GD32C231C-EVAL

Overview

The GD32C231C-EVAL evaluation board is a low-cost development platform for GigaDevice GD32C231C microcontroller series based on ARM Cortex-M23 core.

The GD32C231C8 features:

ARM Cortex-M23 processor at 48MHz maximum
64KB Flash memory
12KB SRAM
Low power operation
Multiple communication interfaces: UART, SPI, I2C
GPIO ports
Timer modules
ADC and comparator

Hardware

MCU: GD32C231C8T6
Crystal: 8MHz external crystal for HXTAL
LED: 4 user LEDs (LED1..LED4)
Debug: SWD interface

Supported Features

The gd32c231c_eval board supports the hardware features listed below.

on-chip / on-board: Feature integrated in the SoC / present on the board.
2 / 2: Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo: Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

`gd32c231c_eval/gd32c231` target

On-target memory for this board target: 12 KiB of RAM, 64 KiB of Flash.

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M23 CPU1	`arm,cortex-m23`
Clock control	on-chip	Gigadevice RCU - Clock Controller1	`gd,gd32-cctl`
Flash controller	on-chip	There are three types GD32 FMC1	`gd,gd32-flash-controller`
GPIO & Headers	on-chip	GD32 GPIO2 3	`gd,gd32-gpio`
Interrupt controller	on-chip	ARMv8-M NVIC (Nested Vectored Interrupt Controller)1	`arm,v8m-nvic`
Interrupt controller	on-chip	GigaDevice External Interrupt Controller1	`gd,gd32-exti`
LED	on-board	Group of GPIO-controlled LEDs1	`gpio-leds`
Multi-Function Device	on-chip	Gigadevice RCU1	`gd,gd32-rcu`
Miscellaneous	on-chip	GigaDevice GD32 System Configuration Registers1	`gd,gd32-syscfg`
MTD	on-chip	Flash memory binding of GD32 FMC v11	`gd,gd32-nv-flash-v1`
Pin control	on-chip	GD32 Pin Controller (AF Model)1	`gd,gd32-pinctrl-af`
Reset controller	on-chip	Gigadevice RCU - Reset Controller1	`gd,gd32-rctl`
Serial controller	on-chip	GigaDevice USART1 2	`gd,gd32-usart`
SRAM	on-chip	Generic on-chip SRAM1	`mmio-sram`
Timer	on-chip	ARMv8-M System Tick1	`arm,armv8m-systick`

Connections and IOs

LED

LED1 = PA15
LED2 = PD1
LED3 = PD3
LED4 = PB4

UART

USART0_TX = PA9
USART0_RX = PA10

Programming and Debugging

The gd32c231c_eval board supports the runners and associated west commands listed below.

	flash	debug	attach	debugserver	rtt	reset
jlink	✅	✅	✅	✅	✅	✅
openocd	✅ (default)	✅ (default)	✅	✅	✅

The GD32C231C-EVAL board includes an onboard GD-Link programmer/debugger with a CMSIS-DAP SWD interface over USB. The recommended flashing tool is GD-Link Utility Programmer, the official GigaDevice utility. OpenOCD and J-Link are also supported.

Flashing

Using GD-Link Utility Programmer

GD-Link Utility Programmer [1] is GigaDevice’s official download tool for GD-Link hardware. It supports SWD programming and ISP download.

Download and install GD-Link Utility Programmer from the GigaDevice download center [2].

Build the sample application:

west build -b gd32c231c_eval samples/hello_world

Connect the board to the PC via the USB port (GD-Link interface).
Open GD-Link Utility Programmer, select target device GD32C231C8T6, load build/zephyr/zephyr.hex, and click Download.

Using OpenOCD

OpenOCD can be used with the onboard GD-Link CMSIS-DAP interface or an external SWD probe:

west build -b gd32c231c_eval samples/hello_world
west flash

Using J-Link

west build -b gd32c231c_eval samples/hello_world
west flash --runner jlink

Debugging

Use the onboard GD-Link interface or an external SWD probe:

west build -b gd32c231c_eval samples/hello_world
west debug