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diff --git a/peripherals/hsmc4/hsmc4_ecc.h b/peripherals/hsmc4/hsmc4_ecc.h
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+/* ----------------------------------------------------------------------------
+ *         ATMEL Microcontroller Software Support 
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+
+#ifndef HSMC4_ECC_H
+#define HSMC4_ECC_H
+
+//------------------------------------------------------------------------------
+//         Headers
+//------------------------------------------------------------------------------
+
+#include <board.h>
+
+//------------------------------------------------------------------------------
+//         Definitions
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// \page "Hsiao Code Errors"
+/// These are the possible errors when trying to verify a block of data encoded
+/// using a Hsiao code:
+/// 
+/// !Errors:
+///  - Hsiao_ERROR_SINGLEBIT
+///  - Hsiao_ERROR_ECC
+///  - Hsiao_ERROR_MULTIPLEBITS
+
+/// A single bit was incorrect but has been recovered.
+#define Hsiao_ERROR_SINGLEBIT         1
+
+/// The original code has been corrupted.
+#define Hsiao_ERROR_ECC               2
+
+/// Multiple bits are incorrect in the data and they cannot be corrected.
+#define Hsiao_ERROR_MULTIPLEBITS      3
+
+//------------------------------------------------------------------------------
+//         Exported functions
+//------------------------------------------------------------------------------
+
+extern void HSMC4_EccConfigure(unsigned int type, unsigned int pageSize);
+
+extern unsigned int HSMC4_GetEccCorrectoinType(void);
+
+extern void HSMC4_EccGetValue(unsigned int *ecc);
+
+extern void HSMC4_GetEccParity(
+    unsigned int pageDataSize, 
+    unsigned char *code, 
+    unsigned char dataPath);
+   
+extern unsigned char HSMC4_VerifyHsiao(
+    unsigned char *data,
+    unsigned int size,
+    const unsigned char *originalCode,
+    const unsigned char *verifyCode,
+    unsigned char dataPath);
+
+#endif //#ifndef HSMC4_ECC_H
+