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 ?