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I’m working on a VHDL project which is a small SDRAM test. I have these entities:

  • top
  • sdramwrapper
  • sdram <– generated IP core sdrampkg <– contains a package containing constants used several places and a couple of type's to bundle signals

ISE usually organizes the implementation files in a tree and automatically determines the required compilation order. However, in this project it refuses to include the sdram_pkg package when building and thus I have to use manual compliation order. In itself it is silly but works. When I try to simulate the project it refuses to include the sdram_pkg package at all, even if I’ve specified the compilation order.

I'd like to know both how (figure out how) to solve this problem, but also know the rules ISE uses.

Update: By marking the sdram_pkg.vhd file as "global source" it was included and I can use the automatic compliation order.

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  • \$\begingroup\$ Which version are you using? \$\endgroup\$ – Brian Carlton Apr 17 '11 at 18:23
  • \$\begingroup\$ 12.4, 64bit Linux \$\endgroup\$ – Trygve Laugstøl Apr 17 '11 at 18:41
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It sounds like you figured out your problem, but you can indeed set a custom compilation order in ISE. For example, see this link: Setting a Custom Compilation Order (part of ISE help).

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