usbavrjtag 原理图.pdf
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Title
Number RevisionSize
A4
Date: 2008-10-27 Sheet of
File: F:\
开发板相关原理图
源程序
板载芯片资料
\..vr jtag.SchDocDrawn By:
AGND
28
X1
8
X2
7
RESET
4
PD2 (INT0)
11
PD3 (INT1)
12
PD4 (OC1B)
13
PD5 (OC1A)
14
PB0 (T0)
40
PB1 (T1)
41
PB2 (AIN0)
42
PB3 (AIN1)
43
PB4 (SS)
44
PB5 (MOSI)
1
PB6 (MISO)
2
PB7 (SCK)
3
(ADC0) PA0
37
(ADC1) PA1
36
(ADC2) PA2
35
(ADC3) PA3
34
(ADC4) PA4
33
(ADC5) PA5
32
(ADC6) PA6
31
(ADC7) PA7
30
PC0
19
PC1
20
PC2
21
PC3
22
PC4
23
PC5
24
(TOSC1) PC6
25
(TOSC2) PC7
26
PD7 (TOSC2)
16
PD6 (ICP)
15
AVCC
27
AREF
29
PD1 (TXD)
10
PD0 (RXD)
9
GND
39
VCC
38
GND
6
GND
18
VCC
5
VCC
17
U1
ATmega16
VCC
REGIN
7
VDD
6
GND
3
VBUS
8
D-
5
D+
4
CTS
23
RTS
24
RXD
25
TXD
26
DSR
27
DTR
28
DCD
1
RI
2
SUSPEND
11
SUSPEND
12
RST
9
U2
CP2102
V+
4
D-
3
D+
2
GND
1
USB-F
USB-F
D2.1
5.6V
R2.1
10
R2.2
10
C2.1
105
C2.2
104
R2.4
4.7K
VCC
R2.3
10
F1.1
500MA
VCC
R2.5
10K
VCC
VCC
C1.2
22P
C1.3
22P
Y1
7.3728M
/RST
R1.1
10K
VCC
C1.1
104
D1.1
1N4148
SW-RST
SW-PB
R1.2
10k
D1.2
1N4148
BOARDRST
MOSI
/RST
SCK
MISO
VCC
MOSI
MISO
SCK
DS2
JTAG LED
R1.7
1K
VCC
TCK
1
GND
2
TDO
3
VCC
4
TMS
5
RST
6
VCC
7
8
TDI
9
GND
10
JTAG
AVR-JTAGX10
TCK
TDO
TMS
TDI
/RST
VCC
VCC
R1.6
10K
VCC
R1.5
10K
R1.4
10K
R1.3
10K
VCC
C1
104
C2
104
C3
104
TDI
TDO
TCK
TCK
R2
100
R3
R4
R5
TMS
R17
100
R18
100
BOARDRST
R1
1K
DS1
TXD_TTL
TXD_TTL
RXD_TTL
RXD_TTL
1
2
3
4
5
6
7
8
9
11
10
COM
DB9A-M
TXD_PC
RXD_PC
13
10
11
8
12
9
14
7
C1+
1
C2+
4
GND
15
C1-
3
VCC
16
R1
D1
D2
R2
C2-
5
V-
6
V+
2
U3
MAX232
RXD_TTL
TXD_TTL
VCC
C3.1
105
C3.2
105
C3.3
105
C3.4
105
VCC
R6 R7 R8 R9
1
2
J1
CON2
MISO
4
VCC
1
SCK
3
MOSI
2
RST
5
GND
6
ISP
ISP 6PIN
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