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Honored ContributorPin Assignment on NIOSII Embedded Evaluation Kit with CyclonIII(EP3C25F324)
I did a "Getting Started Design" on NIOSII Embedded Evaluation Kit with CyclonIII(EP3C25F324).
I assigned in .qsf-File : set_location_assignment PIN_E2 -to top_flash_cs_n After Fitting I get this Error: Error (176310): Can't place multiple pins assigned to pin location Pin_E2 (IOPAD_X0_Y25_N0) Info (176311): Pin top_flash_cs_n is assigned to pin location Pin_E2 (IOPAD_X0_Y25_N0) Info (176311): Pin ~ALTERA_FLASH_nCE_nCSO~ is assigned to pin location Pin_E2 (IOPAD_X0_Y25_N0) When I remove Assignment in .qsf-File(set_location_assignment PIN_E2 -to top_flash_cs_n) I get this Warning: Critical Warning (169085): No exact pin location assignment(s) for 6 pins of 121 total pins Info (169086): Pin top_flash_cs_n not assigned to an exact location on the device How can I assign this Pin??:( Assignment is nessesarry for VHDL-Design on Eval-Board ! Thank you in advance Gerhard3 Replies
Altera_ForumHi Gerhard,
--- Quote Start --- I assigned in .qsf-File : set_location_assignment PIN_E2 -to top_flash_cs_n After Fitting I get this Error: Error (176310): Can't place multiple pins assigned to pin location Pin_E2 (IOPAD_X0_Y25_N0) Info (176311): Pin top_flash_cs_n is assigned to pin location Pin_E2 (IOPAD_X0_Y25_N0) Info (176311): Pin ~ALTERA_FLASH_nCE_nCSO~ is assigned to pin location Pin_E2 (IOPAD_X0_Y25_N0) --- Quote End --- Altera FPGAs have some dual-purpose pins. In this case, the pin the evaluation kit uses has defaulted to its 'other' purpose. To enable the pin for use as user I/O (after the FPGA has configured), you need to select: Assignments -> Device, Device and Pin Options, Dual Purpose Pins And then look at the FLASH_nCE/nCSO setting. In the project I just opened for another board, it defaults to "As Input Tri-Stated". Click on that setting and change it to "Use as regular I/O". Now your assignment will work. Cheers, Dave- Altera_Forum
With your instructions, my assignments is now working.
Thank for your help. - Altera_Forum--- Quote Start --- With your instructions, my assignments is now working. --- Quote End --- Great! Cheers, Dave
