[Keyboard] Add Support to Ducky One2 SF (#17260)

keyboards/ducky/one2sf/1967st/rules.mk

@@ -0,0 +1,34 @@
+MCU_FAMILY = NUMICRO
+MCU_SERIES = NUC123
+
+# Bootloader selection
+BOOTLOADER = custom
+
+# linker script to use
+MCU_LDSCRIPT = NUC123xD4xx0
+
+# startup code to use
+MCU_STARTUP = NUC123
+BOARD = NUC123SD4AN0
+
+# NUC123 series is Cortex M0
+MCU  = cortex-m0
+# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+ARMV = 6
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = yes           # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+DIP_SWITCH_ENABLE = yes
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE