这个函数是AWR1642的SDK2.0中cli.c第216行给出的代码，我不太明白他有什么用，我贴出代码以供参考

static void CLI_task(UArg arg0, UArg arg1)
{
    uint8_t                 cmdString[256];
    char*                   tokenizedArgs[CLI_MAX_ARGS];
    char*                   ptrCLICommand;
    char                    delimitter[] = " \r\n";
    uint32_t                argIndex;
    CLI_CmdTableEntry*      ptrCLICommandEntry;
    int32_t                 cliStatus;
    uint32_t                index;

    /* Do we have a banner to be displayed? */
    if (gCLI.cfg.cliBanner != NULL)
    {
        /* YES: Display the banner */
        CLI_write (gCLI.cfg.cliBanner);
    }

    /* Loop around forever: */
    while (1)
    {
        /* Demo Prompt: */
        CLI_write (gCLI.cfg.cliPrompt);

        /* Reset the command string: */
        memset ((void *)&cmdString[0], 0, sizeof(cmdString));

        /* Read the command message from the UART: */
        UART_read (gCLI.cfg.cliUartHandle, &cmdString[0], (sizeof(cmdString) - 1));

        /* Reset all the tokenized arguments: */
        memset ((void *)&tokenizedArgs, 0, sizeof(tokenizedArgs));
        argIndex      = 0;
        ptrCLICommand = (char*)&cmdString[0];

        /* comment lines found - ignore the whole line*/
        if (cmdString[0]=='%') {
            CLI_write ("Skipped\n");
            continue;
        }

        /* Set the CLI status: */
        cliStatus = -1;

        /* The command has been entered we now tokenize the command message */
        while (1)
        {
            /* Tokenize the arguments: */
            tokenizedArgs[argIndex] = strtok(ptrCLICommand, delimitter);
            if (tokenizedArgs[argIndex] == NULL)
                break;

            /* Increment the argument index: */
            argIndex++;
            if (argIndex >= CLI_MAX_ARGS)
                break;

            /* Reset the command string */
            ptrCLICommand = NULL;
        }

        /* Were we able to tokenize the CLI command? */
        if (argIndex == 0)
            continue;

        /* Cycle through all the registered CLI commands: */
        for (index = 0; index < gCLI.numCLICommands; index++)
        {
            ptrCLICommandEntry = &gCLI.cfg.tableEntry[index];

            /* Do we have a match? */
            if (strcmp(ptrCLICommandEntry->cmd, tokenizedArgs[0]) == 0)
            {
                /* YES: Pass this to the CLI registered function */
                cliStatus = ptrCLICommandEntry->cmdHandlerFxn (argIndex, tokenizedArgs);
                if (cliStatus == 0)
                {
                    CLI_write ("Done\n");
                }
                else
                {
                    CLI_write ("Error %d\n", cliStatus);
                }
                break;
            }
        }

        /* Did we get a matching CLI command? */
        if (index == gCLI.numCLICommands)
        {
            /* NO matching command found. Is the mmWave extension enabled? */
            if (gCLI.cfg.enableMMWaveExtension == 1U)
            {
                /* Yes: Pass this to the mmWave extension handler */
                cliStatus = CLI_MMWaveExtensionHandler (argIndex, tokenizedArgs);
            }

            /* Was the CLI command found? */
            if (cliStatus == -1)
            {
                /* No: The command was still not found */
                CLI_write ("'%s' is not recognized as a CLI command\n", tokenizedArgs[0]);
            }
        }
    }
}