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Discussion Groups | Analog Devices DSPs | Booting process in BF533.................

Technical discussions related to Analog Devices DSPs (including Blackfin, TigerSHARC, SHARC and ADSP-21xx DSPs).

  

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Booting process in BF533................. - mall...@yahoo.co.in - Aug 4 9:39:53 2007



Hi! iam new to DSP processors ,,,
Iam presently using BF533ezkit-lite....

Iam having problems with the booting process...Iam mainly concentrating in booting from
external memory(bypass bootrom=>bmode=01)and booting from8-/16- bit flash(using boot
rom)....

I have studied in engineering note-240 from anlog devices that for both the booting methods we
first dump the code to external flash memory..

if Bmode=00; bootrom will be bypassed....processor directly run from external memory....

and if Bmode=01;Boot Rom will come into effect and it will take the loader file and according
to header of the block each  block will be loaded into internal memory(L1 memory ) and then
after total is loaded running start from the internal memory.......

Is this interpretation is right or wrong ..
Because in hardware manual of BF533 they have given this paragraph
"For each Boot mode, user code read in from the memory device is placed
at the starting location of L1 memory. Additional sections are read into
internal memory as specified within headers in the loader file. The boot
kernel terminates the boot process with a jump to the start of the L1
instruction memory space. The processor then begins execution from this
address."

here they are telling for every boot mode we have to load to L1 internal memory.............
Iam very much confused..

please help..... 

Thank u in adwance.....



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