GigaDevice GD32A5

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

Internal RAM

Device	StartAddr	Size
GD32A503xB	0x20000000	24Kb
GD32A503xC	0x20000000	32Kb
GD32A503xD	0x20000000	48Kb

Supported Flash Banks

Internal Flash

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

Option Byte

Device	StartAddr	Size	J-Link Support
GD32A503xB	0x1FFFF800	24 Byte	YES
GD32A503xC	0x1FFFF800	24 Byte	YES
GD32A503xD	0x1FFFF800	24 Byte	YES

Reset

The device uses normal reset, no special handling necessary.

ECC RAM

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

Evaluation Boards

• 1. 1. 1. 1. evaluation board: https://wiki.segger.com/####

Example Application

• 1. 1. 1. 1. 1. evaluation board: https://wiki.segger.com/######Example_Project