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Altera_Forum's avatar
Altera_Forum
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20 years ago

Does anyone here has you UP3 wrok well?

My development board is UP3 from sls corp.

If I just use the sdram or the sram or the flash, it works very well without any problem.

But if i use them together, that means, a tri_state_bridge is necessary, and I must add a mux to organize the I/O signal, ps: these memory decevices use shared pins. Then the problem comes, i can't run any programme on the board any more.

Does anyone come cross the same problem?

And there is another question: the sdram pins is shared by other device, but the sdram controller use slave port but tri_state slave port, even if you set the controller with "shared dqm/dq/ I/o pins", can it works well?

Thank you!

4 Replies

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

    Hi:

    the kit work well , you can down the files "sls_sram_16_bit" and "sls_tristate_16x2_character_lcd" from the website of sls corp . I use them and the kit work well
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Which version did you download?

    I have downloaded the "Accessing Memory" design for quartus 4.1 and if I don't modify it but directly download it to the fpga, it will work well. But if I modify a little, everything will changed:( PS: I am using Quartus 4.2.

    Then I downloaded the "Accessing Memory" design for quartus 5.0 , and it still doesn't work anyway.

    Do you just use the reference design or construct the system by yourself using the sls component( lcd & sram)? And what your quartus version is?

    Thank you so much!!
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    I use the QII5.0 and sopcbuilder 5.0 ,I use them to design myself project and it works well, So is that. Good luck for you