GigaDevice GD32

The GD32 Cortex-M Series is family of devices by GigaDevice Semiconductor Inc.
The following article contains information which applies to all members of the product family (e.g. readout protection).
Information which is more specific to the respective sub-family(e.g. QSPI programming) is provided in family specific articles.

A list of all GigaDevice devices supported by SEGGER can be found here.
For further information regarding the product family, please refer to the website and documentation by GigaDevice.

Device security

On connect, the device security is checked. If security is set (and recoverable) the user is asked if they want security to be lifted. If the user agrees, security is lifted by J-Link (if possible).

Note:

• It is possible to disable device access completely, by setting Protection level to high. A connect will not be possible anymore afterwards and the security cannot be reset.
• It is possible to save the selection of the unlock dialog. To reset this, please refer to: Reset unlock message box.

Connect under reset

In case that J-Link fails to connect to the device (usually caused by a low-power state of the MCU), J-Link will try to connect to the device under reset to make debugging possible.