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adamShiau's avatar
adamShiau
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2 years ago
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EPCQ remaining space read and write

Hello everyone, I am using the Cyclone IV model FPGA and utilizing a 16Mb EPCQ to store a .jic file. If there is any remaining space in my EPCQ, I would like to use it for storing some parameter...
Fpga Devkit
adamShiau's avatar
adamShiau
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2 years ago
Hi FvM,
How can I determine how much space the .jic file has occupied in flash? Information like the start address and end address, for example.

Adam. S
FvM's avatar
FvM
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2 years ago
Hi,
Programming File Converter optionally generates a map file with this information.
  • adamShiau's avatar
    adamShiau
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    2 years ago

    Hi FvM,

    In my application, the size of `.jic` file is 2MB.

    I convert the `.sof` and `.elf` files into `.flash` files separately,

    and then further convert them into `hw.hex` and `sw.hex` files.

    Afterward, I combine these two `.hex` files into a `.jic` file.

    Upon completing the conversion, I obtain a `.map` file,

    with content containing information from `hw.hex` and `sw.hex` (as shown below).

    My question is, if this content represents the address information in the EPCQ,

    why is there such a significant difference in file sizes?

    0x3BA05 corresponds to 244,229 Bytes, which is only 238.5KB.

    Adam S