Forum Discussion

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

Can I use epcs16 as external flash memory?

Hi,

I am using epcs16 with EP3C FPGA and i want an external flash memory to read and write data on it. So, can i use epcs as external flash memory ?

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor

    In principle yes.

    You need to be carefule about which areas of the chip are used by what - and semember that it has a serial interface and a large erase page.

    The HAL library access functions are also probably not the ones you are looking for!

    I think a nios could directly bit-bang the serial interface faster than it can use the spi hardware block.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor

    --- Quote Start ---

    In principle yes.

    You need to be carefule about which areas of the chip are used by what - and semember that it has a serial interface and a large erase page.

    The HAL library access functions are also probably not the ones you are looking for!

    I think a nios could directly bit-bang the serial interface faster than it can use the spi hardware block.

    --- Quote End ---

    Thanks for your reply.

    If you can help me, How can i check the area used ? and how can i use NIOS or any other method to access the epces with my design on FPGA ?