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AT91F_LowLevelInit() in RealView startup file

Christian E

Dear all,

I use a startup file that includes the AT91F_LowLevelInit() call. AT91F_LowLevelInit() is a c function and is called as followed:

;------------------------------------------------------------------------------
;- Low level Init (APMC, AIC, EBI, ....) by C function AT91F_LowLevelInit
;------------------------------------------------------------------------------
            IMPORT   AT91F_LowLevelInit
;- minimum  C initialization

            ldr     r0,=Top_Stack    ; temporary stack in internal Ram
            ldr     r13,[r0]
            ldr     r0,=AT91F_LowLevelInit
            mov     lr, pc
            bx      r0

Now I want to use the "normal" RealView Startup file but I don't know how and where to modify this file to call my AT91F_LowLevelInit - function.

Does anybody knows, what to do?

Big thanks,

Christian

  • 0

    I don't know your chip, but this should not be too hard: I would say that anywhere after PLL is stabilized (of maybe even before that) and '__main' is called would be fine - you even have your temporary stack for the call. please make sure, though, that your 'AT91F_LowLevelInit' does not use the heap (it is not initialized yet!). just pasting your code in a standard startup file (in the proper location) should do.