User Manual
GD32450I-EVAL
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51
4.20
Extension
Extension Pin
PE2
PE4
PE6
PC13
PC15
Pi9
OSC_IN
NRST
PE3
PE5
PC14
Pi10
OSC_OUT
Pi11
GND
GND
GND
GND
GND
PH12
GND
GND
GND
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
JP8
22X2P2.0
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
JP9
22X2P2.0
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
JP10
22X2P2.0
Pi8
PF0
PF1
PF2
PF3
PF4
PF5
GND
PF6
PF7
PF8
PF9
PF10
PC0
PC1
PC2
PC3
PA0
PA1
PA2
PH2
PH3
PH4
PH5
PA3
PA4
PA5
PA6
PA7
PC4
PC5
PB0
PB1
PB2
PF11
PF12
PF13
PF14
PF15
PG0
PG1
PE7
PE8
PE9
PE10
PE11
PE12
PE13
PE14
PE15
PB10
PB11
PH6
PH7
PH8
PH9
PH10
PH11
PB12
PB13
PB14
PB15
PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15
PG2
PG3
PG4
PG5
PG6
PG7
PG8
PC6
PC7
PC8
PC9
PA8
PA9
PA10
PA11
PA12
PA13
GND
PH13
PH14
PH15
Pi0
Pi1
NC
Pi2
BOOT0
GND
GND
GND
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
JP11
22X2P2.0
Pi3
GND
PA14
PA15
PC10
PC11
PC12
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PG9
PG10
PG11
PG12
PG13
PG14
PG15
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PE0
PE1
Pi4
Pi5
Pi6
Pi7
+3V3
+3V3
VBAT
+3V3
+3V3
+3V3
+3V3
+3V3
GND
GND
+3V3
+3V3
NC
NC
NC
NC
NC
NC
NC
4.21
GD-Link
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
R103
10K
Ω
GND
R109
1K
Ω
R110
1K
Ω
GND
GND
R105
22
Ω
R106
22
Ω
R108
1M
Ω
C104
50V/4.7nF
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
PA15
PA13
PA14
PB3
L_TMS/IO
L_TCK/CLK
L_TDO/SWO
L_TDI
L_TReset
NRST
GDLINK_5V
5
Routine use guide
5.1
GPIO_Runing_Led
5.1.1
DEMO Purpose
This demo includes the following functions of GD32 MCU:
Learn to use GPIO control the LED
Learn to use SysTick to generate 1ms delay
GD32450I-EVAL board has three LEDs. The LED1, LED2 and LED3 are controlled by
GPIO. This demo will show how to light the LEDs.