Update PX4 Firmware metadata Fri Aug 9 07:55:08 UTC 2019

src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml

@@ -537,6 +537,11 @@ Set to 2 to use heading from motion capture</short_desc>
 * the MSB bit is not used to avoid problems in the conversion between int and uint</short_desc>
       <long_desc>Default value: (10 &lt;&lt; 0 | 1000 &lt;&lt; 8 | 0 &lt;&lt; 24) = 256010 - authorizer system id = 10 - authentication method parameter = 10000msec of timeout - authentication method = during arm</long_desc>
     </parameter>
+    <parameter default="1" name="COM_ARM_CHK_ESCS" type="INT32">
+      <short_desc>Require all the ESCs to be detected to arm</short_desc>
+      <long_desc>This param is specific for ESCs reporting status. Normal ESCs configurations are not affected by the change of this param.</long_desc>
+      <boolean />
+    </parameter>
     <parameter default="1.73e-3" name="COM_ARM_EKF_AB" type="FLOAT">
       <short_desc>Maximum value of EKF accelerometer delta velocity bias estimate that will allow arming.
 Note: ekf2 will limit the delta velocity bias estimate magnitude to be less than EKF2_ABL_LIM * FILTER_UPDATE_PERIOD_MS * 0.001 so this parameter must be less than that to be useful</short_desc>