NuMaker-HMI-N9H20
Mar. 15, 2022
Page
37
of 42
Rev 1.00
NUMA
K
E
R
-HMI
-N
9H20
US
E
R M
A
NU
A
L
Ma
k
er Nu
-m
be
d
NUC
47
2
Us
er Man
ua
l
3.8
NuMaker-N9H20 JTAG and UART Circuit
Figure 3-8 shows the NuMaker-N9H20 JTAG and UART circuit.
Figure 3-8 NuMaker-N9H20 JTAG and UART Circuit
VD33
VD33
C20
0.1u
VS
VS
L16
FB
C19
0.1u
TCK
VS
VD33
C21
0.1u
RX
VS
VS
E41
NSP4201
6
3
4
2
5
1
CH4
CH2
CH3
Vn
Vp
CH1
R61
33
CON11
ICE
HEADER10X2\BOX, 2.54mm 90 Degree
1
3
5
7
9
11
13
15
17
19
2
4
6
8
10
12
14
16
18
20
UVD33
TCK
TMS
Q4
2N3904
1
2
3
SW3
RESET
SW4-SMD
JTAG
IVD33
+
C16
10u
VS
C17
0.1u
VS
nTRST
VD18
VD33
nRESET
VD18
VS
TDI
R58
100K
CON12
D-SUB-9
DB9_FMALE
5
9
4
8
3
7
2
6
1
nTRST
RX
U9
ICL-232E
13
8
11
10
1
3
2
15
6
5
4
7
14
9
12
16
R1IN
R2IN
T1IN
T2IN
C1+
C1-
V+
GN
D
V-
C2-
C2+
T2OUT
T1OUT
R2OUT
R1OUT
VD
D
C15
0.1u
R59
10K
UART
L15
FB
TDI
C14
0.1u
TX
nRESET
nRESET
TX
VS
E42
NSP4201
6
3
4
2
5
1
CH4
CH2
CH3
Vn
Vp
CH1
TDO
RESET
VS
TMS
VS
VD33
TDO
RN6
33R
1
2
3
4
5
6
7
8
L17
FB
E2
ESD7371
C18
0.1u
RN5
10KR
1
2
3
4
5
6
7
8
R60
47K
