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SOkte1's avatar
SOkte1
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7 years ago

System with 3 Flash Devices

In the board that we are developing, there are 3 Flash devices that are all MT25QU01G.

They have different purposes.

  • Configuration Flash
  • Nios II Boot Flash
  • Logging Flash (Nonvolatile Data Storage)

Could you help me with Nios II connections, in the Platform Designer.

3 Replies

  • Looking at your system, all of QSPI controllers are well connected.Not really sure what your question is.
  • SOkte1's avatar
    SOkte1
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    I am curious about CPU instruction master and data master connections to SPI avl_csr and avl_mem connections.

    For logging Flash , I have not connected the Instruction Master since it is just a memory space for CPU.

    For config Flash, I have connected both Instruction and Data Master.

    For boot Flash, I have connected both Instruction and Data Master.

  • Yes, it's not needed to connect with inst master if you are not using it to run application code.