On 7 Oct 2011, at 17:24 , Joep Suijs wrote:
Interesting issue. My guess would have been that i2c sw is pretty robust, but the hw version still has some issues hidden away. I'll try to reproduce and track it down when I have the chance.
Does i2c_sw wait for an ACK from the slave? If not, is there a timeout? If so, how long?
Waiting for an ACK that never arrives is one of the nasty aspects of I2C, especially during debugging of a new circuit.
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