Boot adsp21569 with External SDRAM

I'm trying to program the DSP with the LEDBlink source.
I used the cldp.exe and is25lp512m_dpia_21569.dxe file.
All right.

Now, through the .ldf file I wanted to add the management of the external SDRAM. After programmer it no longer worked.
I read that, unlike the ICE1000 debugger, there is a need to set the SDRAM in runtime. I tried in every way a setting but I could not.

I need help!!!!

Some examples are welcome.

I would like to enable the SDRAM external to my project and be able to program everything via cldp.

Thanks Maurizio Felicioni