GigaDevice Semiconductor GD32450I-EVAL User manual

GigaDevice Semiconductor Inc.
GD32450I-EVAL
User Manual

User Manual
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Table of Contents
目录
Table of Contents............................................................................................................................1
List of Tables...................................................................................................................................3
1Summary ..................................................................................................................................4
2Function Pin Assign................................................................................................................4
3Getting started.........................................................................................................................8
4Hardware layout overview.......................................................................................................9
4.1 Power .................................................................................................................................9
4.2 Boot....................................................................................................................................9
4.3 LED.....................................................................................................................................9
4.4 KEY ..................................................................................................................................10
4.5 USART .............................................................................................................................10
4.6 ADC..................................................................................................................................11
4.7 DAC..................................................................................................................................11
4.8 I2S....................................................................................................................................11
4.9 I2C....................................................................................................................................12
4.10 SPI....................................................................................................................................12
4.11 CAN..................................................................................................................................12
4.12 Ethernet............................................................................................................................13
4.13 SDIO.................................................................................................................................13
4.14 NAND Flash......................................................................................................................14
4.15 SDRAM.............................................................................................................................14
4.16 DCI ...................................................................................................................................15
4.17 LCD ..................................................................................................................................15
4.18 USBFS..............................................................................................................................16
4.19 USBHS.............................................................................................................................16
4.20 Extension..........................................................................................................................17
4.21 GD-Link ............................................................................................................................17
5Routine use guide..................................................................................................................17
5.1 GPIO_Runing_Led ...........................................................................................................17
5.2 GPIO_Keyboard_Polling_mode........................................................................................18
5.3 GPIO_KeyBoard_Interrupt_mode.....................................................................................18
5.4 USART_Printf...................................................................................................................19
5.5 USART_Echo_Interrupt_mode.........................................................................................19
5.6 USART_DMA ...................................................................................................................20
5.7 ADC_Temperature_Vrefint_Vbat ......................................................................................21

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5.8 ADC0_ADC1_Follow_up_mode.......................................................................................22
5.9 ADC0_ADC1_Regular_Parallel_mode.............................................................................23
5.10 DAC_Output_Voltage_Value ............................................................................................24
5.11 I2C_EEPROM ..................................................................................................................24
5.12 SPI_QSPI_Flash ..............................................................................................................26
5.13 I2S_Audio_Player.............................................................................................................27
5.14 EXMC_SDRAM................................................................................................................28
5.15 EXMC_SDRAM_DeepSleep.............................................................................................28
5.16 EXMC_NandFlash............................................................................................................29
5.17 SDIO_SDCardTest ...........................................................................................................30
5.18 CAN_Network...................................................................................................................31
5.19 RCU_Clock_Output..........................................................................................................32
5.20 CTC_Calibration...............................................................................................................32
5.21 PMU_sleep_wakeup.........................................................................................................33
5.22 RTC_Calendar..................................................................................................................33
5.23 TIMER_Breath_LED.........................................................................................................34
5.24 TLI_IPA.............................................................................................................................35
5.25 DCI_OV2640....................................................................................................................35
5.26 TRNG_Get_Random........................................................................................................36
5.27 ENET................................................................................................................................37
5.28 USB_Device.....................................................................................................................44
5.29 USB_Host.........................................................................................................................47
6Revision history.....................................................................................................................51

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List of Tables
Table 1 Function pin assign........................................................................................................................... 4
Table 2 Revision history............................................................................................................................... 51

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1 Summary
GD32450I-EVAL uses GD32F450IGH6 as the main controller. It uses Mini USB interface
or DC-005 connector to supply 5V power. SWD, Reset, Boot, User button key, LED,
CAN, I2C, I2S, USART, RTC, LCD, SPI, ADC, DAC, EXMC, CTC, SDIO, DCI, ENET,
USBFS, USBHS, GD-Link and Extension Pins are also included. For more details
please refer to GD32450I-EVAL-V1.1 schematic.
2 Function Pin Assign
Table 1 Function pin assign
Function
Pin
Description
LED
PE2
LED1
PE3
LED2
PF10
LED3
RESET
K1-Reset
KEY
PA0
K2-Warkup
PC13
K3-Tamper
PB14
K4-User key
USART0
PA9
USART0_TX
PA10
USART0_RX
ADC
PC3
ADC012_IN13
DAC
PA4
DAC_OUT0
I2C
PB6
I2C0_SCL
PB7
I2C0_SDA
SPI
PG10
SPI5_IO2
PG11
SPI5_IO3
PG13
SPI5_SCK
PG14
SPI5_MOSI
PG12
SPI5_MISO
PI8
SPI5_CS
I2S
PA6
I2S1_MCK
PI1
I2S1_CK
PI0
I2S1_WS
PC1
I2S1_SD
CAN
PB8
CAN0_RX
PB9
CAN0_TX
Nand Flash
PD0
EXMC_D2
PD1
EXMC_D3
PD4
EXMC_NOE
PD5
EXMC_NWE

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PD6
EXMC_NWAIT
PD7
EXMC_NCE1
PD11
EXMC_CLE
PD12
EXMC_ALE
PD14
EXMC_D0
PD15
EXMC_D1
PE7
EXMC_D4
PE8
EXMC_D5
PE9
EXMC_D6
PE10
EXMC_D7
SDRAM
PC2
EXMC_SDNE0
PC5
EXMC_SDCKE0
PD0
EXMC_D2
PD1
EXMC_D3
PD8
EXMC_D13
PD9
EXMC_D14
PD10
EXMC_D15
PD14
EXMC_D0
PD15
EXMC_D1
PE0
EXMC_NBL0
PE1
EXMC_NBL1
PE7
EXMC_D4
PE8
EXMC_D5
PE9
EXMC_D6
PE10
EXMC_D7
PE11
EXMC_D8
PE12
EXMC_D9
PE13
EXMC_D10
PE14
EXMC_D11
PE15
EXMC_D12
PF0
EXMC_A0
PF1
EXMC_A1
PF2
EXMC_A2
PF3
EXMC_A3
PF4
EXMC_A4
PF5
EXMC_A5
PF11
EXMC_NRAS
PF12
EXMC_A6
PF13
EXMC_A7
PF14
EXMC_A8
PF15
EXMC_A9
PG0
EXMC_A10

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PG1
EXMC_A11
PG2
EXMC_A12
PG4
EXMC_A14
PG5
EXMC_A15
PG8
EXMC_SDCLK
PG15
EXMC_NCAS
PH5
EXMC_SDNWE
SDIO
PD2
SDIO_CMD
PC12
SDIO_CK
PC8
SDIO_D0
PC9
SDIO_D1
PC10
SDIO_D2
PC11
SDIO_D3
DCI
PB6
DCI_I2C0_SCL
PB7
DCI_I2C0_SDA
PA4
DCI_HSYNC
PG9
DCI_VSYNC
PA6
DCI_PIXCLK
PA8
DCI_XCLK
PB9
DCI_D7
PB8
DCI_D6
PD3
DCI_D5
PC11
DCI_D4
PC9
DCI_D3
PC8
DCI_D2
PC7
DCI_D1
PC6
DCI_D0
LCD
PI3
LCD_Touch_PENIRQ
PF9
LCD_SPI4_MOSI
PF8
LCD_SPI4_MISO
PF7
LCD_SPI4_SCK
PF6
LCD_SPI4_NSS
PB15
LCD_PWM_BackLight
PH7
LCD_Touch_Busy
PH2
LCD_R0
PH3
LCD_R1
PH8
LCD_R2
PH9
LCD_R3
PH10
LCD_R4
PH11
LCD_R5
PH12
LCD_R6
PG6
LCD_R7

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PE5
LCD_G0
PE6
LCD_G1
PH13
LCD_G2
PH14
LCD_G3
PH15
LCD_G4
PI0
LCD_G5
PI1
LCD_G6
PI2
LCD_G7
PE4
LCD_B0
PG12
LCD_B1
PG10
LCD_B2
PG11
LCD_B3
PI4
LCD_B4
PI5
LCD_B5
PI6
LCD_B6
PI7
LCD_B7
PG7
LCD_CLK
PI10
LCD_HSYNC
PI9
LCD_VSYNC
Ethernet
PA1
ETH_RMII_REF_CLK
PA2
ETH_MDIO
PA7
ETH_RMII_CRS_DV
PG11
ETH_RMII_TX_EN
PG13
ETH_RMII_TXD0
PG14
ETH_RMII_TXD1
PC1
ETH_MDC
PC4
ETH_RMII_RXD0
PC5
ETH_RMII_RXD1
PA8
ETH_RMII_REF_CLK
USB_FS
PA9
USB_VBUS
PA11
USB_DM
PA12
USB_DP
USB_HS
PH4
USB_HS_ULPI_NXT
PI11
USB_HS_ULPI_DIR
PC0
USB_HS_ULPI_STP
PA5
USB_HS_ULPI_CK
PB5
USB_HS_ULPI_D7
PB13
USB_HS_ULPI_D6
PB12
USB_HS_ULPI_D5
PB11
USB_HS_ULPI_D4
PB10
USB_HS_ULPI_D3
PB1
USB_HS_ULPI_D2

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PB0
USB_HS_ULPI_D1
PA3
USB_HS_ULPI_D0
3 Getting started
The EVAL board uses Mini USB connecter or DC-005 connector to get power DC +5V,
which is the hardware system normal work voltage. Three kinds of different USB power
supply which are USB_FS, USB_HS_ULPI, GD-Link can be chosen through JP4. A
J-Link tool or GD-Link on board is necessary in order to download and debug programs.
Select the correct boot mode and then power on, the LED5 will turn on, which indicates
that the power supply is OK.
There are Keil version and IAR version of all projects. Keil version of the projects are
created based on Keil MDK-ARM 4.74 uVision4. IAR version of the projects are created
based on IAR Embedded Workbench for ARM 7.40.2. In Firmware folder, Addon and
Software Pack are used to add the devices, peripherals and others to IDE. During use,
the following points should be noted:
1. If you use Keil uVision4 to open the project, install the GD32F4xx_Addon.1.0.0.exe
which is in \Library\Firmware to load the associated files.
2. If you use Keil uVision5 to open the project, there are two ways to solve the "Device
Missing (s)" problem. One is to install GigaDevice.GD32F4xx_DFP.1.0.0.pack which is
in \Library\Firmware. In Project menu, select the Manage sub menu, click on the
“Version Migrate 5 Format...” menu, the Keil uVision4 project will be converted to Keil
uVision5 project. Then add “C:\Keil_v5\ARM\Pack\ARM\CMSIS\4.2.0\CMSIS\Include” to
C/C++ in Option for Target. The other is to install Addon directly. Select the installation
directory of Keil uVision5 software, such as C:\Keil_v5, in Destination Folder of Folder
Selection. Select the corresponding device in Device of Option for Target and add
“C:\Keil_v5\ARM\Pack\ARM\CMSIS\4.2.0\CMSIS\Include” to C/C++ in Option for Target.
3. If you use IAR to open the project, install IAR_GD32F4xx_Addon.exe which is in
\Library\Firmware to load the associated files.

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4 Hardware layout overview
4.1 Power
G
1
Vout 2
Vin
34
U2 AMS1086CD-3.3
E1
16V/10uF,AVX
C17
50V/0.1uF C18
50V/0.1uF
+3V3
LED5
LED0603
R7
470Ω
1
TP1
TP +3V3
P1
SMD1812P150TF/24
5
S2
3
S
2
S1
1
4
SW1
SS12D07VG4
1
3
2
CN1
DC-005
GND
VCC
+5V
GND
E2
16V/10uF,AVX
POWER
V_USB_5V
4.2 Boot
R4
10KΩ
1
2
3
JP2
BOOT0
GND
R5
10KΩ
1
2
3
JP3
BOOT1
GND
BOOT0
PB2
+3V3
+3V3
BOOT1
BOOT1
BOOT0
Boot Mode
Any
2-3
User memory
2-3
1-2
System memory
1-2
1-2
SRAM memory
4.3 LED
LED1
LED0603
LED2
LED0603
LED3
LED0603
R13
470Ω
R14
470Ω
R15
470Ω
LED
LED1
LED2
LED3
GND
PE2
PE3
PF10

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4.4 KEY
KEY1K2
K-1102B
R17
10KΩ
+3V3
GND
C28
50V/0.1uF
KEY2K3
K-1102B
R18
10KΩ
+3V3
GND
C29
50V/0.1uF
KEY3K4
K-1102B
R19
10KΩ
+3V3
GND
C30
50V/0.1uF
PA0PC13 PB14
KEY
Wakeup Tamper USER
4.5 USART
C1+
1V+ 2
C1-
3
C2+
4
C2-
5
V- 6
T2OUT 7
R2IN 8
R2OUT
9
T2IN
10 T1IN
11
R1OUT
12 R1IN 13
T1OUT 14
GND
15 VCC 16
U3
MAX3232CSE+
+3V3
GND
C23
50V/0.1uF
C25
50V/0.1uF
C24
50V/0.1uF
C22
50V/0.1uF
C2150V/0.1uF
GND
USART0_TX
USART0_RX
USART0_TX
1
6
2
7
3
8
4
9
5
J1
COM1
GND
1
2
3
JP5
HEADER 3
PA9
PA10
USB_FS_VBUS
Short JP5(2,3)for USB_FS function
RS232_TX0
RS232_RX0
Short JP5(1,2)for USART0 function
USART0
USART0_RX

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4.6 ADC
+3V3
GND
ADC
PC3VR1
10K
1
TP2
TP ADin
ADC012_IN13
4.7 DAC
DAC
DAC_OUT0GND 1
2
JP7
DAC
PA4
PA4 is anAFIO, please refer to DCI Schematic for rightconfig
4.8 I2S
PC1 is anAFIO, please refer to ETHNET Schematic for right config
Pi1
Pi0
I2S1_SD
I2S1_CK
I2S1_WS
I2S1_MCKPA6
PC1
Pi1LCD_G6
I2S1_CK Pi0LCD_G5
I2S1_WS PA6DCI_PIXCLK
I2S1_MCK
R43 0Ω
R44 0Ω
R55 0Ω
I2S
I2S1_MCK
I2S1_WS
I2S1_CK
I2S1_SD C27
50V/0.1uF GND
E7
16V/10uF,AVX
C34
50V/0.1uF
GND
E8
16V/10uF,AVX
GND
5
4
3
2
1
J2
HeadPhone
E4
16V/3.3uF,AVX
E6
16V/3.3uF,AVX GND
R91
10KΩ
R24
10KΩ
GND
GND
R25
470Ω
R54
470Ω
SDIN
1
SCLK
2
LRCK
3
MCLK
4
VQ
5FILT+ 6
AOUTL 7
GND 8
AOUTR 10
VA 9
U7
CS4344
+3V3

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4.9 I2C
A0
1
A1
2
A2
3
GND
4SDA 5
SCL 6
WP 7
VCC 8
U4
AT24C02C-SSHM-T
+3V3
GND
R10
4.7KΩ
R11
4.7KΩI2C0_SCL
I2C0_SDA
I2C
C26
50V/0.1uF GND
PB7
PB6
4.10 SPI
CS
1
SO
2
WP
3
GND
4SI 5
SCLK 6
HOLD 7
VCC 8
U5
GD25Q16BS
+3V3
GND
SPIFlash_CS
R21
10KΩ
+3V3 C32
50V/0.1uF GND
SPI5_MISO_IO1
SPI5_WP_IO2SPI5_MOSI_IO0 SPI5_SCK
SPI5_HOLD_IO3
Standard & Quad SPI Flash
SPI5_MOSI_IO0
SPI5_MISO_IO1
SPI5_WP_IO2SPI5_HOLD_IO3
SPI5_SCK
SPIFlash_CS
PG14
PG12
PG10
PG11
PG13
Pi8
1
2
3
JP12
HEADER 3
1
2
3
JP13
HEADER 3
1
2
3
JP20
HEADER 3
RMII_TX_EN
RMII_TXD0
RMII_TXD1
Short JP12(1,2) for Ethnet function
Short JP12(2,3) for SPI & TLI function
Short JP13(1,2) for Ethnet function
Short JP13(2,3) for SPI function
Short JP20(1,2) for Ethnet function
Short JP20(2,3) for SPI function
PG10 SPI5_#WP_IO2
LCD_B2
SPI5_#HOLD_IO3
PG12 SPI5_MISO_IO1
LCD_B1
LCD_B3
4.11 CAN
D
1
GND
2
VCC
3
R
4Vref 5
CANL 6
CANH 7
RS 8
U6
SN65HVD230
CAN0H
CAN0L
R22 0Ω
GND
R23
120Ω1
2
JP14
HEADER 2
CAN0_TX
CAN0_RX GND
+3V3 C33
50V/0.1uF
GND
CAN
PB9
PB8

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4.12 Ethernet
TX_CLK
1
TX_EN
2
TXD_0
3
TXD_1
4
TXD_2
5
TXD_3/SNI_MODE
6
PWR_DOWN/INT
7
NC 8
NC 9
NC 10
NC 11
NC 12
RD-13
RD+14
AGND 15
TD-16
TD+17
PFBIN1
18
AGND 19
NC 20
NC 21
AVDD33 22
PFBOUT
23
RBIAS
24
25MHz_OUT
25
LED_ACT/COL/AN_EN 26
LED_SPEED/AN127
LED_LINK/AN028
RESET_N
29
MDIO
30 MDC
31
IOVDD33 32
X2
33
X1
34
IOGND 35
DGND 36
PFBIN2
37
RX_CLK
38 RX_DV/MII_MODE
39
CRS/CRS_DV/LED_CFG
40
RX_ER/MDIX_EN
41
COL/PHYAD0
42
RXD_0/PHYAD1
43
RXD_1/PHYAD2
44
RXD_2/PHYAD3
45
RXD_3/PHYAD4
46
IOGND 47
IOVDD33 48
U8
DP83848CVV
+3V3 R32
2.2KΩRMII MODE
R33
1.5KΩ
+3V3
NRST
R40 2.2KΩ
+3V3
R41 4.87KΩ
GND
E3
16V/10uF,AVX C37
50V/0.1uF
C38
50V/0.1uF
C39
50V/0.1uF
GND
GND
+3V3
R38 2.2KΩ
R39 2.2KΩ
+3V3
R34
2.2KΩ
R35
2.2KΩ
R36
2.2KΩ
+3V3
TD+
1
4
TD-
2
RD+
3
5
RD-
6
L+
9
L-
10
R+
12
R-
11
GND113
GND214
JP16
HR911105A
GND
+3V3
R26
49.9Ω
R27
49.9ΩR28
49.9Ω
R29
49.9Ω
C36
50V/0.1uF
C35
50V/0.1uF
GND GND
R30
240Ω
R31
240Ω
C40
50V/0.1uF C41
50V/0.1uF C42
50V/0.1uF
+3V3
GND
PC4
PC5
PA1
MCO
RMII_TX_EN
RMII_TXD0
RMII_TXD1
RMII_RXD0 RMII_RXD1
RMII_CRS_DV RMII_MDC
RMII_MDIO
RMII_REF_CLK
RMII_TX_EN
RMII_TXD0
RMII_TXD1
RMII_RXD0
RMII_RXD1
RMII_MDC
RMII_MDIO
RMII_REF_CLK
RMII_CRS_DV
RP2
33Ω
RP3
33Ω
PA8
PA8 is an AFIO, refer to DCI schematic for right config
Ethernet
PA7
PA2
PG11
PG13
PG14
PG11、PG13、PG14 are AFIOs, please refer to SPI schematic for right config
1
2
3
JP17
HEADER 3
EXMC_SDCKE0
Short JP17(1,2) for Ethnet function
Short JP17(2,3) for SDRAM function
PC11
2
3
JP18
HEADER 3
Short JP18(1,2) for Ethnet function
Short JP18(2,3) for I2S function
I2S1_SD
4.13 SDIO
R37
10KΩ
R42
10KΩ
R45
10KΩ
R46
10KΩ
+3V3
+3V3
E5
16V/10uF,AVX
GND
PD2
PC12
SDIO_DAT3
SDIO_CMD
SDIO_CLK
SDIO_DAT0
SDIO_DAT1
SDIO_DAT3
SDIO_CMD
SDIO_CLK
SDIO_DAT0
SDIO_DAT1
SDIO_DAT2D2 1D3
2CMD
3VCC
4CLK
5GND
6D0
7D1
8CD
9JP32
TF_CARD_SOCKET
+3V3
SDIO
GND
SDIO_DAT2PC10
PC8
PC9
PC11
PC8SDIO_DAT0
DCI_D2
PC9SDIO_DAT1
DCI_D3
PC11 SDIO_DAT2
DCI_D4

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4.14 NAND Flash
EXMC_D0
EXMC_D1
EXMC_D2
EXMC_D3
EXMC_D4
EXMC_D5
EXMC_D6
EXMC_D7
EXMC_NWE
EXMC_NOE
PD14
PD15
PE7
PE8
PE9
PE10
PD4
CL
16
AL
17
W
18
R
8
E
9
VSS2 36
VSS1 13
VDD237
VDD112 IO7
44
IO6
43
IO5
42
IO4
41
IO3
32
IO2
31
IO1
30
IO0
29
WP 19
RB 7
U11
HY27UF081G2A
EXMC_A16
EXMC_A17
EXMC_NWE
EXMC_NOE
R64
10KΩ
+3V3 R63 10KΩ+3V3
R66 10KΩ
+3V3
EXMC_NWAIT
GND
+3V3
Nand Flash
EXMC_D7
EXMC_D6
EXMC_D5
EXMC_D4
EXMC_D3
EXMC_D2
EXMC_D1
EXMC_D0
C50
50V/0.1uF
C51
50V/0.1uF
+3V3
GND
EXMC_A17
EXMC_A16
EXMC_NWAIT
EXMC_NCE1
PD11
PD12
PD7
EXMC_NCE1
PD5
PD6
PD0
PD1
4.15 SDRAM
VDD
1
DQ0
2
VDDQ
3
DQ1
4
DQ2
5
VSSQ
6
DQ3
7
DQ4
8
VDDQ
9
DQ5
10
DQ6
11
VSSQ
12
DQ7
13
VDD
14
LDQM
15
WE
16
CAS
17
RAS
18
CS
19
BA0
20
BA1
21
A10/AP
22
A0
23
A1
24
A2
25
A3
26
VDD
27 VSS 28
A4 29
A5 30
A6 31
A7 32
A8 33
A9 34
A11 35
A12 36
CKE 37
CLK 38
UDQM 39
NC 40
VSS 41
DQ842
VDDQ 43
DQ944
DQ10 45
VSSQ 46
DQ11 47
DQ12 48
VDDQ 49
DQ13 50
DQ14 51
VSSQ 52
DQ15 53
VSS 54
U9
MT48LC16M16A2P-6AIT
+3V3
GND
+3V3
+3V3
+3V3
+3V3
+3V3GND
GND
GND
GND
GND
GND
GND
EXMC_D0
EXMC_D1
EXMC_D2
EXMC_D3
EXMC_D4
EXMC_D5
EXMC_D6
EXMC_D7 EXMC_D8
EXMC_D9
EXMC_D10
EXMC_D11
EXMC_D12
EXMC_D13
EXMC_D14
EXMC_D15
EXMC_NBL0 EXMC_NBL1EXMC_SDNWE
EXMC_SDNCAS
EXMC_SDNRAS
EXMC_SDNE0
EXMC_BA0
EXMC_BA1
EXMC_A0
EXMC_A1
EXMC_A2
EXMC_A3 EXMC_A4
EXMC_A5
EXMC_A6
EXMC_A7
EXMC_A8
EXMC_A9
EXMC_A10
EXMC_A11
EXMC_A12
EXMC_SDCKE0
EXMC_SDCLK
EXMC_D0
PE11
PE12
PE13
PE14
PE15
PD8
PD9
PD10
+3V3
+3V3
PH5
PC2EXMC_SDNWE
EXMC_SDNE0
EXMC_SDCKE0
PE0
PE1
PF0
PF1
PF2
PF3
PF4
PF5
PF14
PF15
PF11
PF12
PF13
PG0
PG1
PG2
PG4
PG5
PG15
PG8
EXMC_NBL0
EXMC_NBL1
EXMC_SDNCAS
EXMC_SDNRAS
EXMC_BA0
EXMC_BA1
EXMC_SDCLK
EXMC_A0
EXMC_D1
EXMC_D2
EXMC_D3
EXMC_D4
EXMC_D5
EXMC_D6
EXMC_D7
EXMC_D8
EXMC_D9
EXMC_D10
EXMC_D11
EXMC_D12
EXMC_D13
EXMC_D14
EXMC_D15
EXMC_A1
EXMC_A2
EXMC_A3
EXMC_A4
EXMC_A5
EXMC_A6
EXMC_A7
EXMC_A8
EXMC_A9
EXMC_A10
EXMC_A11
EXMC_A12
SDRAM
DCI_8bit, TLI and SDRAMcan be used at the same time
C52
50V/0.1uF
C53
50V/0.1uF
C54
50V/0.1uF
C55
50V/0.1uF
C56
50V/0.1uF
C57
50V/0.1uF
C58
50V/0.1uF
PD0
PD1
PE7
PE8
PE9
PE10
PD14
PD15
R8
10KΩ
PC5
PC5 is AFIO, please refer to ETHNET schematic for right config

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4.16 DCI
DCI 8bit
+3V3
DCI_I2C0_SCL
DCI_VSYNC
DCI_PIXCLK
DCI_D7
DCI_D5
DCI_D3
DCI_D1
GND
DCI_I2C0_SDA
DCI_HSYNC
DCI_XCLK
DCI_D6
DCI_D4
DCI_D2
DCI_D0
DCI_I2C0_SCL
DCI_I2C0_SDA
DCI_VSYNC
DCI_HSYNC
DCI_PIXCLK
DCI_XCLK
DCI_D5
DCI_D4
DCI_D3
DCI_D2
DCI_D1
DCI_D0
PG9
PA6
PA8
PC6
PC7
PC8
PC9
PC11
PD3
DCI_8bit, TLI and SDRAMcan be used at the same time
1
2
3
JP22
HEADER 3
Short JP22(1,2) for Ethnet function
Short JP22(2,3) for DCI function
RMII_REF_CLK
PB9
PB8
1
2
3
JP19
HEADER 3
1
2
3
JP21
HEADER 3
CAN0_TX
CAN0_RX
Short JP19(1,2) for CAN function
DCI_D6
DCI_D7
Short JP19(2,3) for DCI function
Short JP21(1,2) for CAN function
Short JP21(2,3) for DCI function
OV2640
PB7
PB6
PA41
2
3
JP23
HEADER 3
Short JP23(1,2) for DAC function
Short JP23(2,3) for DCI function
DAC_OUT0
R20 0Ω
R16 0Ω
R12 0Ω
PC8SDIO_DAT0
DCI_D2
PC9SDIO_DAT1
DCI_D3
PC11 SDIO_DAT2
DCI_D4 1 2
3 4
5 6
7 8
910
11 12
13 14
15 16
JP27
8×2P2.54
PA6DCI_PIXCLK
I2S1_MCK
4.17 LCD
TLI
PG12
PG10
PE4
Pi5
Pi4
Pi6
Pi7
LCD_B1
LCD_B2
LCD_B3
LCD_B4
LCD_B5
LCD_B6
LCD_B7
LCD_B0
PE5
PE6
PH13
Pi2
PH15
Pi0
Pi1
PH14
LCD_G0
LCD_G1
LCD_G2
LCD_G3
LCD_G4
LCD_G5
LCD_G6
LCD_G7
PH9
PH12
PG6
PH3
PH2
PH10
PH11
PH8
LCD_R0
LCD_R1
LCD_R2
LCD_R3
LCD_R4
LCD_R5
LCD_R6
LCD_R7
PG7
Pi10
Pi9
LCD_CLK
LCD_HSYNC
LCD_VSYNC
LCD_SPI4_NSS
LCD_SPI4_SCK
LCD_SPI4_MISO
LCD_SPI4_MOSI
PH7
LCD_Touch_PENIRQ
LCD_PWM_BackLight
LCD_Touch_Busy
1 2
3 4
5 6
7 8
910
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
JP30
20X2P2.54
LCD_Touch_PENIRQ +5V
LCD_SPI4_MOSI
LCD_SPI4_SCK
LCD_PWM_BackLight
LCD_Touch_Busy
LCD_R0 LCD_R1
LCD_R2 LCD_R3
LCD_R4 LCD_R5
LCD_R6 LCD_R7
LCD_G0 LCD_G1
LCD_G2 LCD_G3
LCD_G4 LCD_G5
LCD_G6 LCD_G7
LCD_B0 LCD_B1
LCD_B2 LCD_B3
LCD_B4 LCD_B5
LCD_B6 LCD_B7
LCD_CLK
LCD_HSYNC
LCD_SPI4_MISO
LCD_SPI4_NSS
GND
LCD_VSYNC
GND
DCI_8bit, TLI and SDRAM can be used at the same time
R117 0Ω
R118 0Ω
R119 0Ω SPI5_HOLD_IO3PG11
PG10 SPI5_#WP_IO2
LCD_B2
PG12 SPI5_MISO_IO1
LCD_B1
LCD_DE
GND
PG10、PG11、PG12 are AFIO, please refer toSPI Schematic for right config
Pi3
PB15
PF7
PF9
PF8
PF6
Pi1LCD_G6
I2S1_CK
Pi0LCD_G5
I2S1_WS

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4.18 USBFS
GND
R58 22Ω
R59 22Ω
E10
16V/10uF,AVX
GND
PA11
PA12
R62
1MΩ
C49
50V/4.7nF
USB_FS_VBUS
USB_FS_DM
USB_FS_DP
VBUS
1
DM
2
DP
3
ID
4
GND
5
Shield
6
USB_MiniAB receptacle
CN2
Mini_USB
PA9
PA9 is AFIO, please refer to USART schematic for right config
GND
VBUS_FS_5V
R120 10KΩ
"VBUS_FS_5V control（active HIGH）" see USB_HS schematic
PD13---->
4.19 USBHS
USB_HS_ULPI_D0
GND 1
GND 2
CPEN 3
VBUS 4
ID 5
VDD3.3 6
DP 7
DM 8
RESET
9
EXTVBUS 10
NXT
11
DIR
12
STP
13
CLKOUT
14
VDD1.8 15
VDD3.3 16
D7
17
D6
18
D5
19
D4
20
D3
21
D2
22
D1
23
D0
24 VDD3.3 25
VDD1.8 26
XO
27
XI
28 VDDA1.8 29
VDD3.3 30
REG_EN 31
RBIAS 32
GNDPAD 33
U13
USB3300-EZK
R98 10KΩ
R111 12KΩGND
VBUS
1
DM
2
DP
3
ID
4
GND
5
Shield
6
USB_MiniAB receptacle
CN3
Mini_USB
R114
1MΩ
C70
50V/4.7nF
GND
GND
R112 820Ω
+5V
GND
C64
50V/0.1uF
C65
50V/0.1uF
C66
50V/0.1uF
C67
50V/0.1uF
GND
+3V3
E13
16V/4.7uF,AVX
E12
16V/4.7uF,AVX
C71
50V/0.1uF
GND
C69
50V/0.1uF
GND
GND
R116
10KΩ
GND
USB_HS_ULPI_D1
USB_HS_ULPI_D2
USB_HS_ULPI_D3
USB_HS_ULPI_D4
USB_HS_ULPI_D5
USB_HS_ULPI_D6
USB_HS_ULPI_D7
R113 33Ω
USB_HS_ULPI_DIR
USB_HS_ULPI_STP
USB_HS_ULPI_NXT
USB_HS_ULPI_CK
PH4
Pi11
PC0
PA5
PB5
PB13
PB12
PB11
PB10
PB1
PB0
PA3
C68
50V/20pF
C72
50V/20pF
Y3
SMT5032-24MHz
GND R115
1MΩ
USB_HS_ULPI ENA
1
FLGA
2
FLGB
3
ENB
4OUTB 5
GND 6
IN 7
OUTA 8
U12
SP2526A-1EN
+3V3
LED6
LEDRED
R99
470Ω
R100
10KΩGND
C63
50V/0.1uF
E11
16V/10uF,AVX
VBUS_HS_5V
PD13 VBUS_FS_5V
R96
10KΩ
GND
R97 10KΩ
ENA and ENB active HIGH

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4.20 Extension
ExtensionPin
PE2
PE4
PE6PC13
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
910
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
910
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
910
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
PF1PF2
PF3PF4
PF5GND
PF6
PF7PF8
PF9PF10
PC0
PC1PC2
PC3
PA0
PA1PA2
PH2PH3
PH4PH5
PA3PA4
PA5PA6
PA7PC4
PC5PB0
PB1PB2
PF11 PF12
PF13 PF14
PF15 PG0
PG1PE7
PE8PE9
PE10 PE11
PE12 PE13
PE14 PE15
PB10 PB11
PH6PH7
PH8PH9
PH10 PH11
PB12
PB13 PB14
PB15 PD8
PD9PD10
PD11 PD12
PD13 PD14
PD15 PG2
PG3PG4
PG5PG6
PG7PG8
PC6PC7
PC8PC9
PA8PA9
PA10 PA11
PA12 PA13
GND
PH13
PH14 PH15
Pi0Pi1
NC
Pi2
BOOT0
GND
GND
GND
1 2
3 4
5 6
7 8
910
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
PD1PD2
PD3PD4
PD5PD6
PD7PG9
PG10 PG11
PG12 PG13
PG14 PG15
PB3PB4
PB5PB6
PB7
PB8PB9
PE0PE1
Pi4Pi5
Pi6Pi7
+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
10KΩ
C103
50V/0.1uF
R104
10KΩ
GND
C105
50V/0.1uF
C106
50V/0.1uF
C107
50V/0.1uF
C108
50V/0.1uF
R101
1MΩ
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
PB018
PB119
PB2/BOOT1 20
PB3/JTDO 39
PB4/JNTRST 40
PB541
PB642
PB743
PB845
PB946
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
10KΩGND
R109 1KΩ
R110 1KΩGND
GND
R105 22Ω
R106 22Ω
R108
1MΩC104
50V/4.7nF
L_USB_DM
L_USB_DP
GND
R107 1.5KΩL_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.

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5.1.2 DEMO Running Result
Download the program <01_GPIO_Runing_Led> to the EVAL board, LED1, LED2,
LED3 will turn on in sequence with interval of 200ms, and turn off together, 200ms later,
repeat the process.
5.2 GPIO_Keyboard_Polling_mode
5.2.1 DEMO Purpose
This demo includes the following functions of GD32 MCU:
Learn to use GPIO control the LED and the KEY
Learn to use SysTick to generate 1ms delay
GD32450I-EVAL board has four keys and three LEDs. The four keys are Reset key,
Tamper key, Wakeup key and User key. The LED1, LED2 and LED3 are controlled by
GPIO.
This demo will show how to use the Tamper key to control the LED1.When press down
the Tamper Key, it will check the input value of the IO port. If the value is 0 and will wait
for 100ms.Check the input value of the IO port again. If the value still is 0, it indicates
that the button is pressed successfully and toggle LED1.
5.2.2 DEMO Running Result
Download the program <02_GPIO_KeyBoard_Polling_mode> to the EVAL board, press
down the Tamper Key, LED1 will be turned on. Press down the Tamper Key again, LED1
will be turned off.
5.3 GPIO_KeyBoard_Interrupt_mode
5.3.1 DEMO Purpose
This demo includes the following functions of GD32 MCU:
Learn to use GPIO control the LED and the KEY
Learn to use EXTI to generate external interrupt
GD32450I-EVAL board has four keys and three LEDs. The four keys are Reset key,
Tamper key, Wakeup key and User key. The LED1, LED2 and LED3 are controlled by
GPIO.

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This demo will show how to use the EXTI interrupt line to control the LED1.When press
down the Tamper Key, it will produce an interrupt. In the interrupt service function, the
demo will toggle LED1.
5.3.2 DEMO Running Result
Download the program <03_GPIO_KeyBoard_Interrupt_mode> to the EVAL board,
Press down the Tamper Key, LED1 will be turned on. Press down the Tamper Key again,
LED1 will be turned off.
5.4 USART_Printf
5.4.1 DEMO Purpose
This demo includes the following functions of GD32 MCU:
Learn to use GPIO control the LED
Learn to retarget the C library printf function to the USART
5.4.2 DEMO Running Result
Download the program < 04_USART_Printf > to the EVAL board, jump the JP5 to
USART with the jumper cap and connect serial cable to EVAL_COM1. This
implementation outputs “USART printf example: please press the Tamper key” on the
HyperTerminal using EVAL_COM1. Press the Tamper key, serial port will output “USART
printf example”.
The output information via the serial port is as following.
5.5 USART_Echo_Interrupt_mode
5.5.1 DEMO Purpose
This demo includes the following functions of GD32 MCU:
Learn to use the USART transmit and receive interrupts to communicate with the
serial terminal tool