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Using Only EMIF0 (DDR0 interface).

Jihyun Yoon
Prodigy 10 points
Other Parts Discussed in Thread: TMS320DM8148

My company developed TDA1MED system based on tms320dm8148 and TI_DM814x_BB_REVD.

But, some harware configuration are different from the base.

 

Especially, DDR1 interface is not used and all pins for DDR1 interface is opened.

Can this  kind of hardware configuration be acceptable for normal operation ?

I am not sure about it.

 

If it is OK, the next issue is s/w.

 

U-boot memory configuration(config_ti814x_ddr() ) for dm8148 is only for using both DDR0 and DDR1 interface.

 

In order to use only DDR0, what configurations are supposed to be changed??

 

Best Regards

 

J.H. Yoon

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enblink

Research Institute

Ji-hyun Yoon

 

E jhyoon@enblink.com

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  • 0
    TI__Guru**** 170625 points

    Hi Ji-hyun,

    Jihyun Yoon said:

    Especially, DDR1 interface is not used and all pins for DDR1 interface is opened.

    Can this  kind of hardware configuration be acceptable for normal operation ?

    For how to handle unused pins, refer to DM814x datasheet, section 4.4 Handling Unused Pins.

    Jihyun Yoon said:

    U-boot memory configuration(config_ti814x_ddr() ) for dm8148 is only for using both DDR0 and DDR1 interface.

     

    In order to use only DDR0, what configurations are supposed to be changed??

    Refer to the below link:

    http://processors.wiki.ti.com/index.php?title=TI814x-DDR3-Init-U-Boot#FAQ

    Q. How to enable single EMIF configurations on TI8148 u-boot ?

    BR
    Pavel