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Altera_Forum
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14 years ago

What size is 64K x 16 SRAM ?

dear all,

am using this 64k x 16 Cypress SRAM in my qsys design and able to use my nios code in it. I presume the size of this ram is 1 Mbit ie 128 Kbyte but am able to use only 64 Kbyte of the memory. I am using the IDR71V416 memory available in QSYS lib and changed it to 16 bit address and 16 bit data lines. I observe that its allocating 2^16 address locations with 16 bit data bus but my NIOS code during build shows as if only 64 Kbyte of memory is available. Please help asap. :confused:

12 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    Dear Cris72, i used the Flash Programmer in IDE... am sorry, i went that way cos i have not used the console till now... thats why.

  • Altera_Forum's avatar
    Altera_Forum
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    Hi...!!! i got it.. i made a silly mistake.. i forgot to point the reset vector of CPU to EPCS. Its working fine now. The SRAM version is slightly slower compared to the Onchip version. Thanks for the support, its been really helpful..!!