MetaMotion R Firmware update

Comments

• Eric

  January 2019

  • What version are you trying to update to?
  • Can the iOS MetaBase app update the firmware?
• fryjs

  January 2019

  I'm not specifying the build to update to, so it should be the latest (1.4.4). Metabase can update the firmware
• fryjs

  January 2019 edited January 2019

  Metabase on iOS successfully updates the firmware yes. In my app I:

  • connect to 5 metawear devices
  • call metawear.checkForFirmwareUpdate() on all of them which returns FirmwareBuild values indicating new firmware versions are available, which is correct (the devices are on 1.4.2)
  • select a single device to update the firmware of (the others are still connected but not doing anything)
  • call metawear.updateFirmware(delegate: self, build: nil) which gives the error

  I've tried with a single device connected also, but the result is the same (as expected)
• fryjs

  January 2019

  umm, a fix for the swift sdk or am I doing something incorrect?
• Eric

  January 2019 edited January 2019

  Can you post a simple swift function calling the firmware functions that result in the error?
• fryjs

  January 2019 edited January 2019

  After some more investigating it seems modifying the connection parameters causes it to fail:
  This works:

  MetaWearScanner.shared.startScan(allowDuplicates: false) { metawear in         
      if self.metawear == nil {
          self.metawear = metawear
          MetaWearScanner.shared.stopScan()
  
          //connect
          metawear.connectAndSetup().continueOnSuccessWith { _ in
              metawear.flashLED(color: UIColor.white, intensity: 1, _repeat: 255, onTime: 1000, period: 2000)
              mbl_mw_settings_set_tx_power(metawear.board, 4)
  
          //read battery
          }.continueOnSuccessWithTask {
              return mbl_mw_settings_get_battery_state_data_signal(metawear.board).read()
  
          //abort if battery < 50, otherwise check for firmware update
          }.continueOnSuccessWithTask { batteryData -> Task<FirmwareBuild?> in
              let mblBatteryState = batteryData.valueAs() as MblMwBatteryState
              print ("Battery charge: \(mblBatteryState.charge)")
  
              guard mblBatteryState.charge >= 50 else { return Task<FirmwareBuild?>(error: MetaWearError.operationFailed(message: "Battery must have at least 50% charge"))  }
  
              return metawear.checkForFirmwareUpdate()
  
          //update firmware
          }.continueOnSuccessWithTask { firmwareBuild in
              print (firmwareBuild?.firmwareRev ?? "Firmware is already the latest version")
              return firmwareBuild == nil ? Task<()>(()) : metawear.updateFirmware(delegate: self, build: nil)
  
          //results
          }.continueOnSuccessWith {
              print ("success")
  
          }.continueOnErrorWith {error in
              print (error)
  
          }
      }
  }
  

  This doesn't:

  MetaWearScanner.shared.startScan(allowDuplicates: false) { metawear in       
      if self.metawear == nil {
          MetaWearScanner.shared.stopScan()
          self.metawear = metawear
  
          //connect
          metawear.connectAndSetup().continueOnSuccessWith { _ in
              metawear.flashLED(color: UIColor.white, intensity: 1, _repeat: 255, onTime: 1000, period: 2000)
              mbl_mw_settings_set_tx_power(metawear.board, 4)
              mbl_mw_settings_set_connection_parameters(metawear.board, 15, 15, 0, 6000)
  
          //read battery
          }.continueOnSuccessWithTask {
              return mbl_mw_settings_get_battery_state_data_signal(metawear.board).read()
  
          //abort if battery < 50, otherwise check for firmware update
          }.continueOnSuccessWithTask { batteryData -> Task<FirmwareBuild?> in
              let mblBatteryState = batteryData.valueAs() as MblMwBatteryState
              print ("Battery charge: \(mblBatteryState.charge)")
  
              guard mblBatteryState.charge >= 50 else { return Task<FirmwareBuild?>(error: MetaWearError.operationFailed(message: "Battery must have at least 50% charge"))  }
  
              return metawear.checkForFirmwareUpdate()
  
          //update firmware
          }.continueOnSuccessWithTask { firmwareBuild in
              print (firmwareBuild?.firmwareRev ?? "Firmware is already the latest version")
              return firmwareBuild == nil ? Task<()>(()) : metawear.updateFirmware(delegate: self, build: nil)
  
          //results
          }.continueOnSuccessWith {
              print ("success")
  
          }.continueOnErrorWith {error in
              print (error)
  
          }
      }
  }
  

  I can happily live with that, but it seems a strange error to get for that mis-configuration
• Eric

  January 2019

  I agree the behavior is odd, but there is no reason to adjust the connection interval prior to perform the firmware update.