[avr-chat] Re: [avr-gcc-list] Constatnts in .data section

[Jörgen Birkler]

See <pgmspace.h> in avr-clib. Maybe not a topic for the avr-gcc list.

 

BTW:

attached time.h compatible lib for the avr. (string functions not ready yet)

 

 

Also rtc.h: Only inlude and call "rtc_init();", enable global interrupts and you have a RTC in your AVR.

 

/Jörgen

----- Original Message -----

From: Alex Kholodenko

To: address@hidden

Sent: Wednesday, June 01, 2005 2:20 PM

Subject: [avr-gcc-list] Constatnts in .data section

Hello,

I have in my code some constants like this one for example:

const static uint16_t mm_days[12]=
{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 };

 

As far as I can see it will be placed in .data section in RAM after init. I would prefer to have it in flash memory and not to spend RAM for it. I can afford speed reduction in access to this area. So how can I force gcc to do it if it is possible.

 

Thanks. Alex.

I'm not a member of the list so please take care to "reply all"

 

---

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clib-time.zip
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rtc.h
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