> Would seem IAR automatically buries a __checksum in the code
> image but avr-gcc does not.
The equivalent in avr-gcc is __data_log_end[1], see the code I just posted.
The one possible difference is that __checksum is purely the code,
.text in avr-gcc, where __data_log_end[1] is .text+.data.
_
> I have been successfully porting the old code from IAR to AVR GCC except for
> the followings:
> extern flash unsigned short __checksum;
If your 'checksum' is the last thing after your program,
the equivalent in avr-gcc is __data_log_end[1].
You appear to be trying to do the same as this code:
On Thu, May 29, 2008 at 11:25:01AM -0600, Blake Leverett wrote:
> On Thursday 29 May 2008, trile58 wrote:
> >
> > I had flash changed to PROGMEM as instructed in the porting document.
> > However, I got an error "undefined reference to __checksum" .
> It looks like the problem is the "flash" keywo
On Thursday 29 May 2008, trile58 wrote:
> I have been successfully porting the old code from IAR to AVR GCC except
> for the followings:
>
> extern flash unsigned short __checksum;
>CRC_SUM = 0; /* Clear CRC-Check of Program Memory (Flash)
> */
>/* Checksum of Program memory (
On Thu, May 29, 2008 at 09:48:08AM -0700, trile58 wrote:
>
> I have been successfully porting the old code from IAR to AVR GCC except for
> the followings:
>
> extern flash unsigned short __checksum;
>CRC_SUM = 0; /* Clear CRC-Check of Program Memory (Flash)
>
> */
I have been successfully porting the old code from IAR to AVR GCC except for
the followings:
extern flash unsigned short __checksum;
CRC_SUM = 0; /* Clear CRC-Check of Program Memory (Flash)
*/
/* Checksum of Program memory (IAR-Example) */
CRC_
