2010-03-20 01:59:43     I2C query

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2010-03-20 01:59:43     I2C query

Loganathan Manokaran (INDIA)

Message: 87492   




I am working with u-boot  "U-Boot 2008.10 (ADI-2009R1-rc2)"  custom board with bf533.


In my custom board we have the GPIO expander with i2c controlled. i need to make use of i2c for this, i need to know how i can do this. is there any sample example / document available in the u-boot which i can refer and do it for my custom board gpio expander device.


Thank you.




2010-03-20 03:03:50     Re: I2C query

Mike Frysinger (UNITED STATES)

Message: 87494   


if you want to use Blackfin GPIOs to bit bang I2C, then look at the BF533-STAMP or BF561-EZKIT and read the top level README


if you need to write your own I2C bus driver, then read the existing I2C bus drivers