Datasheet

VCC-5V
BCK_LIGHT
BCK_PWM PE9
GLCD_VEE
VCC-5V
VEE PE0
PE1
PE2
PE3 PE4 PE5 PE6 PE7 PE8
PE10 PE11
PE12
PE13
BCK_LIGHT
BPWM
PE15
CN32
GLCD-TFT SOCKET
Q5
BC846
R62
20
R66
4K7
R64
1K
BCK_PWM
BPWM
VCC-3.3V
P2
10K
GLCD_VEE
VEE
1 2 3 4 5 6 7 8
O
N
SW13
DATA BUS
In order to use PWM back-light both SW13.3 and SW13.4 switches must be enabled at the same
time.
IMPORTANT:
Graphical Liquid Crystal Displays, or GLCDs
are used to display monochromatic graphical
content, such as text, images, human-machine
interfaces and other content. EasyMx PRO
™
v7 for STM32 provides the connector and
necessary interface for supporting GLCD with
resolution of 128x64 pixels, driven by the KS108
or compatible display controller. Communication
with the display module is done through CN32
display connector. Board is tted with uniquely designed
plastic display distancer, which allows the GLCD module to
perfectly and rmly t into place.
Display connector is routed to PORTE (control and data lines)
of the microcontroller sockets. PORTE is also used by TFT
display. You can control the display contrast using dedicated
potentiometer P2. Full brightness display back-light can be
enabled with SW13.3 switch, and PWM-driven back-light
with SW13.4 switch.
GLCD 128x64
multimedia
page 32
EasyMx PRO
v7
Figure 18-1: GLCD 128x64 connection schematic
Connector pinout explained
CS1 and CS2 - Controller Chip Select lines
VCC - +5V display power supply
GND - Reference ground
Vo - GLCD contrast level from potentiometer P3
RS - Data (High), Instruction (Low) selection line
R/W - Determines whether display is in Read or
Write mode.
E - Display Enable line
D0–D7 - Data lines
RST - Display reset line
Vee - Reference voltage for GLCD contrast
potentiometer P3
LED+ - Connection with the back light LED anode
LED- - Connection with the back light LED cathode