Difference: IPaddressAssignment (25 vs. 26)

Revision 2604 Nov 2020 - ChristopherCosby

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META TOPICPARENT	name="HcalDTC"

AMC13 IP and MAC Address Assignment

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The address is 192.168.z.x

Final Byte for Spartan Chip (T2) = 254 - 2*SN[6:0]
Final Byte for Virtex/Kintex Chip (T1) = 255 - 2*SN[6:0].

Changed:

<
< z is 1 for SN 0-127 and 2 for SN 128-255 and 3 for SN 256-383.

>
> z is 1 for SN 0-127 and 2 for SN 128-255 and 3 for SN 256-383.

N.B.Serial numbers 0, 128, 256 are not used as it would result in IP address ending in 255, which can cause troubles on some networks.

Line: 35 to 37

See https://twiki.cern.ch/twiki/bin/viewauth/CMS/CMSCommonMacAddresses

Firmware review reveals-

Changed:

<
<

  nSN <= not SerialNumber;
  mac => x"080030f30" & "000"                  & not nSN(7 downto 6) & '0' & nSN(5 downto 0)   #old T2
  mac => x"080030f30" & '0' & not nSN(8) & '0' & not nSN(7 downto 6) & '0' & nSN(5 downto 0),  #new T2
  mac <= x"080030f30" & '0' & not nSN(8) & '0' & not nSN(7 downto 6) & '1' & nSN(5 downto 0);  #all T1

>
>

  nSN <= not SerialNumber;
  mac => x"080030f30" & "000"                  & not nSN(7 downto 6) & '0' & nSN(5 downto 0)   #old T2
  mac => x"080030f30" & '0' & not nSN(8) & '0' & not nSN(7 downto 6) & '0' & nSN(5 downto 0),  #new T2
  mac <= x"080030f30" & '0' & not nSN(8) & '0' & not nSN(7 downto 6) & '1' & nSN(5 downto 0);  #all T1

So all MAC addr start with 08-00-30-F3.

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and 04-00 to 05-FF for AMC13 serial# 256-511.

-- EricHazen - 21 Mar 2016

Added:

>
>

IP and MAC Address Calculator

Download and run this python script ($ python addressCalc.py -s serial_no), to get a quick printout of the IP and MAC address for a given SN

-- Christopher Cosby - 04 Nov 2020

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