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Ixiasoft
Visible to Intel only — GUID: upd1613578224746
Ixiasoft
6.4.5.5. Package Migration
Scenario 1
Your PCB is designed for multiple migratable devices, but you have only one device with which to go to production.
Assume two migratable packages, device A and device B, and that you want to go to production with device A. Follow these steps:
- Perform package deskew for device A.
- Compile your design for device A, with the Package Skew option enabled.
- Note the skews in the <core_name>.pin file for device A. Deskew these package skews with board trace lengths as described in the preceding examples.
- Recompile your design for device A.
- For device B, open the parameter editor and deselect the Package Deskew option.
- Calculate board skew parameters, only taking into account the board traces for device B, and enter that value into the parameter editor for device B.
- Regenerate the IP and recompile the design for device B.
- Verify that timing requirements are met for both device A and device B.
Scenario 2
Your PCB is designed for multiple migratable devices, and you want to go to production with all of them.
Assume you have device A and device B, and plan to use both devices in production. Follow these steps:
- Do not perform any package deskew compensation for either device.
- Compile a Quartus Prime design for device A with the Package Deskew option disabled, and ensure that all board skews are entered accurately.
- Verify that the Report DDR timing report meets your timing requirements.
- Compile a Quartus Prime design for device B with the Package Deskew option disabled, and ensure that all board skews are entered accurately.
- Verify that the Report DDR timing report meets your timing requirements.
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