User Manual
GD32103E-EVAL
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/
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3
Getting started
The EVAL Board uses Mini USB connecter to get power, the hardware system power is
+3.3V. A Mini USB cable and a J-Link tool are necessary to down programs. Select the
correct boot mode and then power on, the LED1 will turn on, which indicates the power
supply is ready.
4
Hardware layout overview
4.1
Power supply
Figure 1 Schematic diagram of power supply
G
1
Vout
2
Vin
3
4
U2
LM1117-3.3
E1
16V/10uF,AVX
E2
16V/10uF,AVX
C17
50V/0.1uF
C18
50V/0.1uF
+3V3
LED1
LED0603
R7
470
Ω
1
TP1
TP +3V3
+U5V
P1
SMD1210P005TF
5
S2
3
S
2
S1
1
4
SW1
SW-SPDT
1
3
2
CN1
DC-10B
GND
+5V
VCC
+5V
4.2
Boot option
Figure 2. Schematic diagram of boot option
R4
10K
Ω
1
2
3
JP2
BOOT0
GND
R5
10K
Ω
1
2
3
JP3
BOOT1
GND
BOOT0
PB2
+3V3
+3V3
Table 2. Boot configuration
BOOT1
BOOT0
Boot Mode
Any
2-3
User memory
2-3
1-2
System memory
1-2
1-2
SRAM memory
