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per3
per3
Associate III
December 20, 2007
Question

interupt latency

  • December 20, 2007
  • 2 replies
  • 691 views
Posted on December 20, 2007 at 10:18

interupt latency

    This topic has been closed for replies.

    2 replies

    per3
    per3Author
    Associate III
    May 17, 2011
    Posted on May 17, 2011 at 12:20

    What is the interupt latency för the stm103X?

    Specifacally the interupt latency for a level shift on one of the GPIO pins.

    I suppose it depends on clock speed.

    16-32micros
    16-32micros
    Associate III
    May 17, 2011
    Posted on May 17, 2011 at 12:20

    Hi espresso_solo,

    as GPIO pins are mapped on the fast APB bus at the same frequency as the CPU the interrupt latency is only the path from APB to the CPU then the entry to IRQ routine as detailed by the Cortex-M3 Technical Reference Manual on www.arm.com .

    Regards, STOne-32

    [ This message was edited by: STOne-32 on 20-12-2007 14:48 ]

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