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EVMK2EX: NON-ECC DDR3 cause system hang

Albert Cheng
Prodigy 40 points
Part Number: EVMK2EX

Hi,

I change the DDR3 so-dimm to a 4GB NON-ECC one.

Set ECCCTL to 0 (ECC disabled)

After Boot into POST. Read DRAM Address 0x80000000 cause system hang

Use any size of DDR3 w/o ECC, system still hang.

The same configuration for any other dimms with ECC has no this problem.

Is there any other register need to set for  DDR3 Controller?

Any solution can support NON-ECC DDR3 on EVMK2EX?

  • 0
    TI__Mastermind 31535 points

    Hi,

    No, only ECC can be used. Please see section 3.2.8 of the EVM user guide.

    https://www.ti.com/lit/pdf/spruin5 

    3.2.8 DIMM1, DDR3 SO-DIMM Socket DIMM1 is 204-pin DDR3 Socket type for external expansion. For compatibility, you can only use the DDR3 SODIMM of ECC type. If you use the general standard type will cause not compatible. ECC and non-ECC different pin definitions, please refer to the specification of the SO-DIMM module.

    Regards,

    Kevin