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diff --git a/include/libopencm3/stm32/f1/desig.h b/include/libopencm3/stm32/f1/desig.h
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+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2012 Karl Palsson <karlp@tweak.net.au>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LIBOPENCM3_DESIG_H
+#define LIBOPENCM3_DESIG_H
+
+#include <libopencm3/stm32/memorymap.h>
+#include <libopencm3/cm3/common.h>
+
+/* --- Device Electronic Signature -------------------------------- */
+
+/* Flash size register */
+#define DESIG_FLASH_SIZE MMIO16(DESIG_FLASH_SIZE_BASE + 0x00)
+
+/* Unique ID register (96 bits) */
+/* Note: ST says these may be accessed in any width if you choose */
+#define DESIG_UID_15_0 MMIO16(DESIG_UNIQUE_ID_BASE + 0x00)
+/* Listed as "This field value is also reserved for a future feature" WTH?! */
+#define DESIG_UID_31_16 MMIO16(DESIG_UNIQUE_ID_BASE + 0x02)
+#define DESIG_UID_63_32 MMIO32(DESIG_UNIQUE_ID_BASE + 0x04)
+#define DESIG_UID_95_64 MMIO32(DESIG_UNIQUE_ID_BASE + 0x08)
+
+/**
+ * Read the onboard flash size
+ * @return flash size in KB
+ */
+u16 desig_get_flash_size(void);
+
+/**
+ * Read the full 96 bit unique identifier
+ * Note: ST specifies that bits 31..16 are _also_ reserved for future use
+ * @param result pointer to at least 3xu32s (96 bits)
+ */
+void desig_get_unique_id(u32 result[]);
+
+#endif