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How can I synchronize the SCL rate by software or hardware?

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kaze

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Dear all,
I wanna ask how I can synchronize the SCL rate by software or hardware. I've manipulated my coding many ways -> (the delay) and the hardware either -> change the pull up R. But I've only could raise my clock rate up to 40KHz. I wanna get 100KHz clock rate. Is there any ideas??

Do I need to post my source code or schematic for u??

Thanks for u're help.


My regrads
 

Re: I2C help again pls

There are some intresting facts on clock synchronization and speed issues in:
"I2C (Inter-Integrated Circuit) Bus Technical Overview and Frequently Asked Questions (FAQ)"
https://www.esacademy.com/faq/i2c/index.htm
Maybe some of these hints will be helpful in solving your I2C bus speed problem ..

Regards,
IanP
 

    K

    kaze

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Re: I2C help again pls

Thx IanP for u're help.
But I still can't increase my SCL rate. I've modify hardware like the article said, but it can only help increase my rise time.
Could u give some references again I'm still confused?!

My regrads,

kaze
 

Re: I2C help again pls

u can download file from
 

    K

    kaze

    Points: 2
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Re: I2C help again pls

hi
i think it can help u
thank
 

    K

    kaze

    Points: 2
    Helpful Answer Positive Rating
Re: I2C help again pls

Do I need to post my source code or schematic for u??
Click to expand...
I'll very useful to analyze your problem.
 

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