GCC / Makefile example for the Gigadevices GD32E230x based on GD32E23x_Firmware_Library_V1.1.1.
In particular, includes a GCC port of startup_gd32e23x.s, and the GD32E230.svd file.
Blinks LED on Port B1.
[20211031: Currently untested - awaiting MCU/board]