内存分配及赋值问题

z z46

Expert 2190 points

Other Parts Discussed in Thread: CC2640R2F

芯片：CC2640R2F

工程：simpleperipheral

问题：自己重写NPI模块的发射函数，其中有一段为数据分配内存并加入队列的操作，实际中发现输出的字符与输入不同，加入打印log的函数发现，memcpy失败，想求问题在哪，我看了好久没看出。

以下为程序

void NPITask_sendToHost(uint8_t *pMsg, uint8 size)
{
    ICall_CSState key;
    NPIUSER_QueueRec *recPtr;
    NPIUser_msg_t *npiMsg;
    recPtr = (NPIUSER_QueueRec *)ICall_malloc(sizeof(NPIUSER_QueueRec));
    npiMsg = ICall_malloc(sizeof(NPIUSER_QueueRec)+size);

    if(!recPtr)
    {
      return;
    }



    if(npiMsg->pBuf)
    {
        memcpy(npiMsg->pBuf,pMsg,size);
    }
    npiMsg->pBufSize = size;

    SC_Log_info4("npiMsg data: %02x, %02x, %02x, %02x",\
                 npiMsg->pBuf[0],npiMsg->pBuf[1],npiMsg->pBuf[2],npiMsg->pBuf[3]);
    SC_Log_info4("pMsg data: %02x, %02x, %02x, %02x",\
                 pMsg[0],pMsg[1],pMsg[2],pMsg[3]);
    recPtr->npiMsg = npiMsg;

    recPtr->npiMsg->pBufSize = size;
    SC_Log_info5("recPtr,len: %d, data: %02x, %02x, %02x, %02x",recPtr->npiMsg->pBufSize,\
                           recPtr->npiMsg->pBuf[0],recPtr->npiMsg->pBuf[1],recPtr->npiMsg->pBuf[2],recPtr->npiMsg->pBuf[3]);
    // Enter CS to prevent higher priority tasks
    // from also enqueuing msg at the same time
    key = ICall_enterCriticalSection();

    Queue_put(npiTxQueue, &recPtr->_elem);
    Event_post(syncEvent, NPITASK_TX_READY_EVENT);

    ICall_leaveCriticalSection(key);
}

输出日志如下：