Rev. 1.30
10 of 34
November 13, 2020
e-Link32/e-Link32 Pro User’s Guide
1 Overview
USB Enum
Error
Busy
PA9
PA8
PA7
PA5
PA3
PA2
PB5
PB6
PB7
IC
E
_
n
R
ESET
IC
E
_
n
R
ESET
PB0
PB1
PA1
3
PA1
4
IC
E
_
n
R
ESET
S
W
DCL
K
S
WO
PA1
1
n
R
ESET
PA0
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA1
0
PA1
1
PA1
2
PA1
3
PA1
4
PB0
PB1
PB2
PB3
PB4
PA6
PB5
SW
D
IO
PB1
5
PB1
4
PA1
2
PB1
3
PB1
2
PB2
PA1
PA1
5
PB6
PB7
PB1
5
PB1
4
PB1
3
PB1
2
+
3
V3
+
3
V3
+
3
V3
+
3
V3
+
3
V3
U
SB_
5
V
U
SB_
5
V
+
3
V3
+
3
V3
+
3
V3
+
3
V3
+
3
V3
+
3
V3
+
3
V3
V
CCB
A
RM
_
V
CC
+
3
V3
+
3
V3
V
CCB
V
CCB
AR
M
_
VC
C
+
3
V3
+
3
V3
C
26
0.
1uF
PO
W
ER
N.
C.
C
27
4.
7uF
C9
0.
1uF
+
C
14
10uF
U4
S
N
7
4
A
V
C
1T
45
1
5
3
4
6
2
V
CCA
D
IR
A
B
V
CCB
GN
D
R
2
33R
C
12
4.
7uF
C
15
47pF
R
27
10K
R
22
10K
C5
0.
1uF
R1
2
N.
C.
5V
D-
D+
ID
G
U
SB M
IN
I B C
o
n
n
e
c
to
r
J1
1
2
3
4
7
5
6
8
9
U5
S
N
7
4
A
V
C
1T
45
1
5
3
4
6
2
V
CCA
D
IR
A
B
V
CCB
GN
D
R
17
10K
R9
100K
R4
1.
5K
R
3
33R
C
24
0.
1uF
C
18
0.
1uF
C
25
0.
1uF
C
16
47pF
C6
0.
1uF
R1
1M
C4
0.
1uF
U2
H
T
4
5B
0K
1
16
3
4
5
6
13
10
11
12
14
9
7
S
DI
S
DO
S
CK
S
CS
C
LK
I
INT
UDP
V
DD
V
DD
UDN
V
33O
VSS
VSS
J3
1
2
3
4
5
D1
B
lue-
le
d
C
2
20pF
R
18
10K
R
10
10K
C
13
0.
1uF
R
23
10K
R
14
0R
U
3
H
T
1117-
3
3
1
3
2
GND
IN
OU
T
R5
N.
C.
C
3
20pF
R
19
10K
D2
R
ed-
led
C
20
0.
1uF
R
16
0R
R
13
100R
U6
S
N
7
4
A
V
C
1T
45
1
5
3
4
6
2
V
CCA
D
IR
A
B
V
CCB
GN
D
R
6
470R
C1
4.
7nF
R
24
100R
C
21
0.
01uF
b
e
c
Q2
M
M
B
T
9012/
M
M
B
T
8
5
5
0
1
2
3
+
C
19
10uF
R
20
100R
Y1
12.
000M
H
Z
R
7
470R
D3
G
reen-
le
d
R
25
100R
J2
1
2
3
4
5
6
7
8
9
10
C
22
0.
1uF
C
23
0.
1uF
R
28
1M
C
11
0.
1uF
R
8
470R
R
11
0R
R
26
100R
R
15
0R
S1
R
ESET
2
1
4
3
R
21
1.
5K
b
e
c
Q1
M
M
B
T
9013/
M
M
B
T
8
0
5
0
1
3
2
U1
H
T
32F
12
5
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
VSSA_
2
P
A0
/AD
C
_
IN
0
/G
T
1
_
ET
I/G
T
0
_
C
H
3
PA1
/AD
C
_
IN
1
/G
T
0
_
C
H
2
P
A
2
/A
DC_
IN2
/UR_
DCD/
G
T
0
_
CH1
P
A
3
/A
DC_
IN3
/UR_
DS
R/
G
T
0
_
CH0
PA4
/AD
C
_
IN
4
/U
R
_
D
T
R
/SPI_
M
O
SI
PA5
/AD
C
_
IN
5
/U
R
_
R
I/SPI_
M
ISO
PA6
/AD
C
_
IN
6
/U
R
_
R
T
S/T
XE/SPI_
SC
K
PA7
/AD
C
_
IN
7
/U
R
_
C
T
S/SC
K/SPI_
SEL
P
A
8
/UR_
RX
PA9
-BO
O
T
0
/U
R
_
T
X
PA1
0
-BO
O
T
1
VC
PW
R
V
L
D
OOU
T
VL
D
O
IN
VSSL
D
O
nR
S
T
VBAT
XT
AL
3
2
KIN
/PB8
XT
AL
3
2
KO
U
T
/PB9
R
T
C
O
U
T
/PB1
0
-W
AKEU
P/G
T
0
_
ET
1
PB1
1
/C
KO
U
T
/G
T
0
_
C
H
3
PA1
1
/I2
C
_
SC
L
PA1
2
/I2
C
_
SD
A
SW
D
IO
/PA1
3
/G
T
0
_
C
H
2
SW
C
L
K/PA1
4
/G
T
0
_
C
H
1
T
R
AC
ESW
O
/PA1
5
/G
T
0
_
C
H
0
V
D
D
33_2
V
S
S
33_2
V
S
S
33_3
PB1
2
/SPI_
SEL
/U
R
_
D
C
D
/G
T
1
_
C
H
3
PB1
3
/SPI_
SC
K/U
R
_
D
SR
/G
T
1
_
C
H
2
PB1
4
/SPI_
M
ISO
/U
R
_
D
T
R
/G
T
1
_
C
H
1
PB1
5
/SPI_
M
O
SI/U
R
_
R
I/G
T
1
_
C
H
0
XT
AL
IN
/PB0
XT
AL
O
U
T
/PB1
V
DD1
8
VPL
L
P
B
2/
C
N
0/
G
T
1_C
H
0
PB3
/C
P0
/G
T
1
_
C
H
1
PB4
/AO
U
T
0
/U
R
_
R
T
S/T
XE/G
T
1
_
C
H
2
P
B
5/
C
N
1/
G
T
1_C
H
3
PB6
/C
P1
/G
T
1
_
ET
I
PB7
/AO
U
T
1
/U
R
_
C
T
S/SC
K/G
T
0
_
ET
I
V
D
D
33_1
V
S
S
33_1
V
DDA
VSSA
J
4
N.
C.
1
2
3
Figure 3. e-Link32 v1.0