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2.2.2 Connect Programming Cable
The programming cable connects the RCM3750 to the PC running Dynamic C to down-
load programs and to monitor the RCM3750 module during debugging.
Connect the 10-pin connector of the programming cable labeled
the RCM3750 as shown in Figure 3. Be sure to orient the marked (usually red) edge of the
cable towards pin 1 of the connector. (Do not use the
normal serial connection.)
Colored
edge
R5
R6
Blue
shrink wrap
C27
R25
R26
R27
R28
R29
Figure 3. Connect Programming Cable and Power Supply
NOTE: Be sure to use the programming cable (part number 101-0542) supplied with this
Development Kit—the programming cable has blue shrink wrap around the RS-232 con-
verter section located in the middle of the cable. The simplified programming cable and
adapter board that are supplied with the Ethernet Connection Kit may also be used as
shown in the inset diagram above. Programming cables from other Rabbit Semiconduc-
tor kits are not designed to work with RCM3750 modules.
Connect the other end of the programming cable to a COM port on your PC.
NOTE: Some PCs now come equipped only with a USB port. It may be possible to use
an RS-232/USB converter (Part No. 540-0070) with the programming cable supplied
with the RCM3750 Development Kit. Note that not all RS-232/USB converters work
with Dynamic C.
User's Manual
RXC TXC RXE
C1
R8
R7
J2
C2
R9
IR1
JP1
J1
R1
GND
R2
GND
C5
R3
C6
/IOWR
/IORD
GND JP2
R4
PE7
PB5
PB4
PB3
C4
U4
PB2
PA0
U3
C3
PA1
C7
R11
R12
C11
PA3
R13
PA5
PA6
PA7
PB0
J5
TCM_SMT_SOCKET
PB7
/RES
PF0
+5V
PF1
PF4
PF5
PF6
PF7
PC1/PG2
PC3/
PC0_TXD
PG3
PC2
PE5
R16
TXC
PE4
PE1
L2
C21
C22
R18 R19
PE0
PG7_RXE
R20
R21
PG6
C26
PD4
TXE
R22
C23
PD5
VBAT
R23
C24
C25
CX1
CX2
CX3
U7
RP1
JP4
U8
CX4
R24
UX1
C28
CX5
JP5
JP7
JP6
CX6
CX7
R30
R31 R32 R33 R34
R35 R36
CX8
JP8
J7
C29
C35
UX2
THERMISTOR
CX9
R39 R40
R41 R42
CONVERT
CX11
CX10
DS1
DS3
DS2
J8
R47
R45
R46
R49
RESET
S1
S2
S3
connector, which is used for a
DIAG
C14
U1
C19
C15
D1
C12
D2
C13
L1
C16
C17
U2
C18
U6
U5
R14
R15
BT1
LCD1JA
LCD1JB
LCD1JC
to header J2 on
PROG
J4
DCIN
9
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