參數(shù)資料
型號(hào)： 20-101-0654
廠商： Rabbit Semiconductor
文件頁(yè)數(shù)： 17/110頁(yè)
文件大?。?/td> 0K
描述： INTERFACE OP6800 512K FLASH&SRAM
標(biāo)準(zhǔn)包裝： 1
系列： SBC
模塊/板類型： 單板計(jì)算機(jī)模塊
適用于相關(guān)產(chǎn)品： OP6800
其它名稱： 20-101-654
20-101-654-ND
10
MiniCom (OP6800)
2.2 Demonstration Program on Power-Up
A repeating sequence of graphics and messages in various languages will be displayed on
the LCD, and the LEDs will flash on and off in sequence when power is first applied to the
OP6800. Try pressing the buttons on the keypad. The LED immediately above that button
will light up, and if you pressed one of the keys in the top row of the keypad, the corre-
sponding LED on the Demonstration Board will light up. Similarly, if you press one of the
switches on the Demonstration Board, the corresponding LED on the Demonstration
Board and on the OP6800 will light up.
Note that the programming cable does not have to be connected for this demonstration.
This demonstration will be replaced by a new program when the programming cable is
attached and the new program is compiled and run. The demonstration is available for
future reference in the Dynamic C SAMPLES\LCD_KEYPAD\122x32_1x7 directory as
FUN.C
.
2.3 Display Contrast Adjustment
The LCD contrast is preset at the factory. If you need to adjust the contrast for optimum
display of graphics and messages, you may adjust the potentiometer at R4 located as
shown in Figure 5. Note that OP6800 units sold before 2004 did not have any provision to
adjust the contrast.
Figure 5. LCD Contrast Adjustment
KP1
J2
R30
LCD1
VBA
T
IN16
IN14
IN12
IN10
IN08
IN06
IN04
IN02
IN00
+RA
W
OUT10
OUT08
OUT06
OUT04
OUT02
OUT00
RxB
RxC
485
IN17
IN15
IN13
IN1
1
IN09
IN07
IN05
IN03
IN01
GND
+K
OUT09
OUT07
OUT05
OUT03
OUT01
GND
TxB
TxC
+485
D6
RP4
C17
R32
RN1
RP3
RP2
RP1
C13
C24
RP5
C1
1
C12
C14
C15
C16
C18
C19
C20
C21
C22
C23
R14
Q6
D10
R15
C40
D14
C36
U4
C39
J3
C41
U6
C37
U3
C35
C45
U7
C42
R31
C43
R29
C38
U5
R28
C33
R24
R23
C34
R25
R22
R27
R26 C44
R16
Q7
R17
Q8
R18
Q9
R19
Q10
R20
Q11
R21
Q12
D8
D7
JP1
R11
R13
Q5
D12
D11
R5
R12
R6
U1
R2
C1
J1
R3
C6
C10
U2
C8 C9
D2
C2
C3
C4
C5
D5
D4
D3
Q1
Q2
Q3
Q4
R8
C25
C26
RP9
R7
R9
R10
C27
D9
C32
C29
C28
C30 C31
RP6 RP7 RP8
D13
C7
R4
Contrast
Adjustment
J1
R2
C3
D2 R7
C27
R8
R36
RT
1
R41
R37
R38
D1
R39
Y2
C2
C1
U8
U7
U3
U6
C7
GND
EGND
DS2
LNK
ACT
DS1
R19
Q3
Q4
Q5
Q2
R1
Y1
C4 C17
C8
R9
R13
R11
U1
BT1
R1
5
C12
R17
R20
C13
Y3
R16
R22
R21
C14
R18
C25
C28
D3
J2
JP4
JP3
JP1
JP6
C30
JP2
JP5
C29
U2
Flash
EPROM
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