Hi Rob,
On 2019/01/28 22:58, Rob Jansen wrote:
I need a large array for one of my applications and ran into the large
array library which does exactly what I need. I am using a PIC16F1976
and I constantly ran out of data memory, even when defining an array
of 200 bytes.
I had a look at the source code and I expect that this is caused by
the fact that you define smaller arrays of 256 bytes but the
PIC16F1976 does not have banks of that size but banks of at most 80 bytes.
Should I make a new large array library or should I try to adapt the
current libraries so that they also work for chips that have banks of
80 bytes, so arrays of 64 bytes would be the easiest to work with.
If I add it to the existing libraries there are various options:
1) I check for the core type and make a separate part for those types
of cores using arrays of 64 bytes.
2) Rewrite the library so that it is based on arrays of 64 bytes
instead of 256 bytes and add more arrays to make it fit the original size.
Any suggestions?
I cannot find the 16F1976, I assume you mean the 16f19176.
Just an idea ... A third option could be to use data memory in 'linear'
mode, a special feature of the 14H core. This possibility has been
subject of discussion here long ago. As far as I remember it was at that
time seen as required new feature of the compiler. When implemented in a
library I can imagine there may be a conflict with memory management by
the compiler, because linear memory is simply an 'overlay' of banked
memory.
Regards, Rob.
--
*Rob H*amerling, Vianen, NL
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