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Change the SDRAM frequency before main() call

Question asked by SteMMo on Feb 24, 2017
Latest reply on Mar 2, 2017 by Jithul_Janardhanan

Hi all,

we are building a board cloned from the 21489 demo board.

We have an external MT48LC16M16A2P SDRAM that has some problems; our guess is that it causes a <fatal_error> in <__setup_heaps>.

We'd like to lower the access frequency to SDRAM but the error raises before my C code, then I cannot set a higher divisor.

Is there an initial communication between DSP and SDRAM?

Which parameters it uses?

 

How can i understand the problem ?

Regards

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