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Re: [avr-gcc-list] TWI pullup resisor values
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From: |
Ned Konz |
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Subject: |
Re: [avr-gcc-list] TWI pullup resisor values |
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Date: |
Sat, 6 Mar 2004 17:45:12 -0800 |
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User-agent: |
KMail/1.6.1 |
On Saturday 06 March 2004 5:02 pm, Bob Paddock wrote:
> > improper pullups on SDA and SCL are causing this?
> > I'm using 3.3K pullups. Would it be better to
> > just use the internal pullups already part
> > of the port circuitry?
>
> Take a look at the Linear Tech. LTC1642.
Another possibility is to make a simple booster using an analog switch:
http://www.esacademy.com/faq/i2c/q_and_a/faq/i2cqa9.htm
I have used a similar circuit (I first saw the description in some Philips
literature, I think) and it worked well.
--
Ned Konz
http://bike-nomad.com
GPG key ID: BEEA7EFE
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- Re: [avr-gcc-list] TWI pullup resisor values, Bob Paddock, 2004/03/06
- Re: [avr-gcc-list] TWI pullup resisor values,
Ned Konz <=
- Re: [avr-gcc-list] TWI pullup resisor values, Douglas Dotson, 2004/03/07
- Re: [avr-gcc-list] TWI pullup resisor values, Ned Konz, 2004/03/07
- [avr-gcc-list] Re:TWI pullup resisor values - Problem solved, Douglas Dotson, 2004/03/07
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