96
RabbitCore RCM3365/RCM3375
B.4.8 Other Prototyping Board Modules
An optional LCD/keypad module is available that can be mounted on the Prototyping
Board. The signals on headers LCD1JB and LCD1JC will be available only if the LCD/
keypad module is installed. Refer to Appendix C, “LCD/Keypad Module,” for complete
information.
Rabbit’s SF1000 series serial flash may be installed in the socket labeled J11. The J11
interface is enabled in software by setting PD2 = 0. Header JP3 must have pins 2–3 jum-
pered when using the J11 interface. Note that the RabbitNet port and the J11 interface can-
not be used simultaneously.
B.4.9 Quadrature Decoder
Four quadrature decoder inputs are available on screw-terminal header J5. To use the PF0
input from the Rabbit microprocessor, which goes to the QD1B input, remember to recon-
figure the jumper on header JP3 to jumper pins 1–2.
Additional information on the use of the quadrature Decoders on Parallel Port F is pro-
vided in the
Rabbit 3000 Microprocessor User’s Manual
.
B.4.10 Stepper-Motor Control
The Prototyping Board can be used to demonstrate the use of the RCM3365/RCM3375 to
control a stepper motor. Stepper motor control typically directs moves in two orthogonal
directions, and so two sets of stepper-motor control circuits are provided for via screw-
terminal headers J3 and J4.
In order to use the stepper-motor control, install two Texas Instruments L293DN chips at
locations U2 and U3 (shown in Figure B-10). These chips are readily available from your
favorite electronics parts source, and may be purchased through our
as part
number 660-0205.
Figure B-10. Install Four-Channel Push-Pull Driver Chips
+B
KL
T
/CS
LE
D1
LE
D3
LE
D5
GN
D
GN
D
A2
A0
D1
D3
D5
D7
RABBITNET
R44
C28
C27
R43
R46
C30
C29
R45
Q5
R48
R47
DS7RELA
Y
NO
1 C
OM
1 N
C1 N
O2
CO
M2
NC
2
K 1
K E Y PA D D I S P L AY B O A R D
D 8
L C D 1 J B
L C D 1 J C
+V
/RE
S
LE
D0
LE
D2
LE
D4
LE
D6
GN
D
A3
A1
D0
D2
D4
D6
LCD1JA
J16
BD
0
BD
1
BD
2
BD
3
BD
4
BD
5
BD
6
BD
7
J15
BA
0
BA
1
BA
2
BA
3
LC
D
/CS
RELA
Y RA
TED
0.5
A @ 30 V
J17
U12
U11
R42
R41
C20
C19
R40
R39
SE
RIA
L F
LA
SH
/
MO
DE
M
J7
R2
R7
R3 R4 R5 R6
R9
R8 U6
R10
C6
C1
D1
J2
J1
J4
J6
GND IN3 IN2 IN1
IN0 +5V
+5V
QD2A
Q
D2B Q
D1
A Q
D1
B GND
J5
VM
B
MDB1
MDB2
MDB3
MDB4
VMB+
VMA+
MDA1
MDA2
MDA3
MDA4
VMA
J3
C2
JP1
C3
JP2
GND
GND
VBT
/RES
SM0
/IOWR
PG5
PG7
PE1
PE4
PE6
PF7
PF5
PB7
PB5
PB3
PB0
J8
NC
+3.3 V
VRAM
SMODE1
/IORD
PG4
PG6
PE0
PE3
PE5
PB6
PB4
PB2
/RES_OUT
PF
4
PF
6 P
E7
RCM3300
PROTOTYPING
BOARD
S1
RESET
J9
S2
S3
ACT
PD7
PD3
PD5
PG3
PG1
PC7
PC5
PC3
PC1
PF0
PF2
PA0
PA2
PA4
PA6
STAT
LINK
PD6
PD2
PD4
PG2
PG0
PC6
PC4
PC2
PC0
PF1
PF3
PA1
PA3
PA5
PA7
GND
JA
JB
POWER
GN
D
+D
C
GN
D
DS
1
R1
GND
+DC
D2
C8
L1
R11
JP
3
R12
C9
C10 C11
C12
JP4
J10
RP1
RP2
R14
C5
BT1
C13
U5
R16
R15
R17
00
01
02
03
04
05
06
07
OUT
OUT
C4
R13
U1
U2
L293D
H-DRIVER
L293D
H-DRIVER
U8
R25 R26
R27 R28
J14
C24
U10
R38
R37
R35
C26
JP5
R36
C23
C21
U9
C22
J13
R33 R34
C17 C
18
UX5
UX1
SO20W
UX2
SO20W
DX2
C25
J12
R50
Q6
R49
D4
D5
D6
D7
GND
HO
4
HO
3
HO
2
HO
1
R29
R30
R31
R32
CORE
DS2 DS3 DS4 DS5 DS6
TxE RxE GND TxF RxF 485+ GND 485
Q1
Q2
Q3
Q4
C16
R24
R23
R22
R21
CORE MODULE
GND/EGND
U4
GND
GND
+3.3 V
+5 V
+3.3 V
+5 V
U3
UX4
DX1
RX16
RX17
RX13
RX14
RX18
RX15
PF0_CLKD
PF0_QD
J11
C7
U7
R18
R19
R20
C14 C15
CX1
CX2
R5
5
R5
6
R5
7
R5
8
R6
3
R6
4
R6
5
R6
6
R59
R62
R60 R61
R52 R53
R51
R54
SO
T23-6
SO
T23-6
R67
R68
R69
R70
DS2
R35
R36
R37
R38
R43
DS4
U13
C81
C78
C74
R1
R14
R15
R26
R27
R13
U2
R12
R1
1
J1
R10
C1
C6
R8
C10
C11
C15
C19
C20
C24
C28
R17
C35
C77R79
C72
C70
C71
C80
C82
R31
R53
R54
R44
C58
C34R20
R21
C36
R25
C27
C21
C18
C12C13
C9
U3
R7
C2
C3
R6
Y1
R9
R84
C4
R2
R5
U1
C5
R80
R85
R70R86
R64
R77
R50
R29
JP9
R59
C104
U5
C67
R45
C14
U6
R19
U4
R18
R22
JP6
JP7
JP8
JP4
JP5
C22
J6
L4
C79
L1
C42
R81
C86
C76
J2
R30
R82
Y2
Q2
R96
R67
C105
DS3
USR
FM
LINK
ACT
DS1
C61
SPE
ED
R23
U16
R4
L2
Summary of Contents for RCM3365
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