MSP430fr5739的FLASH操作问题

MSP430WARE下面有写FRAM例程，如下。

读的话比较简单，定义指针直接指向这个地址就可以。

#include <msp430.h>

void FRAMWrite(void);

unsigned char count = 0;
unsigned long *FRAM_write_ptr;
unsigned long data;

#define FRAM_TEST_START 0xCA00

int main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
// Configure MCLK for 8MHz operation
CSCTL0_H = 0xA5;
CSCTL1 |= DCOFSEL0 + DCOFSEL1; // Set max. DCO setting
CSCTL2 = SELA_0 + SELS_3 + SELM_3; // ACLK = VLO
CSCTL3 = DIVA_0 + DIVS_1 + DIVM_1; // MCLK = SMCLK = DCO/2

// Turn off temp sensor
REFCTL0 |= REFTCOFF;
REFCTL0 &= ~REFON;

// Turn on LED
P1DIR |= BIT0;
// Initialize dummy data
data = 0x11111111;

while(1)
{
data += 0x00010001;
FRAM_write_ptr = (unsigned long *)FRAM_TEST_START;
FRAMWrite(); // Endless loop
count++;
if (count > 100)
{
P1OUT ^= 0x01; // Toggle LED to show 512K bytes
count = 0; // ..have been written
data = 0x11111111;
}

}

}

void FRAMWrite (void)

{
unsigned int i=0;

for ( i= 0; i<128; i++)
{
*FRAM_write_ptr++ = data;
}

}

楼主你好，你想复杂了。对FRAM的操作和对RAM的操作基本上是一样的，直接读写就可以。

只要把数据存储在fram上，掉电是不会丢失的。而且fram的读写就像ram的操作一样简单。