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OMAPL138B-EP: Power consumption of interfaces

Prodigy 80 points

Replies: 5

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Part Number: OMAPL138B-EP

Hi,
I am using OMAPL138 and I want to reduce power consumption by disabling clock of some interfaces. Are there any documents with power consumption of interfaces (like UART, McBSP,...)  based on their frequency? 

  • Hi Dmitiry

    I would recommend starting with the power estimation tool to estimate the power savings for changing device voltage, frequency and peripheral clock frequencies or clock gating etc

    What OS are you using with OMAP L138?

    Regards

    Mukul

  • In reply to Mukul Bhatnagar:

    I am using SYS/BIOS 6.73.0.12. I have already used voltage and frequency scaling. But I am using real time application with high requirements and now I want periodically turn off and on some interfaces. I want to know how much I can benefit from this. 

  • In reply to Dmitriy Darashenka:

    Ok Dmitriy

    I recommend looking at the power estimation spreadsheet in the previous post to understand the degree of savings for various frequency and clock disabling options. 

    Regards

    Mukul

  • In reply to Mukul Bhatnagar:

    Thank you. At first I did not find a link to the table, but now i did. 

  • In reply to Dmitriy Darashenka:

    Dmitriy

    Ok, yes want to make sure that you access the power estimation spreadsheet that is embedded in the link of the application note

    I will go ahead and close this post.

    Regards

    Mukul 

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