parallel port

[Simone Winkler]

I tried to connect my fpga board through a parallel cable to my PC - when i
run boundary scan mode in IMPACT, it doesn't recognize the connection.
I know that it worked with other PCs - i think it's dependent on the
configuration of the parallel port (ECP...) - but do you know what i can do
to be able to connect my board? Which configuration settings have to be done
for my parallel port - are there any in the BIOS?

thank you,

simone

 

[Peter Seng]

"Simone Winkler" <simone.winkler@gmx.at> schrieb im Newsbeitrag
news:1062440513.66052@news.liwest.at...

I tried to connect my fpga board through a parallel cable to my PC - when
i
run boundary scan mode in IMPACT, it doesn't recognize the connection.
I know that it worked with other PCs - i think it's dependent on the
configuration of the parallel port (ECP...) - but do you know what i can
do
to be able to connect my board? Which configuration settings have to be
done
for my parallel port - are there any in the BIOS?

thank you,

simone

We did a lot of work on parallel port based system, conclusion is that
setting the parallel port to ECP or EPP+ECP gives most problems.
What kind of download cable is in use??? (only have experience with Xilinx
DLC5)
Just trie the other settings in PC BIOS setup (go into BIOS setup at boot
time, before system startup).
So try all other mode settings in following order:
1.) SPP (standard parallel port, 8-bit out/4-bit in)
2.) PS2 (also called enhanced or bi-directional, software controlled 8-bit
out/8-bit in )
3.) EPP(enhanced parallel port, hardware controlled 8-bit out/8-bit in )
All three modes should be compatible with Xilinx parallel download cable
(DLC5).
There may be a mode called EPP+ECP, but in most cases it gives more problems
as ECP mode.
good luck!


with best regards,

Peter Seng


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tel +7161-75245
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eMail p.seng@seng.de
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[Chen Wei Tseng]

Simone,

You may also want to take a look at soln 15742. It covers basic cable
connection debugging tips.

http://support.xilinx.com/xlnx/xil_ans_display.jsp?iLanguageID=1&iCountryID=1&getPagePath=15742

If this solution doesn't resolve your connection issue, please do
contact the Xilinx supports.

http://support.xilinx.com/support/techsup/tappinfo.htm

Regards, Wei
Xilinx Applications

Simone Winkler wrote:

I tried to connect my fpga board through a parallel cable to my PC - when i
run boundary scan mode in IMPACT, it doesn't recognize the connection.
I know that it worked with other PCs - i think it's dependent on the
configuration of the parallel port (ECP...) - but do you know what i can do
to be able to connect my board? Which configuration settings have to be done
for my parallel port - are there any in the BIOS?

thank you,

simone