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Query on I2C (TWI) protocol of ADSP 21369

Question asked by umeshnarasalagi on Jun 13, 2015
Latest reply on Jun 17, 2015 by Jithul_Janardhanan

Hi,

I'm facing problem in progrmming an Si5338 ic using TWI of adsp 21369. ADSP 21369 is master and Si5338 ic is slave.

The clock iteslf is not generating properly.

What will be the level of SCLK?

The status message what i am geeting is "An active 0 is sensed on serial data line" . This is bit of master status register of TWI.

FIFO status register says its full and not getting emptied. i.e transfer is not happeing.

Please anybody reply what is wrong here.

I have attached my code here.

 

System clock/peripheral clock=160MHz

SCL clock= fast mode i.e 400KHz

 

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Thanks

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