TI中文支持网当要写入的数据长度cnt 非4的整数倍，比如我有一条数据包刚好是14个字节，该如何处理？参数要怎么传
不跑协议栈，在bootloader 做代码搬移。
函数原型如下：
/**************************************************************************************************
* @fn HalFlashWrite
*
* @brief This function writes 'cnt' bytes to the internal flash.
*
* input parameters
*
* @param addr – Valid HAL flash write address: actual addr / 4 and quad-aligned.
* @param buf – Valid buffer space at least as big as 'cnt' X 4.
* @param cnt – Number of 4-byte blocks to write.
*
* output parameters
*
* None.
*
* @return None.
**************************************************************************************************
*/
void HalFlashWrite(uint16 addr, uint8 *buf, uint16 cnt)
{
#if defined(WDT_IN_PM1)
WD_KICK();
#endif
#if (defined HAL_DMA) && (HAL_DMA == TRUE)
halDMADesc_t *ch = HAL_NV_DMA_GET_DESC();
HAL_DMA_SET_SOURCE(ch, buf);
HAL_DMA_SET_DEST(ch, &FWDATA);
HAL_DMA_SET_VLEN(ch, HAL_DMA_VLEN_USE_LEN);
HAL_DMA_SET_LEN(ch, (cnt * HAL_FLASH_WORD_SIZE));
HAL_DMA_SET_WORD_SIZE(ch, HAL_DMA_WORDSIZE_BYTE);
HAL_DMA_SET_TRIG_MODE(ch, HAL_DMA_TMODE_SINGLE);
HAL_DMA_SET_TRIG_SRC(ch, HAL_DMA_TRIG_FLASH);
HAL_DMA_SET_SRC_INC(ch, HAL_DMA_SRCINC_1);
HAL_DMA_SET_DST_INC(ch, HAL_DMA_DSTINC_0);
// The DMA is to be polled and shall not issue an IRQ upon completion.
HAL_DMA_SET_IRQ(ch, HAL_DMA_IRQMASK_DISABLE);
HAL_DMA_SET_M8( ch, HAL_DMA_M8_USE_8_BITS);
HAL_DMA_SET_PRIORITY(ch, HAL_DMA_PRI_HIGH);
HAL_DMA_CLEAR_IRQ(HAL_NV_DMA_CH);
HAL_DMA_ARM_CH(HAL_NV_DMA_CH);
FADDRL = (uint8)addr;
FADDRH = (uint8)(addr >> 8);
FCTL |= 0x02; // Trigger the DMA writes.
while (FCTL & 0x80); // Wait until writing is done.
#endif
#if defined(WDT_IN_PM1)
WD_KICK();
#endif
}
Susan Yang：
buf – Valid buffer space at least as big as 'cnt' X 4.
cnt – Number of 4-byte blocks to write.这个函数的功能就是向flash内部的addr地址处写cnt个字节的buf内容。
HalFlashWrite函数中，需要除以4，是因为CC2530 Flash写操作必须是一次4个字节的，所以要除以4，然后向上取整.
