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Forum Post: RE: C6455 DDR2 Setup

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Hi Randy,

Sorry for not responding.  I must have missed your response and the project was put on hold. 

I come from a background of 8bit micros so I'm confused where system init functions go and  where sys bios starts.  I'm used to doing system init as part of the preamble of my program.

Any way to answer your questions.

During the debug stage we plan to use CSSv5 and JTAG to load code.  In the final application the boot mode is set to boot from EMIFA where we have flash chip.  In that case we'll have to have a bootloader located at the beginning of flash which set up peripherals and then copies the app to RAM.  Then our program would perform more init and then begin its function.  Is that the correct process?

I'm fairly certain that I solved my DDR2 question by taking the code from the DSK6455 gel file, going through the DDR2 users guide and putting it in a function that gets called before BIOS_start().   I had another function write to the memory addresses in DDR2 and could see the memory change in the debugger. 

Sorry for the late reply but thanks for your help!

Andrew


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