MIKROE-995 mikroElektronika, MIKROE-995 Datasheet - Page 27

• Manufacturer Part Number: MIKROE-995
• Description: Development Boards & Kits - PIC / DSPIC EasyPIC PRO v7
• Manufacturer: mikroElektronika

Specifications of MIKROE-995

• Rohs: yes
• Product: Development Boards
• Interface Type: I2C, SPI
• Operating Supply Voltage: 7 VAC to 23 VAC, 9 VDC to 32 VDC

GLCD 128x64
EasyPIC PRO
Graphical Liquid Crystal Displays, or GLCDs are used to
display monochromatic graphical content, such as text,
images, human-machine interfaces and other content.
EasyPIC PRO
interface for supporting GLCD with resolution of 128x64
pixels, driven by the KS108 or similar display controller.
Communication with the display module is done through
CN16 display connector. Board is fitted with uniquely
designed plastic display distancer, which allows the GLCD
Figure 13-1: GLCD 128x64 connection schematics
™
v7 provides the connector and necessary
v7
module to perfectly and firmly fit into place.
Display connector is routed to PORTB (control lines)
and PORTD (data lines) of the microcontroller sockets.
Since PORTB is also used by 2x16 character LCD
display, you cannot use both displays simoutaneously.
You can control the display contrast using dedicated
potentiometer P3. Display backlight can be enabled with
SW4.2 switch, and PWM-driven backlight with SW4.3
switch.
Standard and PWM-driven backlight
As for LCD, we have allowed GLCD backlight to be enabled in two
different ways:
1. It can be turned on with full brightness using SW4.2 switch.
2. Brightness level can be determined with PWM signal from the
IMPORTANT:
microcontroller, allowing you to write custom backlight controling
software. This backlight mode is enabled with SW4.3 switch.
In order to use PWM backlight both SW4.2 and SW4.3 switches must be
enabled at the same time.
Connector
pinout explained
CS1
VCC
GND
Vo
RS
R/W
E
D0–D7
RST
Vee
LED+
LED-
- Display Enable line
- GLCD contrast level from potentiometer P4
- Data (High), Instruction (Low) selection line
- +5V display power supply
and
- Reference voltage for GLCD contrast potentiometer P3
- Display reset line
- Determines whether display is in Read or Write mode.
- Reference ground
- Connection with the backlight LED cathode
- Connection with the backlight LED anode
- Data lines
CS2
- Controller Chip Select lines
page 27