GD32L233R-EVA

Overview

The GD32L233R-EVAL board is a hardware platform that enables design and debug of the GigaDevice GD32L233 Cortex-M23 Low Power MCU.

The GD32RCT6 features a single-core ARM Cortex-M4F MCU which can run up to 64-MHz with flash accesses zero wait states, 256kB of Flash, 32kB of SRAM and 59 GPIOs.

Hardware

GD32L233RCT6 MCU
AT24C02C 2Kb EEPROM
4 x User LEDs
2 x User Push buttons
1 x USART (Mini-USB)
1 x POT connected to an ADC input
Headphone interface
SLCD segment code screen
GD-Link on board programmer
J-Link/SWD connector

For more information about the GD32L233 SoC and GD32L233R-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`
SYSTICK	N/A	N/A
USART	`CONFIG_SERIAL`	`gd,gd32-usart`
PINMUX	`CONFIG_PINCTRL`	`gd,gd32-pinctrl-af`
ADC	`CONFIG_ADC`	`gd,gd32-adc`

Serial Port

The GD32L233R-EVAL board has one serial communication port. The default port is USART1 with TX connected at PA2 and RX at PA3. USART1 have connect to a CH04E serial connector with Mini-USB.

Programming and Debugging

Using J-Link

The GD32L233R-EVAL includes an onboard programmer/debugger (GD-Link) which allows flash programming and debugging over USB. There is also a SWD header which can be used with tools like Segger J-Link(latest version required).

Build the Zephyr kernel and the Hello World sample application:
```
west build -b gd32l233r_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 gd32l233r_eval samples/hello_world
west flash
```
You should see “Hello World! gd32l233r_eval” in your terminal.

To debug an image:

west build -b gd32l233r_eval samples/hello_world
west debug