Re: TWI code example for two AVR

"pidy" <danpidal@xxxxxxxxx> wrote in message news:s5Sdnf3WSo4cvpzYnZ2dneKdnZydnZ2d@xxxxxxxxxxxxxxx


pidy wrote:

Will the master always be the master and the slave always the slave?

SioL

yes

Then you don't need to consider master-slave operation.

Graham





uhm... what u mean??

It means you just need to configure one of the AVR as a slave and
the other as a master. Should be pretty easy.

I suggest you setup the master first and than test it with a known working
slave, perhaps eeprom. Once that is working setup the other AVR as a slave
and work on it until the entire system is working.

It may be helpful to have storage scope or logic analyzer to check the bus,
if you get stuck.

C source for slave and master is available from atmel or avrfreaks, its the asm
code that's a bit harder to find from my experience (but it exists as well).

http://www.atmel.com/dyn/products/app_notes.asp?family_id=607
check avr310,avr311 and others

SioL



.

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