User`s manual

User’s Manual 77
B.4 Using the Prototyping Board
The Prototyping Board is actually both a demonstration board and a prototyping board.
As a demonstration board, it can be used to demonstrate the functionality of the RCM3400
right out of the box without any modifications to either board.
The Prototyping Board comes with the basic components necessary to demonstrate the
operation of the RCM3400. Two LEDs (DS1 and DS2) are connected to PD6 and PD7,
and two switches (S2 and S3) are connected to PD4 and PD5 to demonstrate the interface
to the Rabbit 3000 microprocessor. Reset switch S1 is the hardware reset for the RCM3400.
The Prototyping Board provides the user with RCM3400 connection points brought out con-
veniently to labeled points at header J1 and J3 on the Prototyping Board. Although header J1
is unstuffed, a 2 × 30 header is included in the bag of parts. RS-485 signals are available on
header J4, and RS-232 signals are available on header J5 (Serial Ports C and D) and header
J6 (Serial Ports E and F). A header strip at J5 allows you to connect a ribbon cable, and a 2 × 5
header is included in the bag of parts for optional installation at J6. The pinouts for these
locations are shown in Figure B-4.
Figure B-4. Prototyping Board Pinout
J6
TxF
RxF
RxE TxE
GND
RxD TxD
GND
TxC
RxC
J5
J4
PA0
PA2
PA4
PA6
PB1
PB3
PB5
PB7
PC1
PC3
PC7
/IOWR
SMODE1
PD0
PD5
PD7
PE1
PE4
PE6
PF0
PF4
PF6
PG0
PG2
PG4
PG6
/RES OUT
+3.3 V
VBAT
GND
PA1
PA3
PA5
PA7
PB2
PB4
PB6
PC0
PC2
PC6
/IORD
STAT
SMODE0
PD4
PD6
PE0
PE2
PE5
PE7
PF1
PF5
PF7
PG1
PG3
PG5
PG7
RESET IN
GND
+3.3 V
GND
J1
J3
RS-485 GND RS-485+
RCM3400
Non-Analog
Signals
RS-232
RS-232
ANALOG_GND
ADC_IN0 ADC_IN1 ADC_IN2 ADC_IN3 ADC_IN4 ADC_IN5 ADC_IN6
THERM_IN7
ANALOG_GND
CONVERT
VREF
Analog
Inputs
RS-485