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syoma's avatar
syoma
Icon for New Contributor rankNew Contributor
1 year ago
Solved

Cyclone V does not boot from S25FL128 if SOF2FLASH is used

Hi all I need some hint: We are using Cypress/Infineon S25FL128 as configuration flash for Intel Cyclone V FPGA. I use Quartus 17.0 Lite. I created a simple Flash Programmer Project using "Nios® I...
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  • syoma's avatar
    syoma
    1 year ago

    I've actually found the problem.

    The issue was that sof2flash utility could not generate proper srec file. Either the little-endian format was wrong or there were wrong bytes in header area.

    To resolve this issue I used a third party utility https://sourceforge.net/projects/srecord/ to convert .rbf file into .flash

    The command line for this is 

    srec_cat file.rbf -Binary −Bit_Reverse -Output=file.flash

    -Binary option specifies that input file has binary format

    and

    - Bit_Reverse option specifies reversing bits in output file.

    With this command a proper .flash file can be generated, which then can be programmed using nios2-flash-programmer or quartus_pgm into Flash.

tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
1 year ago

Hi


Could you try the override file with the following settings?


[EPCS-012019] # Cypress SPI Flash S25FL128S

sector_size = 65536

sector_count = 128


I see that the logs indicate a the erase sector size is 256 x 64K where as the S25FL128S should be 128 x 64K.


Regards

Jingyang, Teh


  • syoma's avatar
    syoma
    Icon for New Contributor rankNew Contributor
    1 year ago

    Hi Jingyang

    My nios2-flash-override.txt looks as follows:

    [EPCS-016018] # Infineon SPI Flash S25FL128
sector_size = 65536
sector_count = 256

    Sorry if I didn't mentioned before, but I'm using S25FL128L, not S25FL128S. In datasheet for S25FL128L it says it has 256 blocks of 64KB, which perfectly matches 128Mbit total capacity.

    I had to use 016018 as these match with the ID data, provided in the S25FL128L datasheet. As you can see in my first post it works.

    Do you think I still need to change override file to 128 x 64K?