User Guide
GD32350G-START
7 /13
4.6.
GD-Link
Figure 4-6 Schematic diagram of GD-Link function
L_USB_Ctr
C100
50V/20pF
C102
50V/20pF
Y101
HC-49S-8MHz
GND
L_NRST
+3V3
GND
R102
10K
Ω
C103
50V/0.1uF
R104
10K
Ω
GND
C105
50V/0.1uF
C106
50V/0.1uF
C107
50V/0.1uF
C108
50V/0.1uF
R101
1M
Ω
L_OSC_IN
L_OSC_OUT
L_OSC_IN
L_OSC_OUT
L_NRST
GND
+3V3
GND
1
2
3
4
JP100
4×1P2.54
+3V3
GND
MCU SWD
HSE
Reset
L_TMS/IO
L_TDI
L_TDO/SWO
L_TCK/CLK
L_USB_DP
L_SWDIO
L_SWDCK
L_SWDIO
L_SWDCK
+3V3
L_USB_DM
BOOT0
44
NRST
7
OSC_IN/PD0
5
OSC_OUT/PD1
6
PA0-WKUP
10
PA1
11
PA2
12
PA3
13
PA4
14
PA5
15
PA6
16
PA7
17
PA8
29
PA9
30
PA10
31
PA11
32
PA12
33
PA13/JTMS/SWDIO
34
PA14/JTCK/SWCLK
37
PA15/JTDI
38
PB0
18
PB1
19
PB2/BOOT1
20
PB3/JTDO
39
PB4/JNTRST
40
PB5
41
PB6
42
PB7
43
PB8
45
PB9
46
PB10
21
PB11
22
PB12
25
PB13
26
PB14
27
PB15
28
PC13-TAMPER-RTC
2
PC14-OSC32_IN
3
PC15-OSC32_OUT
4
VBAT
1
VDD_1
24
VDD_2
36
VDD_3
48
VDDA
9
VSS_1
23
VSS_2
35
VSS_3
47
VSSA
8
U0
GD32F103C8T6
L_TReset
L_LED1
L_LED2
L_LED1 LED0603
L_LED2 LED0603
R109
1K
Ω
R110
1K
Ω
GND
GND
R105
22R
R106
22R
R108
1M
Ω
C104
50V/4700pF
L_USB_DM
L_USB_DP
GND
R107
1.5K
Ω
L_USB_Ctr
VCC
1
D-
2
D+
3
ID
4
GND
5
SHELL
6
CN100
Mini_USB
4.7.
Extension
Figure 4-7 Schematic diagram of Extension Pin
Extension Pin
PA4
PA5
PA6
PA7
PA1
PB1
PB0
PA3
PA2
PB5
PB6
PB7
PA9
PA10
PA15
PB3
PB4
PA0
1
2
3
4
5
6
7
8
9
10
11
JP1
HEADER 11
1
2
3
4
5
6
7
8
9
10
11
JP2
HEADER 11
+3V3
GND
GND
GND
