2009-05-27 08:54:31 how to access i2c as a slave in BF537
Adam W (POLAND)
Message: 74646
I want to communicate via i2c (it can be smbus), but BF537 must be a SLAVE device.
I looked at documentation, examples, sources of drivers, bo I cannot find anything usefull (all is
So questions:
1. how to open driver as a ic2 slave ? (slave device doesnt drive a SCK line)
2. how to setup my own i2c hardware address ? Master device doesnt need it, but in slave device it should be changable.
3. how to detect that master wants to read or write data to me ?
4. is it posiible to use smbus protocol ?
with best regards,
xadamus
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2009-05-27 14:06:09 Re: how to access i2c as a slave in BF537
Mike Frysinger (UNITED STATES)
Message: 74655
there is no support for using the I2C as a slave. you'll have to write your own device driver from scratch.
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2009-05-27 16:41:12 Re: how to access i2c as a slave in BF537
Adam W (POLAND)
Message: 74671
eeh, my own device driver.. ? it doesnt sound easy..
so where can i find source of oryginal device driver for BF537 ?
> there is no support for using the I2C as a slave. you'll have to write your own device driver from scratch.
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2009-05-27 17:05:18 Re: how to access i2c as a slave in BF537
Robin Getz (UNITED STATES)
Message: 74673
Adam:
The source - is part of the linux kernel -- linux-2.6.x/drivers/i2c/busses/i2c-bfin-twi.c
-Robin
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2009-11-06 21:32:49 Re: how to access i2c as a slave in BF537
Adrien Cottenceau (CANADA)
Message: 82141
Adam,
Did you find a way to use the BF537 as an i2c salve?
thanks.
Adrien.
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2009-11-06 21:42:34 Re: how to access i2c as a slave in BF537
Adrien Cottenceau (CANADA)
Message: 82142
Adam,
Did you find a way to use the BF537 as an i2c salve?
Or is it possible to use it with the SMBUS mode? ( i.e. no SCK control)
thanks.
Adrien.
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2009-11-10 14:48:26 Re: how to access i2c as a slave in BF537
Oussema Harbi (TUNISIA)
Message: 82257
Adam ,Adrian
Did you found any way to access the BF537 as an i2c slave ?
Am interrested if any of you started developping a new drive.
I don't have a bf537 available now ,so am ready to make the development if one of you accepts to test it for me.
I have exams this week ,but i ll try to make it next week if you re interrested.
Regards ,
Oussema.
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2009-11-11 21:58:09 Re: how to access i2c as a slave in BF537
Adrien Cottenceau (CANADA)
Message: 82279
Oussema,
i didn't start developping a new driver.
But i have a bf537 board ready, so i can test your driver if you want.
Adrien.
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2010-01-15 07:14:57 Re: how to access i2c as a slave in BF537
Adrien Cottenceau (CANADA)
Message: 84652
Any news?