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參數(shù)資料
| 型號： | 20-101-0358 |
| 廠商： | Rabbit Semiconductor |
| 文件頁數(shù)： | 77/94頁 |
| 文件大小： | 0K |
| 描述： | COMPUTER SINGLE-BOARD BL1820 |
| 標準包裝： | 1 |
| 系列： | Jackrabbit |
| 模塊/板類型： | 單板計算機模塊 |
| 適用于相關(guān)產(chǎn)品： | BL1820 |
| 產(chǎn)品目錄頁面： | 618 (CN2011-ZH PDF) |
| 其它名稱： | 316-1081 |
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User’s Manual
75
The thermistor has a nominal room-temperature
resistance of about 10 k
, which drops to about
6k
at 40°C. Once you solder the thermistor onto
the RT1 pads (see Figure B-5) on the Prototyping
Board, the A/D converter readings on AD0 will
change with temperature.
If the 10 k
potentiometer is removed, the change
in A/D converter readings with temperature will be
larger.
The LEDs can be mounted in positions DS5–DS8,
shown in Figure B-6, to display the complete status
for Parallel Port A.
The serial cable included in the parts bag can be
used to connect the Jackrabbit’s RS-232 outputs
from header J1 on the Prototyping Board to an
available PC serial port.
Unlike the CMOS-level signals on header J3, the
programming port on the Jackrabbit board, the sig-
nals on header J1 on the Prototyping Board are full
RS-232 level signals without needing the CMOS to
RS-232 converter that is present in the program-
ming cable. The RS-232 level signals are processed
via the MAX232 transceiver chip, U4, on the Jack-
rabbit board to Serial Ports B and C of the Rabbit
2000. The CMOS-level signals on the program-
ming port are connected to Serial Port A.
Figure B-5. Thermistor and
Potentiometer Locations
Figure B-6. LED Location
Thermistor
10 kW
Potentiometer
Buzzer
JP2
1
2
3
R3
R1
LS1
S1
DS1
RT
1
BZR
VCC
K
AD0
PE4
POT
HV0 +RAW
COIL(-)
PD0
GND
AD0
+
}
Existing
LEDs
}
Add
Dev Kit
LEDs
S2
S1
DS1
DS2
DS3
S4
S3
DS9
DS4
DS5
DS6
DS7
DS8
PWR
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