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Parallel Cable IV

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mazamshahid

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Jan 15, 2009, 11:26:40 AM1/15/09
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Dear All,

I am working on Xilinx EDk and microblaze. I am facing some problems while
downloading my .bit file onto FPGA. Sometimes FPGA is programmed
successfully and sometimes it fails. Are some other people facing such
problem? What might be the possible reasons? Somebody please advise me...

Azam


M.Randelzhofer

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Jan 15, 2009, 12:04:20 PM1/15/09
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"mazamshahid" <mazam...@yahoo.com> schrieb im Newsbeitrag
news:f6KdnZ7UIM9d_vLU...@giganews.com...

Parallel Cable IV is BS.

Only every second download or other PIV cable function in EDK is successful.

The USB cables work as advertised.

For FPGA issues you'd better use comp.arch.fpga.

MIKE

--
www.oho-elektronik.de
OHO-Elektronik
Michael Randelzhofer
FPGA und CPLD Mini Module
Klein aber oho !
Kontakt:
Tel: 08131 339230
m...@oho-elektronik.de
Usst.ID: DE130097310

CRC

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Feb 1, 2009, 2:36:21 PM2/1/09
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M.Randelzhofer wrote:
> "mazamshahid" <mazam...@yahoo.com> schrieb im Newsbeitrag
> news:f6KdnZ7UIM9d_vLU...@giganews.com...
>> Dear All,
>>
>> I am working on Xilinx EDk and microblaze. I am facing some problems while
>> downloading my .bit file onto FPGA. Sometimes FPGA is programmed
>> successfully and sometimes it fails. Are some other people facing such
>> problem? What might be the possible reasons? Somebody please advise me...
>>
>> Azam
>>
>>
>
> Parallel Cable IV is BS.
>
> Only every second download or other PIV cable function in EDK is successful.
>
> The USB cables work as advertised.
>
> For FPGA issues you'd better use comp.arch.fpga.
>
> MIKE


It works fine if you cut the data clock rate to something less than
1MHz. I vaguely recall a 250kHz option or something close to that,
which takes a bit of fussing to figure out how to set it (I use Impact
with an older version of Webpack, since the new versions are
pathetically huge).

--
_____________________
CRC
cr...@REMOVE-THIS.sbcglobal.net
SuSE 10.3 Linux 2.6.22.17

FreeRTOS.org

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Feb 1, 2009, 4:13:10 PM2/1/09
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"mazamshahid" <mazam...@yahoo.com> wrote in message
news:f6KdnZ7UIM9d_vLU...@giganews.com...


I had the same problem. Turned out in the end to work fine provided I first
unplugged the power from my laptop so it was running on battery power only.
Unplugging the power makes the CPU clock speed half, so I guess this is the
issue.

--
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Richard.

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