MIKROE-1385 mikroElektronika, MIKROE-1385 Datasheet - Page 27

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MIKROE-1385

Manufacturer Part Number
MIKROE-1385
Description
Development Boards & Kits - AVR EASY AVR V7 DEVELOPMENT SYSTEM
Manufacturer
mikroElektronika
Datasheet

Specifications of MIKROE-1385

Rohs
yes
Product
Development Boards
Tool Is For Evaluation Of
ATMEGA32 Devices
Core
AVR
Interface Type
mikroBUS socket, RS-232, USB
Operating Supply Voltage
3.3 V, 5 V
Data Bus Width
8 bit
Dimensions
266 mm x 220 mm
For Use With
MIKROE-240, MIKROE-55
I
EasyAVR
2
In order to connect I
microcontroller you must enable SW5.7 and
SW5.8 as well as appropriate SW6 switches
depending on socket you want to use, as shown
on Figure 17-1. 1kΩ pull-up resistors necessary
for I
SDA and SCL lines once switches are turned
on. Prior to using EEPROM in your application,
make sure to disconnect other peripherals, LEDs
and additional pull-up or pull-down resistors from
the interface lines in order not to interfere with
signal/data integrity.
Enabling I
VCC-BRD
C EEPROM
2
C communication are already provided on
C25
100nF
VCC-BRD
2
v7
C EEPROM
1
2
3
4
2
U4
24C08
A0
A1
A2
VSS
C EEPROM to the
VCC
SDA
SCL
WP
8
7
6
5
VCC-BRD
R48
1K
EEPROM is short for Electrically Erasable
Programmable Read Only Memory. It is
usually a secondary storage memory in devices
containing data that is retained even if the device
looses power supply. Because of the ability to
alter single bytes of data, EEPROM devices are
used to store personal preference and configuration
data in a wide spectrum of consumer, automotive,
telecommunication,
applications.
EasyAVR
communication interface and has 1024 bytes of available
memory. Board contains socket for serial EEPROMs in DIP8
packaging, so you can easily exchange it with different memory size
EEPROM IC. EEPROM itself supports single byte or 16-byte (page) write and
read operations. Data rate is 400 kHz for both 3.3V and 5V power supply.
What is I
I
systems. I²C uses only two open-drain lines, Serial Data Line (SDA) and Serial Clock (SCL), pulled up with
resistors. SCL line is driven by a master, while SDA is used as bidirectional line either by master or slave device.
Up to 112 slave devices can be connected to the same bus. Each slave must have a unique address.
2
R49
1K
EEPROM-SCL
EEPROM-SDA
C is a multi-master serial single-ended bus that is used to attach low-speed peripherals to computer or embedded
v7 supports serial EEPROM which uses I
2
C?
SW5
medical,
SCL
SDA
industrial,
SW6
and
PC
SDA4
SDA3
SDA2
SDA1
SCL4
SCL3
SCL2
SCL1
2
C
PB2
PB0
PC0
PC1
PC5
PC4
PA4
PA6
DIP20B
DIP40B
DIP28
DIP14
DATA BUS
Figure 17-1:
Schematic of
I
module
connected to
DIP40B socket
pins
2
C EEPROM
page 27

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