User Guide
GD32L233K-START
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4.
Hardware layout overview
4.1.
Power supply
Figure 4-1. Schematic diagram of power supply
G
1
Vout
2
Vin
3
4
U4
AMS1117-3.3
E5
16V/10uF,AVX
E6
16V/10uF,AVX
GND
+3V3
LEDPWR
LED0603
R32
470
Ω
P1
SMD1210P050TF
+5V
+U5V
4.2.
Boot option
Figure 4-2.
Schematic diagram of boot option
R18
10K
Ω
1
2
3
JP4
BOOT0
GND
BOOT0
+3V3
R1
10K
Ω
1
2
3
JP5
BOOT1
GND
PB2
+3V3
4.3.
LED
Figure 4-3.
Schematic diagram of LED function
PA8
LED1
LED0603
LED
GND
R25
470
Ω
4.4.
KEY
Figure 4-4. Schematic diagram of Key function
PA0
R29
10K
Ω
+3V3
GND
KEY
K2
K-1102B
