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关于MSP430FR5969 怎么按字节写入到 information memory(FRAM) 中呢?

TI 提供的库  driverlib.h 中有这样一个函数:

//*****************************************************************************
//
//! \brief Write data into the fram memory in byte format.
//!
//! \param dataPtr is the pointer to the data to be written
//! \param framPtr is the pointer into which to write the data
//! \param numberOfBytes is the number of bytes to be written
//!
//! \return None
//
//*****************************************************************************
extern void FRAMCtl_write8(uint8_t *dataPtr,
uint8_t *framPtr,
uint16_t numberOfBytes);

这个函数的FRAM地址是unsigned char* 类型的。而 Information memory 的最小地址也是001800h。那到底该怎么使用这个函数。或者不用这个函数 该怎么按字节写入和读取。