MSP430F5529: MSP430F5529 在IAR平台写入主存储器Flash扇区A出错“ User error: Illegal opcode found on address 0x43FA ”

#include <msp430f5529.h>

char value;                                 // 8-bit value to write to seg C

// Function prototypes
void write_BankA(char value);
void copy_C2D(void);

int main(void)
{
  WDTCTL = WDTPW+WDTHOLD;                   // Stop WDT
  value = 1;                                // initialize value

    write_BankA(value++);                    // Write Bank A, increment value
//    copy_C2D();                             // Copy segment C to D
    __no_operation();                       // Loop forever, SET BREAKPOINT HERE
  
  while(1);
}

//------------------------------------------------------------------------------
// Input = value, holds value to write to Bank A
//------------------------------------------------------------------------------
void write_BankA(char value)
{
  unsigned int i;
  char * Flash_ptr;                         // Initialize Flash pointer
  Flash_ptr = (char *) 0x4400;            // Bank A address
  FCTL3 = FWKEY;                            // Clear Lock bit
  FCTL1 = FWKEY+ERASE;                      // Set Erase bit
  _DINT();                                  //no interrupt
  *Flash_ptr = 0;                           // Dummy write to erase Flash seg
  FCTL1 = FWKEY+WRT;                        // Set WRT bit for write operation

  for (i = 0; i < 128; i++)
  {
    *Flash_ptr++ = value;                   // Write value to flash
  }
  while(FCTL3 & BUSY);
  _EINT();
  FCTL1 = FWKEY;                            // Clear WRT bit
  FCTL3 = FWKEY+LOCK;                       // Set LOCK bit
}