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k_arthur
Visitor II
May 31, 2007
Question

Start up info

  • May 31, 2007
  • 3 replies
  • 749 views
Posted on May 31, 2007 at 17:00

Start up info

    This topic has been closed for replies.

    3 replies

    K
    k_arthurAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:43

    I want to know what's hapenning on start up of mcu? Where to get information about start up sequence? For example where writen about this:

    Reset_Addr DCD Reset_Handler

    Undef_Addr DCD UndefHandler

    SWI_Addr DCD SWIHandler

    PAbt_Addr DCD PAbtHandler

    DAbt_Addr DCD DAbtHandler

    DCD 0 ; Reserved Address

    IRQ_Addr DCD IRQHandler

    FIQ_Addr DCD FIQHandler

    Best regards,

    kesart

    [ This message was edited by: kesart on 16-05-2007 15:23 ]

    J
    jgoril
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:43

    IMHO, defining exception vector in this way is not very useful. It is instruction expected at exception address (branch to exception routine or loading PC with exception routine address)...

    A
    ase
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:43

    Loop in a exception vector location is a quite good method.

    Thus any registers do not change from moment of exception and with help JTAG it is easier to identify a place and the reason of exception occurrence (IMHO :D )

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