13 Replies Latest reply on Dec 23, 2017 12:07 AM by Intel Corporation

    About Intel Black Box for common redundant power supply format question.

    alanbear3150

      Hello ,

          I reading the CRPS design guide about PMBus Black box Command

      The meaning as below:

       

              Name: MFR_BLACKBOX

              Format: Read Block with PEC (238 bytes)

              Code: DCh

       

      The content have "System Tracking Data(47 bytes)" and "Power supply event data(38 byte per event)",

      and the "Power supply event " can record 5 event,

      so.. the total length of the command as 47 bytes + (38 bytes *5 ) = 237 bytes,

       

      I calculated the result with the design guide length is not equal (238 byte ≠ 237bytes),

       

      Is anyone knew the correct format about this command(DCh) , or can tell me what's detail I missed?

       

       

      Alan Chen,