local poweron_pin = 46    -- 赋值poweron引脚编号

local power_off_flag = false  -- 是否正在关机

local count=0    -- 五秒内短按三次关机

local function pwrkeycb() 
    log.info("poweron_key", gpio.get(poweron_pin))
    if gpio.get(poweron_pin) == 0 then
        count=count+1
        sys.timerStart(function()
            log.info("计数归零")
            count=0
        end, 5000)
        if count>=3 then
            power_off_flag = true
            -- pm.shutdown() 
        end
    end
end


if poweron_pin ~= 255 then
    gpio.setup(poweron_pin, pwrkeycb, gpio.PULLUP,gpio.BOTH)
else
    log.info("bsp not support")
end



sys.taskInit(function()
    while true do
        if power_off_flag then
          sys.wait(1000)
          pm.shutdown() 
        end

        sys.wait(100)
    end
end)