关于MSP430FR4133写FRAM的怪问题?

2019-03-24 08:41发布

当执行FRAMWrite_uint64((uint64_t *)FRAM_RECORD_ADDRESS,0); 时,后20*4会被修改为0
原来0xffffffff,0xffffffff,被改为0x0000ffff,0x00000000

当执行FRAMWrite_Long((uint32_t *)FRAM_RECORD_ADDRESS, 0);时,后10*4=40会被修改为0
原来0xffffffff,被改为0x0000ffff,

void FRAMWrite_uint64(uint64_t *pFRAM_write_ptr, uint64_t ui64data)
{
        SYSCFG0 &= ~DFWP;
        *pFRAM_write_ptr = ui64data;
        SYSCFG0 |= DFWP;
}

void FRAMWrite_Long(uint32_t *pFRAM_write_ptr, uint32_t ui32data)
{
        SYSCFG0 &= ~DFWP;
        *pFRAM_write_ptr = ui32data;
        SYSCFG0 |= DFWP;
}

#define FRAM_RECORD_ADDRESS  0x1812


FRAMWrite_uint64((uint64_t *)FRAM_RECORD_ADDRESS,0);
FRAMWrite_Long((uint32_t *)FRAM_RECORD_ADDRESS, 0);
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7条回答
QIHAO74
2019-03-24 18:53
 精彩回答 2  元偷偷看……0人看过

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