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[oswald.git] / metawatch / F5xx_F6xx_Core_Lib / HAL_FLASH.c

diff --git a/metawatch/F5xx_F6xx_Core_Lib/HAL_FLASH.c b/metawatch/F5xx_F6xx_Core_Lib/HAL_FLASH.c
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+++ b/metawatch/F5xx_F6xx_Core_Lib/HAL_FLASH.c
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+/*******************************************************************************
+ *
+ * HAL_FLASH.c
+ * Flash Library for flash memory controller of MSP430F5xx/6xx family
+ * 
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ 
+ * 
+ * 
+ *  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 following disclaimer.
+ *
+ *    Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the 
+ *    documentation and/or other materials provided with the   
+ *    distribution.
+ *
+ *    Neither the name of Texas Instruments Incorporated nor the names of
+ *    its contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ *  OWNER OR CONTRIBUTORS 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.
+ * 
+ * Created: Version 1.0 11/24/2009
+ * Updated: Version 2.0 01/18/2011
+ *  
+ ******************************************************************************/
+ 
+#include "msp430.h"
+#include "HAL_FLASH.h"
+
+void Flash_SegmentErase(unsigned int *Flash_ptr)
+{
+  FCTL3 = FWKEY;                            // Clear Lock bit
+  FCTL1 = FWKEY + ERASE;                    // Set Erase bit
+  *Flash_ptr = 0;                           // Dummy write to erase Flash seg
+  while (FCTL3 & BUSY);                     // test busy
+  FCTL1 = FWKEY;                            // Clear WRT bit
+  FCTL3 = FWKEY + LOCK;                     // Set LOCK bit
+}
+
+unsigned char Flash_EraseCheck(unsigned int *Flash_ptr, unsigned int len)
+{
+  unsigned int i;
+  
+  for (i = 0; i < len; i++) {               // was erasing successfull?
+    if (*(Flash_ptr + i) != 0xFF) {
+      return FLASH_STATUS_ERROR;
+    }
+  }
+
+  return FLASH_STATUS_OK;
+}
+
+void FlashWrite_8(unsigned char *Data_ptr, unsigned char *Flash_ptr, unsigned int count)
+{
+  FCTL3 = FWKEY;                            // Clear Lock bit
+  FCTL1 = FWKEY+WRT;                        // Enable byte/word write mode
+  
+  while (count > 0) {
+    while (FCTL3 & BUSY);                   // test busy
+    *Flash_ptr++ = *Data_ptr++;             // Write to Flash
+    count--;
+  }
+
+  FCTL1 = FWKEY;                            // Clear write bit
+  FCTL3 = FWKEY + LOCK;                     // Set LOCK bit
+}
+
+void FlashWrite_16(unsigned int *Data_ptr, unsigned int *Flash_ptr, unsigned int count)
+{
+  FCTL3 = FWKEY;                            // Clear Lock bit
+  FCTL1 = FWKEY+WRT;                        // Enable byte/word write mode
+  
+  while (count > 0) {
+    while (FCTL3 & BUSY);                   // test busy
+    *Flash_ptr++ = *Data_ptr++;             // Write to Flash
+    count--;
+  }
+
+  FCTL1 = FWKEY;                            // Clear Erase bit
+  FCTL3 = FWKEY + LOCK;                     // Set LOCK bit
+}
+
+void FlashWrite_32(unsigned long *Data_ptr, unsigned long *Flash_ptr, unsigned int count)
+{
+  FCTL3 = FWKEY;                            // Clear Lock bit
+  FCTL1 = FWKEY + BLKWRT;                   // Enable long-word write
+  
+  while (count > 0) {
+    while (FCTL3 & BUSY);                   // test busy
+    *Flash_ptr++ = *Data_ptr++;             // Write to Flash
+    count--;
+  }
+
+  FCTL1 = FWKEY;                            // Clear Erase bit
+  FCTL3 = FWKEY + LOCK;                     // Set LOCK bit
+}
+
+void FlashMemoryFill_32(unsigned long value, unsigned long *Flash_ptr, unsigned int count)
+{
+  FCTL3 = FWKEY;                            // Clear Lock bit
+  FCTL1 = FWKEY + BLKWRT;                   // Enable long-word write
+
+  while (count > 0) {
+    while (FCTL3 & BUSY);                   // test busy
+    *Flash_ptr++ = value;                   // Write to Flash
+    count--;
+  }
+
+  FCTL1 = FWKEY;                            // Clear Erase bit
+  FCTL3 = FWKEY + LOCK;                      // Set LOCK bit
+}