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Hi!
Actually, yes. I can tell you that I’ve read many posts, just because of their author. Some people just have something interesting to say, no matter what the title is.
Wednesday, 20 October 2010 - 14:14
Change value of variables in program space
Theoretically you can reprogram FLASH variable value, but it is not so simple. First of all, the AVR you use mus support bootloader. In bootloader section you can store a new...
Thursday, 7 October 2010 - 07:07
How to move heap start after user defined memory segment.
Thanks Jörg. You are right; it is not a rocket science  I was just lazy because with WinAVR I’ve got all the tools ready to use. Yesterday I checked once again the newest...
Thursday, 7 October 2010 - 07:02
How to move heap start after user defined memory segment.
As I already did. Sorry, I misunderstood Jörg’s post.
Wednesday, 6 October 2010 - 17:09
How to move heap start after user defined memory segment.
Thanks Jörg for response. I wonder if I can do it simpler. I cannot modify __malloc_heap_start variable, as my segment is on the beginning of external RAM, and I want to move the...
Wednesday, 6 October 2010 - 15:01
How to move heap start after user defined memory segment.
Thanks Stu, I’ve already solved the problem by modifying linker script: .noinit : { PROVIDE (__noinit_start = .) ; *(.noinit*) PROVIDE (__noinit_end...
Monday, 4 October 2010 - 19:59
What for linker read-only memory section exists?
I’ve read this documentation many times, but somehow don’t realize what for attributes exist. Thanks. So it seems that attributes are rather useless. I wonder if additional...
Monday, 4 October 2010 - 06:49
What for linker read-only memory section exists?
If it does not analyze the code, so what for attributes read, write, executable are? Which tool uses it?
Sunday, 3 October 2010 - 21:39
What for linker read-only memory section exists?
Ok, but what R attribute in memory map really do? I thought that linker will check if something tries to write to read-only region and generates an error. But it seems that...
Sunday, 3 October 2010 - 21:01
Another serious reordering problem, misoptimization and gcc
Ok., but still 16-bit pointer must be reloaded, so At least we loose 2 words/2 cycles. Of course not in every situation but in general it should give us some memory and time...
Sunday, 3 October 2010 - 12:13
Another serious reordering problem, misoptimization and gcc
Thanks Clawson for clarifying things. So we have 12 cycles/10words vs. 10cycles/10words. Seems to be very comparable, but… compiler version destroys content of two additional...
Sunday, 3 October 2010 - 08:33
Another serious reordering problem, misoptimization and gcc
According to AVR instruction set: LDS Rd,k 16 ≤ d ≤ 31, 0 ≤ k ≤ 127 Words: 1 (2 bytes) Cycles: 1 The same STS. Probably you consider LDS/STS with 16-bit address, which...
Saturday, 2 October 2010 - 13:34

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