GD32F470I-EVAL

Overview

The GD32F470I-EVAL board is a hardware platform that enables prototyping on GD32F470IK Cortex-M4F Stretch Performance MCU.

The GD32F470IK features a single-core ARM Cortex-M4F MCU which can run up to 240 MHz with flash accesses zero wait states, 3072kiB of Flash, 256kiB of SRAM and 140 GPIOs.

Hardware

GD32F470IKH6 MCU
2Kb EEPROM
16Mbit SPI and QSPI NOR Flash
256Mbit SDRAM
3 x User LEDs
3 x User Push buttons
1 x USART (RS-232 at J1 connector)
1 x POT connected to an ADC input
Headphone interface
Micro SD Card Interface
USB FS connector
USB HS connector
1 x CAN
Ethernet Interface
4.3” LCD (480x272)
OV2640 Digital Camera
GD-Link on board programmer
J-Link/JTAG connector

For more information about the GD32F470 SoC and GD32F470I-EVAL board:

Supported Features

The board configuration supports the following hardware features:

Peripheral	Kconfig option	Devicetree compatible
EXTI	`CONFIG_GD32_EXTI`	`gd,gd32-exti`
GPIO	`CONFIG_GPIO`	`gd,gd32-gpio`
NVIC	N/A	`arm,v7m-nvic`
PWM	`CONFIG_PWM`	`gd,gd32-pwm`
SYSTICK	N/A	N/A
USART	`CONFIG_SERIAL`	`gd,gd32-usart`
DAC	`CONFIG_DAC`	`gd,gd32-dac`
I2C	`CONFIG_I2C`	`gd,gd32-i2c`
EEPROM	`CONFIG_EEPROM`	`atmel,at24`
SPI	`CONFIG_SPI`	`gd,gd32-spi`

Serial Port

The GD32F470I-EVAL board has one serial communication port. The default port is USART0 with TX connected at PA9 and RX at PA10.

Programming and Debugging

Before programming your board make sure to configure boot and serial jumpers as follows:

J2/3: Select 2-3 for both (boot from user memory)
J5: Select 1-2 position (labeled as USART0)

Using GD-Link

The GD32F470I-EVAL includes an onboard programmer/debugger (GD-Link) which allows flash programming and debugging over USB. There is also a JTAG header (J1) which can be used with tools like Segger J-Link.

Build the Zephyr kernel and the Hello World sample application:
```
west build -b gd32f470i_eval samples/hello_world
```
Run your favorite terminal program to listen for output. On Linux the terminal should be something like /dev/ttyUSB0. For example:
```
minicom -D /dev/ttyUSB0 -o
```
The -o option tells minicom not to send the modem initialization string. Connection should be configured as follows:
- Speed: 115200
- Data: 8 bits
- Parity: None
- Stop bits: 1
To flash an image:
```
west build -b gd32f470i_eval samples/hello_world
west flash
```
You should see “Hello World! gd32f470i_eval” in your terminal.

To debug an image:

west build -b gd32f470i_eval samples/hello_world
west debug