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Discussion Groups | TMS320C54x | C542x familly

Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).

  

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C542x familly - Author Unknown - Sep 28 1:11:00 1999

Hi Everyone.

I have severals questions about how peoples are using the C542x familly,
from a software
stand point. I am desining a chip, right now and feedback from you guys are
important, because eventually,
I am sure, you will deal with it. I am trying to make it "software
friendly" :-)))

1) Did somebody is using the EMIF interface with the C5420 or C5421 DSPs or
most of you are using the HPI port (it's a hardware question, I know but I
need to ask).
Is the internal memory is big enough to store all your codes.

2) If the answer of the question 1) is yes, because the port is shared by
the HPI and the EMIF, how the external
world (CPU) knows when the interface is setup to the HPI port (C5420) ???

3) Do you need a separate reset signal for each core, or 1 per DSP is
sufficient for your
application. ( I heard about a core reset problem. Is it true ??)

4) Do you like to use interrupt to transfer data out from the DSP or
polling from the CPU is
OK with you.

5) When the CPU send data to the DSP memory, is it make sense to assume
that the data is
store only in a continuous address memory mapping.

6) Same when the CPU is reading data from the memory. Do you store data in
a continuous location
or you are partionning the data in a different memory location. Thanks for your feedback, Bruno Latulippe
Senior ASIC Engineer
Tundra Semiconductor






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