The VYBRID_SAMPLE_CODE from the website includes an DRAM init Script for the DS-5 Debugger.
However it seems it doesn't correctly initialize the Vybrid Tower Samsung Memory.
I modified some register settings and got this script works now for my Vybrid Tower Kit.
Care must be taken when you again initialize clocks etc in your C Project because most of PLLs etc are already setup in the script.
Regards,
Hans-Peter