Content Comparison

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Note that because of an address conflict on the shared IPMI I²C bus between the programmable input threshold DAC on the CTI-FMC-DIO and a temperature sensor on the AMC525, it is necessary to make a modification to the DIO card .  Fortunately the default DAC output does not need changing, so it is enough to cut the control line to the DAC.

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to reassign the address to an unused address: this done by cutting the track to ADDR1:

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Populating the crate

• The two FMC cards must be placed in the AMC 525 carrier in the correct slots, with the Digital I/O card in slot 0 and the FMC 500 in slot 1.  See the image below to verify the correct configuration:
  
  Note that in order to avoid an I²C collision with an AMC temperature sensor (and thus a MTCA IPMI alert which won't go away) it is necessary to cut a line on the Digital I/O card (is this documented anywhere?
• When placing the AMC cards in the crate it seems that it is necessary to be careful about which cards are (logically) adjacent to the processor card.  To avoid problems, at DLS we have install the processor card in slot 6 and the carrier cards in slots 2 and 3 (note that these slot numbers don't correspond to the PCIe addresses which we'll encounter later).  Specifically, it seems that with the processor card in slot 6 we need to avoid placing a carrier card in slot 5, as otherwise the processor card tries to boot from non-existent mass storage in this slot!
• At this point we recommend that all serial ports are configured with the same data rate.  The default line speed is 115200 8N1 for all ports except for the CPU console which defaults to 9600 8N1.
• Now e-keying must be configured.

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