M-Station Baseboard
Row 2 is used to connect to several of the M-Station’s development hardware resources with CPU
signals brought in to row 1.
Table 4.
Row 2 Hardware Resource Allocation
Pin(s) Connected
to
Resource
1
RS-232 RxD
UART transceiver interface
2 RS-232
CTS
3 RS-232
TxD
4 RS-232
RTS
5
Switch 2
General-purpose switch
6 Switch
3
7
Potentiometer
Input to an analog input of the CPU
8 Open
9
SCL input of EEPROM
10
SDA input of EEPROM
11 to 16
Open
17 to 24
LED 1
General-purpose numeric display
25 to 32
LED 2
3.7.5
Rows 8 and 12
Row 8 is used for power and ground and LCD segment signals.
Table 5.
Row 8 Hardware Resource Allocation
Pin(s) Connected
to
Resource
1 to 4, 17 to 20
GND
System ground (GND)
9 to 14
V
DE
(V
DD
power of micro-board)
23 to 32
LCD segment signals
Row 12 is used to connect the LCD module to row 8 pins 23 to 32 for the MCU’s CPU, which has LCD
segment drivers. Otherwise, row 8 pins 23 to 32 and row 12 are left for general use.
3.7.6 Row
0
Row 0 is a three-pin "jumper post" connected to an optional CAN transceiver. CAN transceiver
footprints and a place for mounting DB9 are provided as optional features.
11
Содержание M-Station
Страница 4: ...M Station Baseboard ii...
Страница 8: ...M Station Baseboard vi...
Страница 11: ...M Station Baseboard 3 HARDWARE Figure 1 M Station Baseboard Figure 2 Board Layout 3...
Страница 81: ...M Station Baseboard 73...