Forum Discussion

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

DE2_115 SD_Card Audio Player

Hi all,

I want to modify the DE2_115 SD_Card Audio Player demo project for my own project and add the audio recording function to it. Basically it is like combining the Audio Player demo and the DE2_115_Audio demo projects together.

I tried opening the SD_Card Audio Player project using Quartus 2 but I see only a Verilog file in the project. Where can I find the Block/Schematic file?

And how can I use the available C source code in a new NIOS 2 project? Can someone give me the step by step procedure?

Thanks

4 Replies

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

    I have tried compiling the DE2_115_SD_Card_Audio_Player project in Quartus 2. Then clicked on File -> Create/Update -> Create Symbol Files for Current File. It said Symbol file created successfully but I can't find it in the project directory.

    After compilation, it shows DE2_115_SOPC:DE2_115_SOPC_inst under the main project in the Project Navigator. Double clicking on it opens the SOPC builder for the project. I tried generating this system again in the SOPC builder but it gives the following errors:

    Warning: Entity "altpll" obtained from "altpll.v" instead of from Quartus II megafunction library

    Error: Node "c0" is missing source File: C:/Users/.../AppData/Local/Temp/alt5789_2303333993077008292.dir/0027_sopcqmap/altpll.v Line: 243

    Error: Node "c1" is missing source File: C:/Users/.../AppData/Local/Temp/alt5789_2303333993077008292.dir/0027_sopcqmap/altpll.v Line: 244

    Error: Node "c2" is missing source File: C:/Users/.../AppData/Local/Temp/alt5789_2303333993077008292.dir/0027_sopcqmap/altpll.v Line: 245

    Error: Node "c3" is missing source File: C:/Users/.../AppData/Local/Temp/alt5789_2303333993077008292.dir/0027_sopcqmap/altpll.v Line: 246

    Error: Node "locked" is missing source File: C:/Users/.../AppData/Local/Temp/alt5789_2303333993077008292.dir/0027_sopcqmap/altpll.v Line: 248

    Error: Node "readdata[0]" is missing source File: C:/Users/.../AppData/Local/Temp/alt5789_2303333993077008292.dir/0027_sopcqmap/altpll.v Line: 251

    Error: Node "readdata[1]" is missing source File: C:/Users/.../AppData/Local/Temp/alt5789_2303333993077008292.dir/0027_sopcqmap/altpll.v Line: 251

    Warning: Quartus II 32-bit Analysis & Synthesis was unsuccessful. 7 errors, 2 warnings

    Error: Peak virtual memory: 313 megabytes

    Error: Processing ended: Mon Mar 25 14:45:39 2013

    Error: Elapsed time: 00:00:01

    Error: Total CPU time (on all processors): 00:00:01

    I just want to be able to modify the main.c file in NIOS 2 - Eclipse and use it for my own project.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    Another query, as soon as I download the sof file from Quartus 2, the program starts running and it plays the audio files from the SD card. Shouldn't it wait for me to download the NIOS 2 code before running it?

    I mean, in Quartus we simply create the system, with all the components and peripherals and a NIOS 2 soft processor. And then we use the Eclipse to download a source code for the NIOS 2 soft processor in the FPGA. But what I see in this project is somewhat different. It seems like the source code for NIOS 2 is also included in the Quartus 2 itself. Is it so? If yes, then where can I find that code?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    In the NIOS II - Eclipse, I create a new project by selecting file -> new -> nios ii application and bsp from template. Then I select the existing DE2_115_SOPC.sopcinfo file to create a blank project.

    Then I import the existing source file by clicking on file -> import -> general -> file system and select the \software\de2_115_sd_card_audio_player directory.

    Now when I build the BSP and the project, and try to run this file on the NIOS II hardware by right clicking on the project and selecting run as, I see only one option there: 1 local c/c++ application. There's no option for running this program as nios ii hardware.

    Where am I going wrong?