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Altera_Forum's avatar
Altera_Forum
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15 years ago

Pin flash_nCE, nCE0 as I/O

Hi together,

I use a EP3C16F484-FPGA. On this type pin E2 is configured as "flash_nCE, nCE0" per default. Is ist possible to use this pin as norml I/O pin?

If yes, how and where do I have to configure this pin?

It would be very nice to get helpful answers.

Regards,

Steffen

4 Replies

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

    Hi,

    Under Assignments/Device/Device and Pin Options/Dual Purpose Pins

    you can configure your Dual Purpose Pins.

    But if you are using Quartus 10.0, there is an error in the GUI.

    In this case, you have to configure the Dual Purpose Pins by yourself in the

    Quartus Setting File.

    e.g. "Project_Name.qsf".

    Open this File and correct the global assignments for the following Dual Purpose Pins.

    set_global_assignment -name CYCLONEII_RESERVE_NCEO_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_DATA0_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_DATA1_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_FLASH_NCE_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_DCLK_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_DATA7_THROUGH_DATA2_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_OTHER_AP_PINS_AFTER_CONFIGURATION "USE AS REGULAR IO"
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Thanks to all of you for these fast and helpful responses!

    I still use Quartus 9.1 SP2 so I have not the Problem with this bug.

    Have a nice day

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

    --- Quote Start ---

    Hi,

    Under Assignments/Device/Device and Pin Options/Dual Purpose Pins

    you can configure your Dual Purpose Pins.

    But if you are using Quartus 10.0, there is an error in the GUI.

    In this case, you have to configure the Dual Purpose Pins by yourself in the

    Quartus Setting File.

    e.g. "Project_Name.qsf".

    Open this File and correct the global assignments for the following Dual Purpose Pins.

    set_global_assignment -name CYCLONEII_RESERVE_NCEO_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_DATA0_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_DATA1_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_FLASH_NCE_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_DCLK_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_DATA7_THROUGH_DATA2_AFTER_CONFIGURATION "USE AS REGULAR IO"

    set_global_assignment -name RESERVE_OTHER_AP_PINS_AFTER_CONFIGURATION "USE AS REGULAR IO"

    --- Quote End ---

    i just want to thank nicolas, your solution solved my problem, i use 10.0......

    thanks very much