J5
J1
通讯接口
485通讯接口
VCC
U2
R0 VCC
RE
DE
1
2
3
4
8
7
6
5
IC2
RH5RL36AA
IC1
LM317
Text
B
A
R1
120
C1
0.1 C2
0.1
DI GND
VDD
U3
R1OUT
INVALID
T1IN
FORCEON
T1OUT
GND
EXT_VCC
MAX3485
CR1
9
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
D2
R1IN
V-
C2-
C2+
C1-
V+
1
2
3
C3
0.1
IN4148
R2
240
LCD显示
VCC
C4
0.1
C9
100uF/16V
C10
224
C11
C12
104
C8
C7
104
VCC
FORCEOFF
C1+
EN
VCC
470uF/16V
R3
510
MAX3221
R4
620
232通讯接口
U10
2
6N139
3
J4
TSS721通讯接口
U4
R49 R48
10K 15K
J_SPI
P4.5
P4.4
P4.3
P4.2
5
4
3
2
1
R47
10K
11
9
10
5
12
13
8
VDD
BAT
VS
PF
RX
RX1
TX
TX1
R10
1
BUSL1
D3
220
R11
VCC
2
VB
TSS721
4148
16
BUSL2
SPI接口
220
7
R46
10K
VCC
P16
P15
P14
P13
Q1
BC183
R45
R8
R9
C17
104
C16
C5
R43
串行EEPROM接口
2.2K
10uF
U6
U9
2
U1
1
2
3
4
8
7
6
5
A0 VCC
A1 WP
A2 SCL
GNDSDA
3
P12
1
330K
6N139
8
7
6
5
4
3
2
1
9
P4.2
16
15
14
13
12
11
10
9
R5
VCC
10 COM0
11 COM1
12 COM2
13 COM3
14
15
16
2
3
4
5
6
7
8
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
25
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
24LC01
P4.2/STE1/S39
COM0
P5.2/COM1
P5.3/COM2
P5.4/COM3
R03
P5.5/R13
P5.6/R23
P5.7/R33
DVcc2
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
24
23
22
21
20
19
18
17
16
15
14
13
12
330K
330K
R6
R7
C24
10uF/16V
+
R44
10K
R03
R13
R23
C27
104
CON1
P11
P1
J2
8
7
6
5
4
3
2
1
9
R33
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
10
11
12
13
14
15
16
DVcc2
DVss2
P4.1
P4.0
P3.7
DVss2
S2
P5.0
P5.1
P4.1/URXD1
P4.0/UTXD1
P3.7/TB6
P3.6/TB5
P3.5/TB4
S2
P5.0/S1
P5.1/S0
VREF-/VeREF-
VeREF+
XOUT/TCLK
XIN
VREF+
P6.7/A7/SVSin
P6.6/A6
P6.5/A5
P6.4/A4
MSP430F449
P3.6
P3.5
11 VREF-
10 VeREF+
9
8
7
6
5
4
3
2
1
XOUT
XIN
VREF+
P6.7
P6.6
P6.5
P6.4
P6.3
DVcc1
U5
R21
2K
LED2
LED1
P3.4/TB3
C18
P10
CON2
P2
P3
100
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
19
16
15
12
9
6
5
18
4
3
2
1
5
6
7
8
P3.4
P3.3
P3.2
P3.1
P3.3/UCLK0
P3.2/SOM I0
P3.1SIMO0
P3.0/STE0
P2.7/ADC12CLK
P2.6/CAOUT
P2.5/URXD0
P2.4/UTXD0
1
2
3
4
8
7
6
5
XOUT
XIN
R34
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
8D
7D
6D
5D
4D
3D
2D
1D
100
100
100
100
100
17
14
13
8
7
4
R35
R36
R37
R24
R26
P4.2
15P
1
2
3
4
5
6
7
8
9
S13
COM0
P5.2
P5.3
P5.4
R03
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
XTAL1
C19
P9
6
5
4
3
2
1
7
8
9
P3.0
P2.7
P2.6
1
2
3
4
5
6
12
11
10
9
8
7
P6.3/A3
DVcc1
2
3
P5.5
P5.6
P5.7
DVcc2
DVss2
P4.1
P4.0
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
P3.1
P3.0
P2.7
P2.6
P2.5
P2.4
R38
R39
100
100
9
10
11
9
10
11
15P
10 P2.5
11 P2.4
12
11
1
10
11
10
11
LE
OE
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
P4
SNJ74AHC373J (20)
S2
P5.0
P5.1
C26
104
VCC
C23
10uF
R19
10
U7
VREF-/VeREF-
VeREF+
19
16
15
12
9
6
5
2
18
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
8D
17
7D
14
6D
13
5D
8
XOUT
XIN
VREF+
P6.7
P6.6
P6.5
P6.4
P6.3
DVcc1
R14
10
C25
104
C22
A/D
10uF/16V
4D
7
12
11
10
9
8
7
6
5
4
3
3D
4
P5
P6
P7
P8
2D
3
1D
C13
104
11
C15
10uF/16V
LE
1
R20
5M
OE
VCC
CON4
SNJ74AHC373J (20)
2
1
LCD点阵显示接口
GND
J_LCD1
VCC
VCC
100K
P18
C20
R50
VCC
LCD
Timer_B捕获模式
1
2
19 20
15P
C28
104
XTAL2
R29
100K
Single in
D4
C21
15P
VCC
R30
Single in
P2.1
1K
D5
7
6
5
4
3
2
1
0
VCC
IN4148
R27
复位电路
100K
D1
IN4148
VCC
1
4
7
2
5
8
3
6
9
#
0
U8
R22
2K
R31 R32 R33
100K 100K 100K
7
8
9
10
11
12
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
GND
NC
NC
CS
SCK
S1
VCC
NC
NC
C14
104
INC
*
VCC
VCC
WP
RESET
?????????
NC
NC
NC
NC
NC
NC
NC
R40
R28
1K
KEY1
P1.0
P1.1
S0
1
2
3
4
5
6
7
8
9
10
P17
100K
NC
NC
NC
NC
NC
NC
NC
键盘扫描接口电路
LED
Timer_A比较模式
EXT_VCC VCC
H
a
f
M
L
b
DEC
J6
R41
1K
C6
104
11 10
9
8
7
5
6
P1.6
KEY2
3
2
1
NC
J3
R25
比较器欠压检测电路
AT45DB021
250K
LED3
BSL
FUN
外部FLASH DATA扩展接口
R42
1K
R23
2K
1
2
3
4
KEY3
e
d
dp
c
g
JATG
FET_1X仿真调试
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