1 /*******************************************************************************
4 * Flash Library for flash memory controller of MSP430F5xx/6xx family
7 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
14 * Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
17 * Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the
22 * Neither the name of Texas Instruments Incorporated nor the names of
23 * its contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 * Created: Version 1.0 11/24/2009
39 * Updated: Version 2.0 01/18/2011
41 ******************************************************************************/
44 #include "HAL_FLASH.h"
46 void Flash_SegmentErase(unsigned int *Flash_ptr)
48 FCTL3 = FWKEY; // Clear Lock bit
49 FCTL1 = FWKEY + ERASE; // Set Erase bit
50 *Flash_ptr = 0; // Dummy write to erase Flash seg
51 while (FCTL3 & BUSY); // test busy
52 FCTL1 = FWKEY; // Clear WRT bit
53 FCTL3 = FWKEY + LOCK; // Set LOCK bit
56 unsigned char Flash_EraseCheck(unsigned int *Flash_ptr, unsigned int len)
60 for (i = 0; i < len; i++) { // was erasing successfull?
61 if (*(Flash_ptr + i) != 0xFF) {
62 return FLASH_STATUS_ERROR;
66 return FLASH_STATUS_OK;
69 void FlashWrite_8(unsigned char *Data_ptr, unsigned char *Flash_ptr, unsigned int count)
71 FCTL3 = FWKEY; // Clear Lock bit
72 FCTL1 = FWKEY+WRT; // Enable byte/word write mode
75 while (FCTL3 & BUSY); // test busy
76 *Flash_ptr++ = *Data_ptr++; // Write to Flash
80 FCTL1 = FWKEY; // Clear write bit
81 FCTL3 = FWKEY + LOCK; // Set LOCK bit
84 void FlashWrite_16(unsigned int *Data_ptr, unsigned int *Flash_ptr, unsigned int count)
86 FCTL3 = FWKEY; // Clear Lock bit
87 FCTL1 = FWKEY+WRT; // Enable byte/word write mode
90 while (FCTL3 & BUSY); // test busy
91 *Flash_ptr++ = *Data_ptr++; // Write to Flash
95 FCTL1 = FWKEY; // Clear Erase bit
96 FCTL3 = FWKEY + LOCK; // Set LOCK bit
99 void FlashWrite_32(unsigned long *Data_ptr, unsigned long *Flash_ptr, unsigned int count)
101 FCTL3 = FWKEY; // Clear Lock bit
102 FCTL1 = FWKEY + BLKWRT; // Enable long-word write
105 while (FCTL3 & BUSY); // test busy
106 *Flash_ptr++ = *Data_ptr++; // Write to Flash
110 FCTL1 = FWKEY; // Clear Erase bit
111 FCTL3 = FWKEY + LOCK; // Set LOCK bit
114 void FlashMemoryFill_32(unsigned long value, unsigned long *Flash_ptr, unsigned int count)
116 FCTL3 = FWKEY; // Clear Lock bit
117 FCTL1 = FWKEY + BLKWRT; // Enable long-word write
120 while (FCTL3 & BUSY); // test busy
121 *Flash_ptr++ = value; // Write to Flash
125 FCTL1 = FWKEY; // Clear Erase bit
126 FCTL3 = FWKEY + LOCK; // Set LOCK bit