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HPI question

Started by mayu May 30, 2003
Hello everyone,
I use Hpi port to boot DSP5510 and exchange data between host and 5510. It works
OK.
However, when I connected DSP with emulator through JTAG port and start CCS2.1
without running any programe, the host failed to write and read DSP through HPI
port.
But at the same condition the Host can boot DSP5409 and write/read its memroy
correctly.
Can anyone gave me a clue?
Thanks in advance. mayu



Hi Mayu,
I assumed you had able to bring up the 5510
through emulator. Now as for ur host processor & DSP
interfcae through HPI. take care of the following
steps

1> Make sure ur cmd file startup the boot code from
0x10000h( byte address) while loading the code through
CCS.

2> The 5510 should up & running through emulator only
first.

3> All the EHPI interface software configuration
wriiten in the host code should be properly executed.
Then u will be able to see & write data from the
host to the DSP.

I guess u r using 5510 silicon verion 2.0 or above.

Regards
Gagan
--- mayu <> wrote:
> Hello everyone,
> I use Hpi port to boot DSP5510 and exchange data
> between host and 5510. It works OK.
> However, when I connected DSP with emulator through
> JTAG port and start CCS2.1 without running any
> programe, the host failed to write and read DSP
> through HPI port.
> But at the same condition the Host can boot DSP5409
> and write/read its memroy correctly.
> Can anyone gave me a clue?
> Thanks in advance. > mayu >


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