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Re: [AVR-Chat] question about bit banged and TWI

2006-12-21 by Leon Heller

----- Original Message ----- 
From: "maria mastik" <maman_barghi2000@yahoo.com>
To: <AVR-Chat@yahoogroups.com>
Sent: Wednesday, December 20, 2006 11:20 AM
Subject: [AVR-Chat] question about bit banged and TWI


> Hi everybody
>  can anyone please tell me that what is bit banged comunication?

It's doing something like RS-232 or SPI comms using software by driving pins 
high and low with the correct timings, with delays implemented using delay 
loops or a timer. A disadvantage of the technique is that the processor 
takes up a lot of time handling the comms, and can't do much else whilst 
data is transferred.

Leon
--
Leon Heller, G1HSM
Suzuki SV1000S motorcycle
leon.heller@bulldoghome.com
http://www.geocities.com/leon_heller

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