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J
jm
Visitor II
March 11, 2004
Question

External Memory

  • March 11, 2004
  • 4 replies
  • 801 views
Posted on March 11, 2004 at 06:29

External Memory

    This topic has been closed for replies.

    4 replies

    J
    jmAuthor
    Visitor II
    March 2, 2004
    Posted on March 02, 2004 at 08:46

    Hi,

    I work on ST10F168 and i use external ram by EBC in 16 bits demux mode.

    There are 4 Chip Select available for ram : CS1,CS2,CS3,CS4

    and 23 adress bits : A1->A23

    So, there are (2^23 * 4) bytes accessible <=> 32Mo

    I would to know if i am right and if i can declare an external memory map of 32 Mo !

    Thanks for any suggestions !

    Regards,

    Jim
    C
    charles239955_st
    Visitor II
    March 2, 2004
    Posted on March 02, 2004 at 10:23

    Hello Jim,

    Unfortunatly the ST10 address range is limited to 16Mo (internal Flash included) because we only use 24 bit to create the total absolute address.

    Bye
    J
    jmAuthor
    Visitor II
    March 8, 2004
    Posted on March 08, 2004 at 09:35

    Ok but 16*8bits or 16M*16bits ?

    C
    charles239955_st
    Visitor II
    March 11, 2004
    Posted on March 11, 2004 at 06:29

    16M*8bits

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