GD32A503V-EVAL

Overview

The GD32A503V-EVAL board is a hardware platform that enables design and debug of the GigaDevice A503 Cortex-M4F High Performance MCU.

The GD32A503VD features a single-core ARM Cortex-M4F MCU which can run up to 120-MHz with flash accesses zero wait states, 384kiB of Flash, 48kiB of SRAM and 88 GPIOs.

Hardware

2 user LEDs
2 user push buttons
Reset Button
ADC connected to a potentiometer
1 DAC channels
GD25Q16 2Mib SPI Flash
AT24C02C 2KiB EEPROM
CS4344 Stereo DAC with Headphone Amplifier
GD-Link interface
- CMSIS-DAP swd debug interface over USB HID.
2 CAN FD ports

For more information about the GD32A503 SoC and GD32A503V-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,v8m-nvic`
PWM	`CONFIG_PWM`	`gd,gd32-pwm`
SYSTICK	N/A	N/A
USART	`CONFIG_SERIAL`	`gd,gd32-usart`
PINMUX	`CONFIG_PINCTRL`	`gd,gd32-pinctrl-af`
ADC	`CONFIG_ADC`	`gd,gd32-adc`
DAC	`CONFIG_DAC`	`gd,gd32-dac`
FMC	N/A	`gd,gd32-flash-controller`
SPI	`CONFIG_SPI`	`gd,gd32-spi`

Serial Port

The GD32A503V-EVAL board has 3 serial communication ports. The default port is UART0 at PIN-72 and PIN-73.

Programming and Debugging

Before program your board make sure to configure boot setting and serial port. The default serial port is USART0.

Boot-0	Boot-1	Function
1-2	1-2	SRAM
1-2	2-3	Bootloader
2-3	Any	Flash

Using GD-Link

The GD32A503V-EVAL includes an onboard programmer/debugger (GD-Link) which allow flash programming and debug over USB. There are also program and debug headers J2 and J100 that can be used with any ARM compatible tools.

Build the Zephyr kernel and the Hello World sample application:
```
west build -b gd32a503v_eval samples/hello_world
```
Run your favorite terminal program to listen for output. Under Linux the terminal should be /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 gd32a503v_eval samples/hello_world
west flash
```
You should see “Hello World! gd32a503v_eval” in your terminal.

To debug an image:

west build -b gd32a503v_eval samples/hello_world
west debug

Using ROM bootloader

The GD32A503 MCU have a ROM bootloader which allow flash programming. User should install GD32 ISP Console software at some Linux path. The recommended is $HOME/.local/bin.

Build the Zephyr kernel and the Hello World sample application:
```
west build -b gd32a503v_eval samples/hello_world
```
Enable board bootloader:
- Remove boot-0 jumper
- press reset button

To flash an image:

west flash -r gd32isp [--port=/dev/ttyUSB0]

Run your favorite terminal program to listen for output. Under Linux the terminal should be /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
Press reset button

You should see “Hello World! gd32a503v_eval” in your terminal.