[avr-libc-dev] [bug #28921] pointer to function > 128k flash

[Steffen Graap]

URL:
  <http://savannah.nongnu.org/bugs/?28921>

                 Summary: pointer to function > 128k flash
                 Project: AVR C Runtime Library
            Submitted by: steffen_g
            Submitted on: Mi 17 Feb 2010 12:40:21 GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
        Percent Complete: 0%
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                 Release: Unknown
           Fixed Release: None

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Details:

Pointer to function works not correct with flash > 128k.
A pointer to a function is 16 bit. This is not enough in AVR's with more than
128k flash.

this is a part of the listfile (*.lss)

00020440 <vSend_Debug_Data>:
 */

//*****************************************************************************
void vSend_Debug_Data (void)
{
...
...
u8Add_Time_Task (vSend_Debug_Data, TIME_DEBUG_DATA);
   204c0:  80 e0         ldi  r24, 0x00  ; 0
   204c2:  90 e0         ldi  r25, 0x00  ; 0
   204c4:  6a ef         ldi  r22, 0xFA  ; 250
   204c6:  70 e0         ldi  r23, 0x00  ; 0
   204c8:  0e 94 6e ec   call  0x1d8dc  ; 0x1d8dc <u8Add_Time_Task>
}

greetings Steffen Graap




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