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AR# 10729

*Obsolete* Bitstream16


Keywords: PROM File Formatter, 3.1i, error, bitstream, Virtex

Urgency: Standard

General Description:
This error occurs when I try to chain two bit files together to fit in to one PROM:

"Error: bitstream16: Cannot chain Virtex bitfiles disable length count"


It is not possible to target a Spartan and a Virtex from a single PROM. Only the Spartan-XL and the 4000X families can be targeted, as these allow for length
count disabling. The 4000E and Spartan devices do not allow for this in the architecture; therefore, the procedure will not work.
AR# 10729
Date Created 08/29/2007
Last Updated 09/26/2005
Status Archive