ISE 8.2 & XC9500XL family

Hello,

 as many people over this world, I have a problem. The problem is the
connection beetween a CPLD and the WEBPACK ISE 8.2.03 software.
Simptoms like very static: I have an Parallel Cable III, the ISE
software, and a XC9500XL family CPLD. The Impact cannot recognise the
CPLD, for example a simple XC95144XL showed five unknown device in the
JTAG chain on automatic JTAG chain initialize. I' has been tried to add
the device manually, but there is not accepted as a result, because
Impact answers unknown device ID. I'm told each family because tried
with xc9536XL, simptoms are same.
The cable is OK, I using it to program other devices (for example,
XC3S400) on everyday.
On software side, tried an older software (Xilinx Foundation 4) to
program these devices, that programs all without problems.

 The question is what is the problem with ISE 8.2.03 ???

Jozsef schrieb:

> Hello,
>
>  as many people over this world, I have a problem. The problem is the
> connection beetween a CPLD and the WEBPACK ISE 8.2.03 software.
> Simptoms like very static: I have an Parallel Cable III, the ISE
> software, and a XC9500XL family CPLD. The Impact cannot recognise the
> CPLD, for example a simple XC95144XL showed five unknown device in the
> JTAG chain on automatic JTAG chain initialize. I' has been tried to add
> the device manually, but there is not accepted as a result, because
> Impact answers unknown device ID. I'm told each family because tried
> with xc9536XL, simptoms are same.
> The cable is OK, I using it to program other devices (for example,
> XC3S400) on everyday.
> On software side, tried an older software (Xilinx Foundation 4) to
> program these devices, that programs all without problems.
>
>  The question is what is the problem with ISE 8.2.03 ???

Hi

I have not tried XC95xx programming with ISE 8.x but the CPLD fitter
for XC95xx is badly broken so I cant use 8.x tools anyway -

wait - i have ML501 board and impact DOES reconize
XC95144XL in te chain ok, so jtag programming shoud work with 8.x

Antti

Your symptoms suggest a JTAG chain problem and could be reflections on
the chain, poor power supply to JTAG head, poor head connections,
pickup of noise on JTAG. If you are using the flying lead set normally
attached to Cable III head do check the connectors of lead set. These
have a habit breaking eventually. Also check if the TDO line out of the
XC95144XL needs a pullup to operate correctly and it's value. Some
parts do and some don't.

John Adair
Enterpoint Ltd.

Jozsef wrote:
> Hello,
>
>  as many people over this world, I have a problem. The problem is the
> connection beetween a CPLD and the WEBPACK ISE 8.2.03 software.
> Simptoms like very static: I have an Parallel Cable III, the ISE
> software, and a XC9500XL family CPLD. The Impact cannot recognise the
> CPLD, for example a simple XC95144XL showed five unknown device in the
> JTAG chain on automatic JTAG chain initialize. I' has been tried to add
> the device manually, but there is not accepted as a result, because
> Impact answers unknown device ID. I'm told each family because tried
> with xc9536XL, simptoms are same.
> The cable is OK, I using it to program other devices (for example,
> XC3S400) on everyday.
> On software side, tried an older software (Xilinx Foundation 4) to
> program these devices, that programs all without problems.
> 
>  The question is what is the problem with ISE 8.2.03 ???

Hey, programming hardvare is same on each attempt. Using euro
connectors (JTAG connected to it for testing puuposes) . The difference
between successfull and error message is the software only....



John Adair =EDrta:
> Your symptoms suggest a JTAG chain problem and could be reflections on
> the chain, poor power supply to JTAG head, poor head connections,
> pickup of noise on JTAG. If you are using the flying lead set normally
> attached to Cable III head do check the connectors of lead set. These
> have a habit breaking eventually. Also check if the TDO line out of the
> XC95144XL needs a pullup to operate correctly and it's value. Some
> parts do and some don't.
>
> John Adair
> Enterpoint Ltd.
>
> Jozsef wrote:
> > Hello,
> >
> >  as many people over this world, I have a problem. The problem is the
> > connection beetween a CPLD and the WEBPACK ISE 8.2.03 software.
> > Simptoms like very static: I have an Parallel Cable III, the ISE
> > software, and a XC9500XL family CPLD. The Impact cannot recognise the
> > CPLD, for example a simple XC95144XL showed five unknown device in the
> > JTAG chain on automatic JTAG chain initialize. I' has been tried to add
> > the device manually, but there is not accepted as a result, because
> > Impact answers unknown device ID. I'm told each family because tried
> > with xc9536XL, simptoms are same.
> > The cable is OK, I using it to program other devices (for example,
> > XC3S400) on everyday.
> > On software side, tried an older software (Xilinx Foundation 4) to
> > program these devices, that programs all without problems.
> >=20
> >  The question is what is the problem with ISE 8.2.03 ???