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Altera_Forum's avatar
Altera_Forum
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20 years ago

the problem about multi-core CPU

1 Have you used the multi-core CPU in the PFGA ? when i used the multi-

core CPU ,i had some problem about it . i had used the mailbox for the my

multi-core CPU design. i found the mailbox is equality to the two mutexs,

and then , when i one CPU read the address and the other CPU write the

same address at the same time . Whether or not can the mailbox protect

the address and harmonize the two CPU to run right . if the mailbox can

not protect the address , and then how to protect the address by the

software ?

2 when use the multi-core CPU, how to programme the bootloader for the

multi-core CPU? In the sopc builder , the each CPU have the respective

software system for itself. the each CPU reset from the 0X00 address,

however, the shared flash has one OX00 address . and then, how to i will

plan flash for the multi-core CPU ?

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  • Altera_Forum's avatar
    Altera_Forum
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    20 years ago

    hi, Paolo. thank you for your help!

    i do it according to you said, but, i can not always open in the quartusii's tools/sopc builder. i do not know why. i want to look the ERIKA Enterprise's niosii structure, i do not know the ERIKA Enterprise how to use the mutex in its design. do you send your project to me by the winrar or winzip tool? my email is wwsstt2001_163.com. thank you very much!
  • Altera_Forum's avatar
    Altera_Forum
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    20 years ago

    Hi Lucky,

    I just sent you the uncompressed design resulted from the .QAR file on your private e-mail.

    In any case, the details on how to create the hardware can be found on the ERIKA Enterprise Reference Manual available on the web at the erika enterprise literature page (http://www.evidence.eu.com/nios2/literature.asp).

    bye

    Paolo
  • Altera_Forum's avatar
    Altera_Forum
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    20 years ago

    hi, Paolo

    i have downloaded the files you send to me. thank you very much.

    but, the question always exist. i will experiment the sopc bulider according to the files to construct the nisoii with mutux.

    if i have some question, i wish i can discuss with you together.

    thank you!

    lucky

    bye
  • Altera_Forum's avatar
    Altera_Forum
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    20 years ago

    --- Quote Start ---

    originally posted by lucky@Nov 15 2005, 06:34 AM

    i have downloaded the files you send to me. thank you very much.

    but, the question always exist. i will experiment the sopc bulider according to the files to construct the nisoii with mutux.

    if i have some question, i wish i can discuss with you together.

    thank you!

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=10975)

    --- quote end ---

    --- Quote End ---

    That&#39;s fine!... just post again the problem you have...

    Paolo