AVR-Chat

magzky02 wrote:
> I made a code to communicate with i2c device and another SMBus device. 
> I believe the protocol is thesame except for speed. I am doing it 
> bitbang method. for the i2c, no problem. but i cont adopt my code for 
> the smbus device. anyone can give me hint on bitbanging smbus? the 
> device is LM95235 (temp sensor). 
>   

What problem are you having with your code and the SMBus? It's defined 
on top of I2C; if you have a working I2C library it should handle SMBus 
OK (though perhaps the timeouts etc. of SMBus wouldn't be handled 
exactly correctly).

Have you read the SMBus specs?

I did a Perl module to do Smart Battery stuff (which is what SMBus was 
designed for); it might help you with the application level. But the 
messaging is very much I2C compatible.

I'm attaching my code in hopes it'll help you.

Ned Konz



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