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TWI process withou interrupt

Question asked by ItamarEliyahu on Jul 15, 2014
Latest reply on Jul 29, 2014 by Harshit.Gaharwar


I am working on ADDSP-21489 and i would like to controll the TWI (I2C) core withou acknoledge interrupt - by polling TWIMPROG flag.

while i do so - i send read command to the peripheral device , using scope i see the response , but the it seems like the data doesn't samples well in the DSP.

i configured  the TWIDCNT to 2 bytes - then TWIEN then i see the signals using scope BUT i didn't see the data in the fifo ( even if TWIRXS indicate 2 bytes in the fifo)

the data get in the fifo just after wait of 100us .

any solution ?