Mikroe COUNTER click User manual

2 3
2. Soldering the headers
3. Plugging the board in
Once you have soldered the headers your
board is ready to be placed into the desired
mikroBUS™socket. Make sure to align the cut
in the lower-right part of the board with the
markings on the silkscreen at the mikroBUS™
socket. If all the pins are aligned
correctly, push the board all the
way into the socket.
Turn the board upward again. Make sure
to align the headers so that they are
perpendicular to the board, then solder the
pins carefully.
Turn the board upside down so that
the bottom side is facing you upwards.
Place shorter pins of the header into the
appropriate soldering pads.
Before using your click board™, make sure
to solder 1x8 male headers to both left and
right side of the board. Two 1x8 male headers
are included with the board in the package.
4. Essential features
Incremental encoders output A and B pulses
which are out of phase to each other, ideally
by 90º. The LS7366R CMOS counter takes
these signals as inputs. The decoded input is
then used for non-quadrative, up/down, free
running counting (the IC has many count-
ing modes). Applications include measure-
ment of the direction and RPM of DC motor
shafts. This data can be used for monitoring
and ensuring the proper operation of shafts
in industrial, robotic and a number of other
domains. The chip has multiple operating
modes.
1
Counter click carries an LS7366R quadra-
ture counter. The top of the board has a
pinout for interfacing with incremental en-
coders. The interface has ENCA and ENCB
pins, along with ENCI, which is a program-
mable index. On the other side, Counter
click communicates with the target board
microcontroller through the mikroBUS™
SPI interface (CSK, MISO, MOSI), plus enable
(CNT EN) and interrupt (LFLAG or DFLAG)
pins. The board can use either a 3.3V or a
5V power supply.
1. Introduction
Counter click Manual v101
0100000089408
click
BOARDS™
www.mikroe.com
COUNTER click
Counter click Manual v101

AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
MIKROBUS DEVICE CONN.1
GNDGND
POWER SELECTOR
VCC
FCKO
1
FCKI
2
VSS
3
SS
4
SCK
5
MISO
6
MOSI
7LFLAG 8
DFLAG 9
INDEX 10
B11
A12
CNT_EN13
VDD14
LS7366R
U1
VCC
GND
CNT_EN
ENC_A
ENC_B
ENC_I
FCKO
FCKI
CS
SCK
MISO
MOSI
3V3 5V
SCK
CS
CNT_EN
MISO
MOSI
INT
C2
18pF
C1
18pF
GNDGND
FCKO
FCKI
R1
10k
R2
10k
R3
10k
VCC VCC VCC
6
8
109
7
5
12
34
CN1
GND
VCC
ENC_A
ENC_B
ENC_I
ENC_A
ENC_B
ENC_I
R4
1M
INT
R5
10k
VCC
C3
100n
C4
100n
C5
100n
VCC VCC VCC
GNDGNDGND
X1
20MHz
DF
C6
15pF
C7
15pF
C8
15pF
GNDGNDGND
PWR
R6
470R
GND
VCC
LF
INT SEL
8. Code examples
MikroElektronika oers free tech support
(www.mikroe.com/support) until the end of
the product’s lifetime, so if something goes
wrong, we’re ready and willing to help!
Once you have done all the necessary
preparations, it’s time to get your click board™
up and running. We have provided examples
for mikroC™, mikroBasic™ and mikroPascal™
compilers on our Libstock website. Just
download them and you are ready to start.
.com
6. Dimensions
MikroElektronika assumes no responsibility
or liability for any errors or inaccuracies
that may appear in the present document.
Specication and information contained in
the present schematic are subject to change
at any time without notice.
Copyright © 2015 MikroElektronika.
All rights reserved.
mm mils
LENGTH 42.9 1690
WIDTH 25.4 1000
HEIGHT* 3.9 154
5. Schematic
9. Support
* without headers
10. Disclaimer
Counter click has two SMD jumpers (zero ohm
resistor). One lets you switch between a 3.3V
or a 5V power supply. The other is for setting
the interrupt as LFLAG (open drain latched
output) or DFLAG (push-pull output).
25.4 mm / 1000 mils
42.9 mm / 1690 mils
7. SMD jumpers