I recommend never using the "packed" attribute. It rarely helps (and
Thanks, I will consider it. In general, I know this, I'm just
experimenting :)
PROGMEM tells the compiler to put the data (bw_tab here) in flash
memory. On the AVR, flash is accessed with different instructions from
ram (and IO registers). So if you have told the compiler to put the
data in flash, you have to tell it to read the data from flash:
Newer gcc versions also support the "__flash" address space. This lets
Thank :)
I have an understanding of the features of addressing memory in the AVR
family and access to them, but thanks anyway for an explanation - I was
not mistaken :) I was wondering if the compiler for AVR microcontrollers
can address the elements in the program memory without a significant
change in the code semantics . Thanks to your explanation about the
__flash modifier, I saw that yes, it could. It really works.
Thank you very much for your attention and time spent, have a nice day!
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