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HAlex's avatar
HAlex
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Flash Loader IP not loaded on device 1

Hello I am using EP4CGX150CF23C8N with EPCQ128ASI16N flash as AS a configuration device. When I am trying to program jic file to the flash IC with Intel USB blaster II - I immediately get messa...
NurAiman_M_Intel's avatar
NurAiman_M_Intel
Icon for Super Contributor rankSuper Contributor
3 years ago

Hi,


The Intel® FPGA Download Cable II has a default TCK frequency of 24 MHz. However, it is mentioned in the Userguide that for some, signal integrity and timing prevent operating at 24MHz. Hence we recommend to lower the TCK frequency of the download cable. You may refer to below UG.


https://www.intel.com/content/www/us/en/docs/programmable/683719/current/changing-the-tck-frequency.html#:~:text=The%20Intel%C2%AE%20FPGA%20Download%20Cable%20II%20has,TCK%20frequency%20of%2024%20MHz.


Regards,

Aiman


  • HAlex's avatar
    HAlex
    Icon for Occasional Contributor rankOccasional Contributor
    3 years ago

    Hello

    As I wrote I did performed reduction of the operating frequency to 16Mhz but even with this frequency USB blaster II working much slower than Terasic USB blaster running on 6Mhz. This cause us difficulties using USB blaster II in mass production (and we don't have enough Terasic USB blasters).

    Anyway, I am not sure that the issue is a signal integrity (unless it is inside FPGA). This is because JTAG path running on 24Mhz configuring SOF file without problem.

    And the path between FPGA and flash running on 40Mhz configuring FPGA smoothly.

    Maybe the problem is with SFL IP that can't run on 24Mhz??

    What do you think?

    Thank you

    Alex