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Altera_Forum's avatar
Altera_Forum
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16 years ago

question about sdram on nios II

After I finished my project and built it ,there is no any error or warning.But when I run my C project,it said :

"Using cable "ByteBlasterII [LPT1]", device 1, instance 0x00

Processor is already paused

Reading System ID at address 0x00000010: verified

Initializing CPU cache (if present)

OK

Downloading 02000000 ( 0%)

Downloaded 8KB in 0.2s (40.0KB/s)

Verifying 02000000 ( 0%)

Verify failed between address 0x2000000 and 0x2001EEB

Leaving target processor paused."

I use sdram as my only storage.Is it my project so large?I hope somebody help me to solve this problem.Thanks!!

24 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    have you checked the phase settings of your sdram clock ?

    there are plenty of threads on the nios forum about the sdram and nios II, what you could check.

    quartus will never give you a warning if your phase settings are not correct for your design. only if it can't archieve your timing settings ...
  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    Did you ckeck in System libraries properties that the program memory, your read_only data memory and your read_write memory were on sdram?

  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    what are the components are needed to create nios ii processor and one thing is i want to access sdram please help me i search this for last one month

    thank you
  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    i need to access nios ii processor ,what are the components are required to create processor and i want to use sdram and blockram please tell me the flow or any documentation is available please tell me

    thank you
  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    Asking the same question 3 times won't get you more answers, especially with such a vague question.

    There is a SDRAM controller available in SOPC builder. What SDRAM chip do you have?
  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    --- Quote Start ---

    Asking the same question 3 times won't get you more answers, especially with such a vague question.

    There is a SDRAM controller available in SOPC builder. What SDRAM chip do you have?

    --- Quote End ---

    I know to access nios ii with on chip memory.now instead of onchip mem i need to access dynamic ram and static ram with processor could you please tell me any documentation is available
  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    I have some of the pixels of image.and i want to store that datas into sdram .and retrive that datas through sdram for further process.is it possible please help me.

  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    Have a look at the design examples for your kit. The standard nios example already has a Nios II CPU and a SDRAM controller configured for the chip on the board.