GigaDevice GD32M531
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The GigaDevice GD32M531 are Cortex-M33 based microprocessors.
Flash Banks
Internal Flash
The following flash regions are supported by J-Link.
| Device | Base address | Size | J-Link Support |
|---|---|---|---|
| Main flash | 0x08000000 | Up to 256 KB | 
|
| Data flash | 0x08800000 | 64 KB |
|
| OTP | 0x1FFF7000 | 512 B |
|
| Option bytes | 0x1FFFF800 | 32 B |
|
Watchdog Handling
- The device has 2 watchdogs WDGT and FWDGT.
- The watchdogs are fed during flash programming.
Device Specific Handling
Security
If J-Link detects a security protected device (SPC[7:0] != 0xA5) the user is offered a unprotect before connecting to the device. If user chooses unprotect, the device will be erased and the option bytes are set to default values.
Reset
- The device uses the Cortex-M default reset strategy.