jtag loader for picoblaze

Guest
hi all

we have implemented a picoblaze in vertex 4 kit and we r in the path
of implementing JTAG loader to reconfigure block rom ,which is used to
change the program ROM.
any one have an idea on implementing JTAg loader in VERTEX 4. we tried
but it is giving a error of

" virtex 2 boundary scan failed to match for virtex 4""

please help us to overcome this problem

thanks
umesha
 
umeshmgowda@gmail.com schrieb:

hi all

we have implemented a picoblaze in vertex 4 kit and we r in the path
of implementing JTAG loader to reconfigure block rom ,which is used to
change the program ROM.
any one have an idea on implementing JTAg loader in VERTEX 4. we tried
but it is giving a error of

" virtex 2 boundary scan failed to match for virtex 4""

please help us to overcome this problem

thanks
umesha
Click to expand...
take the original picoblaze jtag loader and just replace the bscan
primitive
then it will work

Antti
 
you need to change the BSCAN primitive...
and remember to use the picoblaze C compiler!
Next Monday you can download the new version 1.8.3 + optimizer!!

good luck,
Francesco

umeshmgowda@gmail.com wrote:
hi all

we have implemented a picoblaze in vertex 4 kit and we r in the path
of implementing JTAG loader to reconfigure block rom ,which is used to
change the program ROM.
any one have an idea on implementing JTAg loader in VERTEX 4. we tried
but it is giving a error of

" virtex 2 boundary scan failed to match for virtex 4""

please help us to overcome this problem

thanks
umesha
Click to expand...
 
you need to change the BSCAN primitive...
and remember to use the picoblaze C compiler!
you can download for free on www.poderico.co.uk
(do not dowanload the version 1.7.7 is too old.... this evening or
tomorrow I'll put the
new version 1.8.3)
This version has an optimizer (reduce 15% of the code)


good luck,
Francesco

umeshmgowda@gmail.com wrote:
hi all

we have implemented a picoblaze in vertex 4 kit and we r in the path
of implementing JTAG loader to reconfigure block rom ,which is used to
change the program ROM.
any one have an idea on implementing JTAg loader in VERTEX 4. we tried
but it is giving a error of

" virtex 2 boundary scan failed to match for virtex 4""

please help us to overcome this problem

thanks
umesha
Click to expand...
 
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