Lpc2000

Josiah,

Note that manufacturers code on the "A" version of this part is 7 and not 4 
as in code examples for the non "A" PCF8574.

Mike

At 11:46 AM 5/16/2004, you wrote:
>I am trying to get a LPC2106 to talk to a PCF8574A chip which is 8 bit
>I/O expander. I cant seem to get any thing to happen when using the
>I2C example posted in the files section here.
>
>Do I need external pull up resistors on the scl and sda lines?
>
>What initiates a transfer? setting the STA bit in I2CONSET?
>
>Would it be better to use an interupt driven approach? or just
>directly control it in my main loop if I know exactly when I want to
>recieve data?
>
>Thanks
>Josiah
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>Yahoo! Groups Links
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