Description
Due to a known issue in Quartus® Prime software version 15.1, an uncompressed rbf is always generated during compilation for Arria® 10 devices irrespective of the Generate compressed bitstreams option setting.
Resolution
Use the Covert Programming File utility with the compression option to generate a compressed rbf.
- Select Convert Programming File under File menu
- Choose Raw Binary File (.rbf) Programming from drop-down list of File type
- In the File name field, browse to the target directory and specify an output file name
- Click Add File, then select the .sof file that you want to convert to a .rbf file
- Highlight .sof shown in Input files to convert area, then click Properties
- Enable Compression on SOF File Properties, then click OK
- Click Generate
This issue is scheduled to be fixed in a future version of the Quartus® Prime software.