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AM1808 - Compatibility With OMAP L138

Hi There,

This is regarding - Compatibility between AM1808 and OMAP L138.

It is said that,  AM1808 and OMAP L138 are Pin to Pin and Software compatible - Thus Can any body address following items :

1. "Having Software and Pin Compatible"Does it mean that any board designed around AM1808 will work as is [without any changes] with OMAP L138 by just replacing AM1808 by OMAP L138?

2. If answer for # 1 is YES - I don't have any query but if NO Then -

 2.1 What are the things must be taken care or  provision must be there on board to make a board compatible for both AM1808 and L138

 2.2 Is there any document available from TI which shows the changes required for replacing from AM1808 with OMAP L138 and vice-a-versa ?

 

Thanks & Regards,

Rizwan Hirani

 

  • Rizwan Hirani

    This is regarding - Compatibility between AM1808 and OMAP L138.

    It is said that,  AM1808 and OMAP L138 are Pin to Pin and Software compatible - Thus Can any body address following items :

    1. "Having Software and Pin Compatible"Does it mean that any board designed around AM1808 will work as is [without any changes] with OMAP L138 by just replacing AM1808 by OMAP L138?

    Yes.  I would clarify the statement to say that any board designed around the OMAP-L138 will work as is when using the AM1808.  The reason I state it this way is that the OMAP-L138 also includes a C674x+ DSP which consumes power as well.  Therefore, a power supply designed for the OMAP-L138 will certainly work for an AM1808.

    Brandon

     

  • In reply to BrandonAzbell:

    Thanks Bradon,

    So what I conclude that, If I am designing Board around AM1808 than I must consider the power requirement of the OMAP-L138 if I want to use board as is for OMAP L138

     

    Thus it is assumed that - rest of the connection are going to same including reserved pin connection , PLL related connection - Input clock requirement etc..for AM1808 and OMAP L138

    Is my assumption correct ?

    Thanks,

    Rizwan Hirani

  • In reply to Rizwan Hirani:

    Correct.

    Brandon

     

  • In reply to BrandonAzbell:

    Thanks . I am closing this thread here only.

  • In reply to Rizwan Hirani:

    One pin that is different is the NMI pin which is on the OMAP-L138 and not on the AM1808,

    Jeff

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    Please click the Verify Answer button on this post if it answers your question.
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    Useful Links:
    OMAP-L1x/C674x/AM18x Debug GEL File

  • In reply to jc-ti:

    Thanks Jeff.

    I will have to take care of this pin in my design of AM1808 board  of I wanted to assembled OMAP L138 on same board as is.

    I was on vacation , couldn't respond fast.

     

    Thanks,

    Rizwan Hirani

  • In reply to BrandonAzbell:

    Hi Brandon,

      I have a quick question regarding the Linux SDK for Sitara AM1810 and OMAP-L138. On this page  http://focus.ti.com/docs/toolsw/folders/print/linuxezsdk-am1810.html

    there is a Real Time Linux SDK available for Sitara AM1810, for the OMAP-L138 the Linux SDK page is the following http://focus.ti.com/docs/toolsw/folders/print/linuxsdk-

    omapl138.html , it does not state Linux Real Time compliance. Could someone use the AM1810 SDK with the OMAP-L138? Is there any patch to Provide Real Time functionality

    to the OMAP-L138 Linux SDK?

     

    Thanks

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