RabbitCore RCM3305, User Manual

Page: 100 / 160

94 RabbitCore RCM3305/RCM3315
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
cannot 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 RCM3305/RCM3315 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 Rabbit’s
Web store 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
R1
J1
RP1
Y1
C4
C6C
7 R5
R6
U1
C1 R2 C2C
3R 3
Q1
C8C9
C5
R7
C12C1
3
C17 C18
U3
C26
C10
R9
R8
C11
C16 C15 R13
C20 C19
C25
C24
C35
R17
U4
R14 R15
L1
C23
C31
C32
C33
R16
U5
C34
Y2
R44
C74 C78
U13
C81
R60
R61
R62
R63
R64
C58
R11 R12
U2
C14
R10
RCM33XX
DS1
USR SF
LINK
ACT DS2
DS3
J2
R35
R36
R37
R38
C21 C22
C27
C28
R23
R21 C30
R20 R18 R22
R19
C29
JP6
JP7 JP8 JP4 JP5
R45
C43
C79
C71
C72
C61
R53
R54
R31
C82
C80
C70
R30
R82
R81
C86
C42
C77R7
9 L2
C90
C76 L3
R50
SPE
ED
DS4