参数资料
型号: 101-0954
厂商: Rabbit Semiconductor
文件页数: 105/156页
文件大小: 0K
描述: KIT DEV RABBIT RCM3360/3370 INTL
标准包装: 1
系列: RabbitCore 3000
适用于相关产品: RCM3360
C.2 Contrast Adjustments for All Boards
Depending on when you acquired your LCD/keypad module, you will be able to set the
contrast on the LCD display by adjusting the potentiometer at R2 or by setting the voltage
for 3.3 V by setting the jumper across pins 3–4 on header J5 as shown in Figure C-3. Only
one of these two options is available on a given LCD/keypad module.
LCD/Keypad Module Jumper Configurations
Header
J5
Description
2.8 V
3.3 V
5V
Pins
Connected
1?2
3?4
n.c.
Factory
Default
×
Contrast
Adjustment
R2
D2 C1
C6
D1
U2
JP1
R3
U1
C4
U3
LCD1
C 9
C7
R4
R5
C11
C13
CR1
C12
3
4
J5
1
2
J5
Q1
R25
R26
R8
U4
J1
R11
R13
R14
R10
R9
R12
R15
J5
3
1
4
2
Q4
Q6
Q7
Q2
Q5
OTHER LP3500
3.3 V 2.8 V
n.c. = 5 V
U6
U5
J2
Q8
KP1
U7 C14
C17
RN1
DISPLAY
BOARD
J4
Figure C-3. LCD/Keypad Module Contrast Adjustments
NOTE: Older LCD/keypad modules that do not have a header at J5 or a contrast adjust-
ment potentiometer at R2 are limited to operate only at 5 V, and will not work with the
Prototyping Board for the RCM3360/RCM3370. The older LCD/keypad modules are
no longer being sold.
User ’s Manual
99
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