GigaDevice GD32A5

The GD32A50x series are 32-bit general-purpose microcontrollers based on the Arm® Cortex®-M33 processor.

Flash Banks

Internal Flash

Flash Bank	Base address	Size	J-Link Support
Main flash Bank 0	0x08000000	Up to 256 KB
Main flash Bank 1	0x08040000	128 KB

ECC RAM

In order to prevent errors when reading first time, the DLL initializes the first 24Kb of RAM starting at 0x2000 0000.

Supported Flash Banks

Internal Flash

Device	StartAddr	Size	J-Link Support
GD32A503xB	0x08000000	128Kb
GD32A503xC	0x08000000	256Kb
GD32A503xD	0x08000000	384Kb

Option Byte

Device	StartAddr	Size	J-Link Support
GD32A503xx	0x1FFFF800	24 Byte

Reset

The device uses normal reset, no special handling necessary.

Minimum requirements

• J-Link software V7.82b or later

Evaluation Boards

• GigaDevice GD32A503-EVAL evaluation board: https://wiki.segger.com/GigaDevice_GD32A503-EVAL

Example Application

• GigaDevice GD32A503-EVAL evaluation board: https://wiki.segger.com/GigaDevice_GD32A503-EVAL#Example_Project