I am using quartus prime pro 23.4 to develop an arria 10 board.
now i need to generate the rbf file for PS mode configuration.
i generated the rbf with below 2 approaches base on the same sof file.
1. run command on tcl shell:
quartus_cpf -c -o Bitstream_compression=on ./phoenix_FPGA_top_safety_image.sof ./phoenix_FPGA_top_safety_image_compression_on.rbf
then generate a.rbf.
2. using the covert programming files in GUI with below cof configuration, then gegerate b.rbf.
<?xml version="1.0" encoding="US-ASCII" standalone="yes"?>
<cof>
<eprom_name>MT25QU01G</eprom_name>
<output_filename>C:/myproject/corona/tcltest/phoenix_FPGA_top_safety_image.rbf</output_filename>
<n_pages>1</n_pages>
<width>1</width>
<mode>0</mode>
<sof_data>
<user_name>Page_0</user_name>
<page_flags>1</page_flags>
<bit0>
<sof_filename>C:/myproject/corona/tcltest/phoenix_FPGA_top_safety_image.sof<compress_bitstream>1</compress_bitstream></sof_filename>
</bit0>
</sof_data>
<version>10</version>
<create_cvp_file>0</create_cvp_file>
<create_hps_iocsr>0</create_hps_iocsr>
<auto_create_rpd>1</auto_create_rpd>
<rpd_little_endian>0</rpd_little_endian>
<options>
<map_file>0</map_file>
</options>
<advanced_options>
<ignore_epcs_id_check>1</ignore_epcs_id_check>
<ignore_condone_check>2</ignore_condone_check>
<plc_adjustment>0</plc_adjustment>
<post_chain_bitstream_pad_bytes>-1</post_chain_bitstream_pad_bytes>
<post_device_bitstream_pad_bytes>-1</post_device_bitstream_pad_bytes>
<bitslice_pre_padding>1</bitslice_pre_padding>
</advanced_options>
</cof>
3. when i compare the a.rbf and b.rbf, i found 3 bytes are different between them. as below figure shows.
My question:
why they are different? which one is right? or these bytes not impact the configuration?
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