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HELP: Can TWI be used during ADSP's booting?

Question asked by YoungJ on Nov 7, 2013
Latest reply on Nov 14, 2013 by Harshit.Gaharwar

I'm working on a 21489 board .

As my code is Encrypted before fused to the flash, I have to firstly deliver the flash data to decrypt through the TWI, during the boot stage.

What pazzled me is:

(1) Can I use the twi ports during the booting?


(2) As I copied the data to the decryptor and then throw them to the RAM in the boot-kernel, the 256 instructions rule of the boot-kernel would be broken, what should I do to avoid this situtation?


Hope for help!


John Young