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MSP430¶ÁдƬÄÚFLASH±£´æÊý¾Ý

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     FLASHÐ͵ÄMSP430µ¥Æ¬»ú¶¼´øÓÐÐÅÏ¢´æ´¢Æ÷SegmengA¼°SegmentB,SegmengA¼°SegmentB¸÷ÓÐ128×Ö£¬SegmentBµÄµØÖ·ÊÇ£º0x01000hµ½0x107F£¬SegmentAµÄµØÖ·ÊÇ£º0x01080hµ½0x010FFh¡£³ÌÐò±»Ð´ÈëMSP430Ö®ºó£¬³ÌÐòͨ¹ýSegmengA¼°SegmentB¾Í¿ÉÒÔ±£´æ²»µôµçÊý¾Ý¡£×¢Ò⣺ÿ´Î³ÌÐòÉÕдµ½MSP430ʱ£¬SegmengA¼°SegmentB¶¼»á±»²Á³ý£¡
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#include <msp430xG43x.h>
void WriteSegment_256 (char index,char *value,char size);
char ReadSegment_256(char index);
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
FCTL2 = FWKEY + FSSEL0 + FN0; // MCLK/2 for Flash Timing Generator

char str1[3]={0xAA,0xBB,0xCC};

WriteSegment_256(0,str1,3);

for(char i=0;i<255;i++)
_NOP();

char str2[3]={0xBB,0xAA,0xCC};
WriteSegment_256(0,str2,3);

}
#define SegmentStart 0x01000 //Segment = 0x01000~0x010FF
#define SegmentSize 255 //SegmentA + SegmentB = 256
//*********************************************************
//¶ÁȡƬÄÚ´æ´¢µÄÊý¾Ý
//*********************************************************
char ReadSegment_256(char index)
{
char *flash_ptr = ((char *) SegmentStart) + index;
return *flash_ptr;
}
// *****************************************************
//°ÑÊý×éдÈëÊý¾Ýµ½Æ¬ÄÚFLASH£¬±ØÐëÏÈÈ«²¿²Á³ýÔÙдÈë
//²ÎÊýindex:±£´æÊý×éµÄλÖÃ
//²ÎÊývalue:Êý×éµÄÖ¸Õë
//²ÎÊýsize:Êý×éµÄ´óС
// *****************************************************
void WriteSegment_256 (char index,char *value,char size)
{
char buffer[SegmentSize],i=0;
char *flash_ptr = (char *) SegmentStart;

//ÏȶÁȡԭFLASHÊý×é
for(i=0;i<SegmentSize;i++)
buffer[i]=ReadSegment_256(i);

//²Á³ýFLASH£¬±ØÐë
FCTL1 = FWKEY + ERASE; // Set Erase bit
FCTL3 = FWKEY; // Clear Lock bit
*f


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