MSP430FR5962IPNR

参考一下这个www.voidcn.com/.../p-wigflens-hu.html

看例程

//******************************************************************************
//   MSP430FR59xx Demo - Long word writes to FRAM
//
//   Description: Use long word write to write to 512 byte blocks of FRAM.
//   Toggle LED after every 100 writes.
//   NOTE: Running this example for extended periods will impact the FRAM
//   endurance. MPU is also enabled by default in CCS.
//   MCLK = SMCLK = default DCO
//
//           MSP430FR5969
//         ---------------
//     /|\|               |
//      | |               |
//      --|RST            |
//        |               |
//        |               |
//        |          P1.0 |---> LED
//
//   Kathryn Adamsky
//   Texas Instruments Inc.
//   July 2016 (Updated) | August 2012 (Created)
//   Built with IAR Embedded Workbench V5.40 & Code Composer Studio V5.5
//******************************************************************************
#include <msp430.h>

#define WRITE_SIZE 128                           

void FRAMWrite(void);

unsigned char count = 0;
unsigned long data;

#if defined(__TI_COMPILER_VERSION__)
#pragma PERSISTENT(FRAM_write)
unsigned long FRAM_write[WRITE_SIZE] = {0};
#elif defined(__IAR_SYSTEMS_ICC__)
__persistent unsigned long FRAM_write[WRITE_SIZE] = {0};
#elif defined(__GNUC__)
unsigned long __attribute__((persistent)) FRAM_write[WRITE_SIZE] = {0};
#else
#error Compiler not supported!
#endif

int main(void)
{
  WDTCTL = WDTPW | WDTHOLD;                 // Stop WDT

  // Configure GPIO
  P1OUT &= ~BIT0;                           // Clear P1.0 output latch for a defined power-on state
  P1DIR |= BIT0;                            // Set P1.0 to output direction

  // Disable the GPIO power-on default high-impedance mode to activate
  // previously configured port settings
  PM5CTL0 &= ~LOCKLPM5;