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void flash_clr(int *ptr)
{
     _DINT();                               //¹ØÖжÏ
     FCTL3 = 0x0A500;              //* Lock = 0 ¿ªËø
     FCTL1 = 0x0A502;              //* Erase = 1 ʹÄܲÁ³ý
    *((int *) ptr) = 0;                  //* ²Á³ý¶Î
}
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       // ×Ö½ÚдÈë
void flash_write_int8(int8_t *ptr, int8_t value)
{
     _DINT();
     FCTL3 = 0x0A500; 


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