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VDSP stability?

Started by Unknown August 12, 2000
I worked with the White Mountain Vista ICE Emulator with the 12 ADI
DSP 21060 processors.
The White Mountain emulator looks inconvenient but pretty stable.
I'm trying to work with the same board and with the same White
Mountain emulator but under the Visual DSP. The Visual DSP supports
White Mountain ICE.
My impression that Visual DSP is very unstable when working with the
multiply DSP. It hard to load programs more then to one DSP. The
simultaneous debugging becomes almost impossible because processors
hung. This almost newer happened when I worked with the Vista ICE.
Does anybody works with the multiply ADI processors under visual DSP?
Is it stable enough? Does PCI or USB emulators works better the ISA
ones?

Slavik Wexler



Don't know if this applies to you, but are you using one plug-pack
to power the various boards and emulator? If so, check for ripple
on the 5V supply.

wrote:
>
> I worked with the White Mountain Vista ICE Emulator with the 12 ADI
> DSP 21060 processors.
> The White Mountain emulator looks inconvenient but pretty stable.
> I'm trying to work with the same board and with the same White
> Mountain emulator but under the Visual DSP. The Visual DSP supports
> White Mountain ICE.
> My impression that Visual DSP is very unstable when working with the
> multiply DSP. It hard to load programs more then to one DSP. The
> simultaneous debugging becomes almost impossible because processors
> hung. This almost newer happened when I worked with the Vista ICE.
> Does anybody works with the multiply ADI processors under visual DSP?
> Is it stable enough? Does PCI or USB emulators works better the ISA
> ones?
>
> Slavik Wexler
>
--
*******************************************
* Russell Shaw, B.Eng, M.Eng(Research) *
* email: *
* Australia *
*******************************************


On Sat, 12 Aug 2000 15:05:39 -0000, wrote:

> My impression that Visual DSP is very unstable when working with the
> multiply DSP. It hard to load programs more then to one DSP.

I haven't used Vista. How did they make it easier? With VDSP I either
select one DXE per processor or select a set from "Recent Programs".

> The
> simultaneous debugging becomes almost impossible because processors
> hung. This almost newer happened when I worked with the Vista ICE.

I envy you. I use VDSP with 2 21065L's. When VDSP first came out and
this happened it was necessary to shut down the debugger, unplug the
ICE from the target, and reset the target. (The 21065L has an
integrated wait state generator which I initialize with a known good
boot prom. If the CPU attempts to access a region for which ACK never
arrives, a core hang is guaranteed. VDSP can't seem to recover from
this on its own.)

> Does anybody works with the multiply ADI processors under visual DSP?
> Is it stable enough? Does PCI or USB emulators works better the ISA
> ones?

What is enough? I can work, and the program is much better (more
stable, more recoverable, faster) than it's initial release, but a lot
of improvement is possible.

I use the Summit-ICE (PCI) version and it's usable.

We've made initial attempts with the Aspex-ICE (USB) under Win95 (since
VDSP can't be installed yet on Win2K) but recovering from hangs is even
more painful with the USB pod: One must power down the pod (ie. unplug
it), power it up for 30 seconds *before* plugging it into the PC's USB
port, and then start VDSP. The pod does not give an indication of when
it's done booting and it's ok to plug it in to the PC.

Kenneth Porter
Kensington Laboratories, Inc.
mailto:
http://www.kensingtonlabs.com