diff --git a/JLinkDevices/AT/AT32F421x8x/AT32F421_16.FLM b/JLinkDevices/AT/AT32F421x8x/AT32F421_16.FLM
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diff --git a/JLinkDevices/AT/AT32F421x8x/AT32F421_32.FLM b/JLinkDevices/AT/AT32F421x8x/AT32F421_32.FLM
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diff --git a/JLinkDevices/AT/AT32F421x8x/AT32F421_64.FLM b/JLinkDevices/AT/AT32F421x8x/AT32F421_64.FLM
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diff --git a/JLinkDevices/AT/AT32F421x8x/AT32F421_BOOTMEM_AP.FLM b/JLinkDevices/AT/AT32F421x8x/AT32F421_BOOTMEM_AP.FLM
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diff --git a/JLinkDevices/AT/AT32F421x8x/AT32F421_USD.FLM b/JLinkDevices/AT/AT32F421x8x/AT32F421_USD.FLM
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diff --git a/JLinkDevices/AT/AT32F421x8x/Devices.xml b/JLinkDevices/AT/AT32F421x8x/Devices.xml
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index 0000000..5e38754
--- /dev/null
+++ b/JLinkDevices/AT/AT32F421x8x/Devices.xml
@@ -0,0 +1,8 @@
+<Database>
+  <Device>
+    <ChipInfo Vendor="AT" Name="AT32F421xGx" WorkRAMAddr="0x20000000" WorkRAMSize="0x03E80" Core="JLINK_CORE_CORTEX_M4" />
+    <FlashBankInfo Name="Internal code flash" BaseAddr="0x08000000" AlwaysPresent="1" >
+      <LoaderInfo Name="QSPI Flash" MaxSize="0x010000" Loader="AT32F421_64.FLM" LoaderType="FLASH_ALGO_TYPE_CMSIS" />
+    </FlashBankInfo>
+  </Device>
+</Database>
\ No newline at end of file