board contains a
microcontroller (Main MCU) to perform several tasks:
Ɩ
Communication to the PC (USB)
Ɩ
Communication to the EM8500 (support for I
2
C and SPI bus)
Ɩ
ADC acquisition (MEAS.)
Ɩ
Switch and relay control (CTRL)
The EMDVK8500 daughter board is the core of the harvesting system based on the EM8500 device. It features:
Ɩ
Switches for connecting the harvester source (HRV), the storage elements (Short Term Storage STS - Long Term
Storage LTS)
Ɩ
Connections to the loads (POWER and POWER_GROUND).
Ɩ
Some access to the voltage nodes monitored by MEAS.
Ɩ
Multiple access to the different nodes of the system and shunt resistors (for current or power analysis) for HRV,
LTS and STS
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Jumpers for configuration
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On board default HRV, STS and LTS with spare position (STS)
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Additional expansion connector to connect external HRV, STS and LTS.
