diff --git a/boards/genericGD32A503CB.json b/boards/genericGD32A503CB.json
new file mode 100644
index 0000000..21b3e45
--- /dev/null
+++ b/boards/genericGD32A503CB.json
@@ -0,0 +1,47 @@
+{
+  "build": {
+    "core": "gd32",
+    "cpu": "cortex-m33",
+    "extra_flags": "-DGD32A5 -DGD32A503 -DGD32A50X",
+    "f_cpu": "100000000L",
+    "mcu": "gd32a503cbt3",
+    "spl_series": "GD32A50X",
+    "series": "GD32A503"
+  },
+  "debug": {
+    "jlink_device": "GD32A503CB",
+    "openocd_target": "unknown",
+    "svd_path": "GD32A50X.svd",
+    "default_tools": [
+      "stlink"
+    ],
+    "openocd_extra_pre_target_args": [
+      "-c",
+      "set CPUTAPID 0"
+    ]
+  },
+  "frameworks": [
+    "spl"
+  ],
+  "name": "GD32A503CB (24k RAM, 128k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 24576,
+    "maximum_size": 131072,
+    "protocol": "gdlinkcli",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "sipeed-rv-debugger",
+      "serial",
+      "gdlinkcli"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://www.gigadevice.com/product/mcu/mcus-product-selector/gd32a503cbt3/",
+  "vendor": "GigaDevice"
+}
\ No newline at end of file
diff --git a/boards/genericGD32A503CC.json b/boards/genericGD32A503CC.json
new file mode 100644
index 0000000..6af2888
--- /dev/null
+++ b/boards/genericGD32A503CC.json
@@ -0,0 +1,47 @@
+{
+  "build": {
+    "core": "gd32",
+    "cpu": "cortex-m33",
+    "extra_flags": "-DGD32A5 -DGD32A503 -DGD32A50X",
+    "f_cpu": "100000000L",
+    "mcu": "gd32a503cct3",
+    "spl_series": "GD32A50X",
+    "series": "GD32A503"
+  },
+  "debug": {
+    "jlink_device": "GD32A503CC",
+    "openocd_target": "unknown",
+    "svd_path": "GD32A50X.svd",
+    "default_tools": [
+      "stlink"
+    ],
+    "openocd_extra_pre_target_args": [
+      "-c",
+      "set CPUTAPID 0"
+    ]
+  },
+  "frameworks": [
+    "spl"
+  ],
+  "name": "GD32A503CC (32k RAM, 256k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 32768,
+    "maximum_size": 262144,
+    "protocol": "gdlinkcli",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "sipeed-rv-debugger",
+      "serial",
+      "gdlinkcli"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://www.gigadevice.com/product/mcu/mcus-product-selector/gd32a503cct3/",
+  "vendor": "GigaDevice"
+}
\ No newline at end of file
diff --git a/boards/genericGD32A503KB.json b/boards/genericGD32A503KB.json
new file mode 100644
index 0000000..f2d6e91
--- /dev/null
+++ b/boards/genericGD32A503KB.json
@@ -0,0 +1,47 @@
+{
+  "build": {
+    "core": "gd32",
+    "cpu": "cortex-m33",
+    "extra_flags": "-DGD32A5 -DGD32A503 -DGD32A50X",
+    "f_cpu": "100000000L",
+    "mcu": "gd32a503kbu3",
+    "spl_series": "GD32A50X",
+    "series": "GD32A503"
+  },
+  "debug": {
+    "jlink_device": "GD32A503KB",
+    "openocd_target": "unknown",
+    "svd_path": "GD32A50X.svd",
+    "default_tools": [
+      "stlink"
+    ],
+    "openocd_extra_pre_target_args": [
+      "-c",
+      "set CPUTAPID 0"
+    ]
+  },
+  "frameworks": [
+    "spl"
+  ],
+  "name": "GD32A503KB (24k RAM, 128k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 24576,
+    "maximum_size": 131072,
+    "protocol": "gdlinkcli",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "sipeed-rv-debugger",
+      "serial",
+      "gdlinkcli"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://www.gigadevice.com/product/mcu/mcus-product-selector/gd32a503kbu3/",
+  "vendor": "GigaDevice"
+}
\ No newline at end of file
diff --git a/boards/genericGD32A503KC.json b/boards/genericGD32A503KC.json
new file mode 100644
index 0000000..991de92
--- /dev/null
+++ b/boards/genericGD32A503KC.json
@@ -0,0 +1,47 @@
+{
+  "build": {
+    "core": "gd32",
+    "cpu": "cortex-m33",
+    "extra_flags": "-DGD32A5 -DGD32A503 -DGD32A50X",
+    "f_cpu": "100000000L",
+    "mcu": "gd32a503kcu3",
+    "spl_series": "GD32A50X",
+    "series": "GD32A503"
+  },
+  "debug": {
+    "jlink_device": "GD32A503KC",
+    "openocd_target": "unknown",
+    "svd_path": "GD32A50X.svd",
+    "default_tools": [
+      "stlink"
+    ],
+    "openocd_extra_pre_target_args": [
+      "-c",
+      "set CPUTAPID 0"
+    ]
+  },
+  "frameworks": [
+    "spl"
+  ],
+  "name": "GD32A503KC (32k RAM, 256k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 32768,
+    "maximum_size": 262144,
+    "protocol": "gdlinkcli",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "sipeed-rv-debugger",
+      "serial",
+      "gdlinkcli"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://www.gigadevice.com/product/mcu/mcus-product-selector/gd32a503kcu3/",
+  "vendor": "GigaDevice"
+}
\ No newline at end of file
diff --git a/boards/genericGD32A503RB.json b/boards/genericGD32A503RB.json
new file mode 100644
index 0000000..c120ff2
--- /dev/null
+++ b/boards/genericGD32A503RB.json
@@ -0,0 +1,47 @@
+{
+  "build": {
+    "core": "gd32",
+    "cpu": "cortex-m33",
+    "extra_flags": "-DGD32A5 -DGD32A503 -DGD32A50X",
+    "f_cpu": "100000000L",
+    "mcu": "gd32a503rbt3",
+    "spl_series": "GD32A50X",
+    "series": "GD32A503"
+  },
+  "debug": {
+    "jlink_device": "GD32A503RB",
+    "openocd_target": "unknown",
+    "svd_path": "GD32A50X.svd",
+    "default_tools": [
+      "stlink"
+    ],
+    "openocd_extra_pre_target_args": [
+      "-c",
+      "set CPUTAPID 0"
+    ]
+  },
+  "frameworks": [
+    "spl"
+  ],
+  "name": "GD32A503RB (24k RAM, 128k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 24576,
+    "maximum_size": 131072,
+    "protocol": "gdlinkcli",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "sipeed-rv-debugger",
+      "serial",
+      "gdlinkcli"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://www.gigadevice.com/product/mcu/mcus-product-selector/gd32a503rbt3/",
+  "vendor": "GigaDevice"
+}
\ No newline at end of file
diff --git a/boards/genericGD32A503RC.json b/boards/genericGD32A503RC.json
new file mode 100644
index 0000000..212ff81
--- /dev/null
+++ b/boards/genericGD32A503RC.json
@@ -0,0 +1,47 @@
+{
+  "build": {
+    "core": "gd32",
+    "cpu": "cortex-m33",
+    "extra_flags": "-DGD32A5 -DGD32A503 -DGD32A50X",
+    "f_cpu": "100000000L",
+    "mcu": "gd32a503rct3",
+    "spl_series": "GD32A50X",
+    "series": "GD32A503"
+  },
+  "debug": {
+    "jlink_device": "GD32A503RC",
+    "openocd_target": "unknown",
+    "svd_path": "GD32A50X.svd",
+    "default_tools": [
+      "stlink"
+    ],
+    "openocd_extra_pre_target_args": [
+      "-c",
+      "set CPUTAPID 0"
+    ]
+  },
+  "frameworks": [
+    "spl"
+  ],
+  "name": "GD32A503RC (32k RAM, 256k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 32768,
+    "maximum_size": 262144,
+    "protocol": "gdlinkcli",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "sipeed-rv-debugger",
+      "serial",
+      "gdlinkcli"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://www.gigadevice.com/product/mcu/mcus-product-selector/gd32a503rct3/",
+  "vendor": "GigaDevice"
+}
\ No newline at end of file
diff --git a/boards/genericGD32A503RD.json b/boards/genericGD32A503RD.json
index e297acc..74d4d7a 100644
--- a/boards/genericGD32A503RD.json
+++ b/boards/genericGD32A503RD.json
@@ -9,7 +9,7 @@
     "series": "GD32A503",
     "zephyr": {
       "variant": "gd32a503v_eval"
-   }
+    }
   },
   "debug": {
     "jlink_device": "GD32A503RD",
diff --git a/boards/genericGD32A503VB.json b/boards/genericGD32A503VB.json
new file mode 100644
index 0000000..499ced9
--- /dev/null
+++ b/boards/genericGD32A503VB.json
@@ -0,0 +1,47 @@
+{
+  "build": {
+    "core": "gd32",
+    "cpu": "cortex-m33",
+    "extra_flags": "-DGD32A5 -DGD32A503 -DGD32A50X",
+    "f_cpu": "100000000L",
+    "mcu": "gd32a503vbt3",
+    "spl_series": "GD32A50X",
+    "series": "GD32A503"
+  },
+  "debug": {
+    "jlink_device": "GD32A503VB",
+    "openocd_target": "unknown",
+    "svd_path": "GD32A50X.svd",
+    "default_tools": [
+      "stlink"
+    ],
+    "openocd_extra_pre_target_args": [
+      "-c",
+      "set CPUTAPID 0"
+    ]
+  },
+  "frameworks": [
+    "spl"
+  ],
+  "name": "GD32A503VB (24k RAM, 128k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 24576,
+    "maximum_size": 131072,
+    "protocol": "gdlinkcli",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "sipeed-rv-debugger",
+      "serial",
+      "gdlinkcli"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://www.gigadevice.com/product/mcu/mcus-product-selector/gd32a503vbt3/",
+  "vendor": "GigaDevice"
+}
\ No newline at end of file
diff --git a/boards/genericGD32A503VC.json b/boards/genericGD32A503VC.json
new file mode 100644
index 0000000..1a859f3
--- /dev/null
+++ b/boards/genericGD32A503VC.json
@@ -0,0 +1,47 @@
+{
+  "build": {
+    "core": "gd32",
+    "cpu": "cortex-m33",
+    "extra_flags": "-DGD32A5 -DGD32A503 -DGD32A50X",
+    "f_cpu": "100000000L",
+    "mcu": "gd32a503vct3",
+    "spl_series": "GD32A50X",
+    "series": "GD32A503"
+  },
+  "debug": {
+    "jlink_device": "GD32A503VC",
+    "openocd_target": "unknown",
+    "svd_path": "GD32A50X.svd",
+    "default_tools": [
+      "stlink"
+    ],
+    "openocd_extra_pre_target_args": [
+      "-c",
+      "set CPUTAPID 0"
+    ]
+  },
+  "frameworks": [
+    "spl"
+  ],
+  "name": "GD32A503VC (32k RAM, 256k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 32768,
+    "maximum_size": 262144,
+    "protocol": "gdlinkcli",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "sipeed-rv-debugger",
+      "serial",
+      "gdlinkcli"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://www.gigadevice.com/product/mcu/mcus-product-selector/gd32a503vct3/",
+  "vendor": "GigaDevice"
+}
\ No newline at end of file
diff --git a/boards/genericGD32A503VD.json b/boards/genericGD32A503VD.json
new file mode 100644
index 0000000..472c135
--- /dev/null
+++ b/boards/genericGD32A503VD.json
@@ -0,0 +1,51 @@
+{
+  "build": {
+    "core": "gd32",
+    "cpu": "cortex-m33",
+    "extra_flags": "-DGD32A5 -DGD32A503 -DGD32A50X",
+    "f_cpu": "100000000L",
+    "mcu": "gd32a503vdt3",
+    "spl_series": "GD32A50X",
+    "series": "GD32A503",
+    "zephyr": {
+      "variant": "gd32a503v_eval"
+    }
+  },
+  "debug": {
+    "jlink_device": "GD32A503VD",
+    "openocd_target": "unknown",
+    "svd_path": "GD32A50X.svd",
+    "default_tools": [
+      "stlink"
+    ],
+    "openocd_extra_pre_target_args": [
+      "-c",
+      "set CPUTAPID 0"
+    ]
+  },
+  "frameworks": [
+    "spl",
+    "zephyr"
+  ],
+  "name": "GD32A503VD (48k RAM, 384k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 49152,
+    "maximum_size": 393216,
+    "protocol": "gdlinkcli",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "sipeed-rv-debugger",
+      "serial",
+      "gdlinkcli"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://www.gigadevice.com/product/mcu/mcus-product-selector/gd32a503vdt3/",
+  "vendor": "GigaDevice"
+}
\ No newline at end of file
diff --git a/misc/scripts/board_generator.py b/misc/scripts/board_generator.py
index 695228a..fa43349 100644
--- a/misc/scripts/board_generator.py
+++ b/misc/scripts/board_generator.py
@@ -39,6 +39,7 @@ def __init__(self, name, series, speed_mhz, flash_kb, sram_kb, core_type) -> Non
         self.compile_flags = None
         self.arduino_variant = None
         self.mbedos_variant = None
+        self.zephyr_variant = None
         self.usb_dfu_supported = False
         self.openocd_target = None
         self.hwids = None
@@ -123,7 +124,12 @@ def __repr__(self) -> str:
         "GD32F450ZIT6": "GD32_F450ZI",
         "GD32E103VBT6": "GD32_E103VB",
         "GD32F307VGT6": "GD32_F307VG"
-    }   
+    }
+
+    known_zephyr_variants = {
+       "GD32A503RDT3": "gd32a503v_eval", # just for testing, works on this chip too
+       "GD32A503VDT3": "gd32a503v_eval" # intended target chip
+    }
 
     # stm32duino bootloader hwid's PID/VID
     leaf_hwids = [
@@ -242,6 +248,10 @@ def infer_mbedos_variant(self):
         if self.name in GD32MCUInfo.known_mbedos_variants:
             self.mbedos_variant =  GD32MCUInfo.known_mbedos_variants[self.name]
 
+    def infer_zephyr_variant(self):
+        if self.name in GD32MCUInfo.known_zephyr_variants:
+            self.zephyr_variant =  GD32MCUInfo.known_zephyr_variants[self.name]
+
     def infer_openocd_target(self):
         if self.spl_series in GD32MCUInfo.spl_series_to_openocd_target:
             self.openocd_target = GD32MCUInfo.spl_series_to_openocd_target[self.spl_series]
@@ -298,6 +308,7 @@ def infer_missing_info(self):
         self.infer_compile_flags()
         self.infer_arduino_variant()
         self.infer_mbedos_variant()
+        self.infer_zephyr_variant()
         self.infer_openocd_target()
         self.infer_usb_dfu_supported()
         self.mcu_url = f"https://www.gigadevice.com/product/mcu/mcus-product-selector/{self.name.lower()}/"
@@ -368,11 +379,18 @@ def generate_board_def(self) -> Tuple[str,str]:
         self.set_val_if_exists(board["build"], "variant", self.arduino_variant)
         self.add_val_to_arr_if_true(board, "frameworks", self.arduino_variant != None, "arduino")
         self.add_val_to_arr_if_true(board, "frameworks", self.mbedos_variant != None, "mbed")
+        self.add_val_to_arr_if_true(board, "frameworks", self.zephyr_variant != None, "zephyr")
         self.add_val_to_arr_if_true(board, "frameworks", self.spl_series.startswith("GD32W51x"), "wifi-sdk")
         self.set_val_if_exists(board["build"], "mbed_variant", self.mbedos_variant)
+        if "zephyr" in board["frameworks"]:
+            board["build"]["zephyr"] = { "variant": self.zephyr_variant }
         self.add_val_to_arr_if_true(board["upload"], "protocols", self.usb_dfu_supported, "dfu")
         self.set_val_if_exists(board["upload"], "closely_coupled_ram_size", self.core_coupled_memory_kb * 1024 if self.core_coupled_memory_kb != 0 else None)
 
+        # not supported in OpenOCD yet
+        if self.name.startswith("GD32A50"):
+            board["upload"]["protocol"] = "gdlinkcli"
+
         board_def = json.dumps(board, indent=2)
         return output_filename, board_def
 
diff --git a/misc/svd/GD32A503.svd b/misc/svd/GD32A50X.svd
similarity index 100%
rename from misc/svd/GD32A503.svd
rename to misc/svd/GD32A50X.svd