查看dpu_tool帮助信息

dpu_tool -h
usage :
        dpu_tool  {OPTION} [MODULE]/[PARAMETER]/[value]
                OPTION : h:v:i:u:s:
                            -h : Display this help message
                            -v : Display version string
                            -i : Display information that inquired
                            -u ：upgrade firmware
                            -s : set configuration
                MODULE/PARAMETER/value: command module name , parameter,value.
                Module name example: help, wdt,flash,cfg ...
        example : dpu_tool -i  help -- show help of command
        example : dpu_tool -s  help -- show help of command
        example : dpu_tool -u  help -- show help of command
        example : dpu_tool -i  status/v -- show information of mcu version