Spartan 3 configuration

Hello,

Few days back, I got a good help from this forum about CPLD programming.
I have succeded in making my own design based on a microcontroller to
configure a spartan 2 as well as to program XC95108 CPLD.

Now I am moving to Spartan 3 and struggling with it. A very good document
from Xilinx about Spartan 2 configuration is XAPP188 (Specifically table 7
on page 11) which lists steps to be taken while configuring Spartan 2.

I did not find such clear information about Spartan 3. Does anyone know
more details about the steps for spartan 3?

I have already referred to their Spartan 3 configuration guide UG332 but it
is slightly confusing.

I also tried the way XC3Sprog is implemented but it did not work.

Please let me know if you know anything about it.

I can share information about spartan2 and xc95...

Thanks and regards,	   
					
---------------------------------------		
Posted through http://www.FPGARelated.com

I got it.

Spartan 3 needs a Jprogram instruction before config_in instruction.
Spartan 3 has a 6 bit IR Vs 5 bit IR of Spartan 2.

Rest of the things are almost similar or same.

Thanks..


>Hello,
>
>Few days back, I got a good help from this forum about CPLD programming.
>I have succeded in making my own design based on a microcontroller to
>configure a spartan 2 as well as to program XC95108 CPLD.
>
>Now I am moving to Spartan 3 and struggling with it. A very good document
>from Xilinx about Spartan 2 configuration is XAPP188 (Specifically table
7
>on page 11) which lists steps to be taken while configuring Spartan 2.
>
>I did not find such clear information about Spartan 3. Does anyone know
>more details about the steps for spartan 3?
>
>I have already referred to their Spartan 3 configuration guide UG332 but
it
>is slightly confusing.
>
>I also tried the way XC3Sprog is implemented but it did not work.
>
>Please let me know if you know anything about it.
>
>I can share information about spartan2 and xc95...
>
>Thanks and regards,	   
>					
>---------------------------------------		
>Posted through http://www.FPGARelated.com
>	   
					
---------------------------------------		
Posted through http://www.FPGARelated.com