单转子风扇如何转速控制同时显示在位

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1

问题描述

将单转子的风扇Fan属性里面的RearPresence置0后，网页上不显示在位信息，但是在传感器里是显示正常的在位信息的，这两个地方的在位信息处理有什么不同吗

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2

是通过模拟风扇在位Scanner控制的吗

3 
"Fan_2": {
      "FanId": 2,
      "Slot": 2,
      "Coefficient": 60,
      "FrontPresence": "<=/Scanner_Fan2_Presence.Value",
      "RearPresence": 0,
      "FrontSpeed": "<=/Scanner_Fan2_Speed.Value |> expr(($1 // 32) & 255)",
      "RearSpeed": "<=/Scanner_Fan2_Speed.Value |> expr(($1 // 32) & 255)",
      "HardwarePWM": "#/Accessor_Fan2_PWM.Value",
      "SystemId": 1,
      "FrontStatus": 0,
      "RearStatus": 0,
      "MaxSupportedPWM": 255,
      "IdentifySpeedLevel": 35,
      "Position": "CLU",
      "PowerGood": "<=/Scanner_PowerGood.Value"
    },

风扇属性是把RearPresence0的
如果把 “RearPresence”: 0,改成"RearPresence": “<=/Scanner_Fan2_Presence.Value”,
就不能进行风扇控制了

"Entity_Fan2": {
      "Id": 30,
      "Instance": 97,
      "Name": "Fan2",
      "Presence": "<=/Scanner_Fan2_Presence.Value",
      "PowerState": "<=/Scanner_PowerGood.Value"
    },
"DiscreteEvent_FAN2FPresence": {
      "Property": "<=/Scanner_Fan2_Presence.Value",
      "ListenType": 1,
      "EventData1": 0,
      "EventData2": 255,
      "EventData3": 255,
      "EventDir": "<=/Scanner_Fan2_Presence.Value",
      "Conversion": 1,
      "SensorObject": "#/DiscreteSensor_FAN2FPresence"
    },
"DiscreteSensor_FAN2FPresence": {
      "OwnerId": 32,
      "OwnerLun": 0,
      "EntityId": "<=/Entity_Fan2.Id",
      "EntityInstance": "<=/Entity_Fan2.Instance",
      "Initialization": 99,
      "Capabilities": 64,
      "SensorType": 10,
      "ReadingType": 8,
      "SensorName": "SYSFAN2 Presence",
      "AssertMask": 1,
      "DeassertMask": 1,
      "DiscreteMask": 1,
      "DiscreteType": 0,
      "Unit": 192,
      "BaseUnit": 0,
      "ModifierUnit": 0,
      "RecordSharing": 1,
      "Reading": 0
    },
4

单转子风扇应该是FrontPresence置0吧，可以看thermal_mgmt组件的逻辑

5

前转子在位置0后，接上风扇就会扫不到风扇信息

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"Fan_2": {
      "FanId": 2,
      "Slot": 2,
      "Coefficient": 60,
      "FrontPresence": 0,
      "RearPresence": "<=/Scanner_Fan2_Presence.Value",
      "FrontSpeed": "<=/Scanner_Fan2_Speed.Value |> expr(($1 // 32) & 255)",
      "RearSpeed": "<=/Scanner_Fan2_Speed.Value |> expr(($1 // 32) & 255)",
      "HardwarePWM": "#/Accessor_Fan2_PWM.Value",
      "SystemId": 1,
      "FrontStatus": 0,
      "RearStatus": 0,
      "MaxSupportedPWM": 255,
      "IdentifySpeedLevel": 35,
      "Position": "CLU",
      "PowerGood": "<=/Scanner_PowerGood.Value"
6

你风扇类型有配置单转子类型吗。

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7

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有的，但是识别不到风扇类型

8

你是几pin的风扇，硬件有给风扇在位信号吗。如果有给的话，你配对了，风扇页面至少有个检测在位的信息的。

9

4pin的风扇，硬件是靠检测是否有转速来给在位信号的

10

没有在位信号，你咋配的<=/Scanner_Fan2_Presence.Value这个。

11 
"Scanner_Fan2_Presence": {
      "Chip": "#/Smc_FanBoardSMC",
      "Offset": 402656002,
      "Size": 1,
      "Mask": 1,
      "Type": 0,
      "Period": 2000,
      "Debounce": "None",
      "ScanEnabled": "<=/Scanner_PowerGood.Value",
      "NominalValue": 1,
      "@Default" :{
        "ScanEnabled" : 0
      },
      "Value": 0
    },

CPLD通过SMC命令字给到在位信息

12

你风扇转的情况下，你看下资源树，Fan的实例里面在位信息的值是不是对的，然后通过命令读smc传的在位信息是不是对的上的。我这边适配4pin风扇，cpld给不了在位信号，我是通过cpld给的转速值去判断是否在位。