Hi Jim,
So to initialize the DRAM controller in the DramServer, do I have
to use the swctl?
Right now, I am calling dram.start() in the c++ code where dram is
the 12th worker, but when I read dramStatus, I still read 16 (i.e.
10000, and initComplete.read was 0).
Thanks,
Albert
On 04/03/2012 11:01 AM, James Kulp wrote:
Hi Albert,
Some "workers" in the bitstream are not considered "application
workers", and thus are not accessible through the C++ API (a.k.a.
Application Control API, or ACI). They should be somehow. Other
workers in this category are the "DP" workers (the DMA streaming
engines), the "SMA" workers (stream-to-message adapters), and the ICAP
worker. These "infrastructure" workers are presently only really
accessible via swctl. Allowing the ACI to access these workers is of
course a good idea. They are in fact accessed (started, and
configured) "under the covers", otherwise nothing would work, but
there is no C++ API for this yet.
Jim
On 4/3/12 10:03 AM, Albert Kwon wrote:
What is the equivalent of this when I'm using the c++ code (a code
like testRpl)? Do I have to use swctl?
Thanks,
Albert
On 04/03/2012 07:11 AM, Shepard Siegel wrote:
See lines 133-135
https://github.com/ShepardSiegel/ocpi/blob/master/bsv/wrk/DramServer_v6.bsv
The only bit that matters is bit 0.
The rest are for debug and may or may not be present based upon
hasDebugLogic
Be sure to wait a second or two after the
reset->unreset->initialize->start sequence before looking, as
read-capture training takes a while and we have not yet made that
long wait built into initialize (as it should be).
Look at testSeq9* if you are unsure of the sequence, e.g.
https://github.com/ShepardSiegel/ocpi/blob/master/bin/testSeq9b2
Please let me know if that was your issue.
-Shep
On Tue, Apr 3, 2012 at 1:05 AM, Albert Kwon <[email protected]
<mailto:[email protected]>> wrote:
Hi Shep,
I have a quick question about dramStatus variable in
DramServer_v6.bsv: is initComplete.read supposed to be 1 when
DRAM is ready?
When I get the value for dramStatus, it is always 16, which
seems like it means appFull = 1, and everything else is 0.
If so, how can I make sure that it is 1?
Thanks,
Albert
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