✨ Zonestar ZM3E2, ZM3E4 V1, ZM3E4 V2 (#22498)

buildroot/share/PlatformIO/ldscripts/ZONESTAR_ZM3E_256K.ld

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+MEMORY
+{
+  ram (rwx) : ORIGIN = 0x20000000, LENGTH = 48K - 40
+  rom (rx)  : ORIGIN = 0x08005000, LENGTH = 256K - 20K - 4K
+}
+
+/* Provide memory region aliases for common.inc */
+REGION_ALIAS("REGION_TEXT", rom);
+REGION_ALIAS("REGION_DATA", ram);
+REGION_ALIAS("REGION_BSS", ram);
+REGION_ALIAS("REGION_RODATA", rom);
+
+/* Let common.inc handle the real work. */
+INCLUDE common.inc

buildroot/share/PlatformIO/ldscripts/ZONESTAR_ZM3E_512K.ld

@@ -0,0 +1,14 @@
+MEMORY
+{
+  ram (rwx) : ORIGIN = 0x20000000, LENGTH = 48K - 40
+  rom (rx)  : ORIGIN = 0x08005000, LENGTH = 512K - 20K - 4K
+}
+
+/* Provide memory region aliases for common.inc */
+REGION_ALIAS("REGION_TEXT", rom);
+REGION_ALIAS("REGION_DATA", ram);
+REGION_ALIAS("REGION_BSS", ram);
+REGION_ALIAS("REGION_RODATA", rom);
+
+/* Let common.inc handle the real work. */
+INCLUDE common.inc

buildroot/tests/STM32F103VE_ZM3E4V2_USB_maple

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+#!/usr/bin/env bash
+#
+# Build tests for STM32F103VE_ZM3E4V2_USB
+#
+
+# exit on first failure
+set -e
+
+restore_configs
+opt_set MOTHERBOARD BOARD_ZONESTAR_ZM3E4V2 SERIAL_PORT 1
+exec_test $1 $2 "Zonestar ZM3E4 V2.0" "$3"
+
+# cleanup
+restore_configs