Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

DE1 simple question

can you write one byte from the fpga (DE1 board) to flash (on board) and if so, what is the configuration?

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    I don't know why you wanna use flash for that operation? You can use SRAM or SDRAM.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    I would like to have fixed memory i can get (this is for using signals from keyboard to vga).

    is it possible to write one from the fpga to flash on board (DE1)?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    It's basically possible. However, you can only write to an erased memory location, erasure has to be done in sectors. "Write" (programming) operation as well as sector erase requires a multi-cycle sequence, consult the flash datasheet for details. DE1 has also demonstration projects, that are utilizing the flash. Unfortunately they are "illegible" uncommented Verilog code, as commonly known with Terasic Dev Kits.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    thanks,

    i know about this option and will check it again.

    by the way how can i select a sector? i have only data and address?