array problem 18F45K20

[saschech@gmx.de]

Hello

If the array greater as programm_01[120] I have a compiler error.
I show I have enough ram where is the problem? I must use programm_01[250]

the problem is also with boostc v7.10
(no problem with microc......)
Regards wolfgang

[JonnyW]

Hi Wolfgang. I don't see the error from your screenshot?

Either way, the array is of 16-bit integers, which gives an array of 240 bytes. It should be that the PIC chips support up to 256 bytes per-array, but it may be that on these chips some overhead is required or just that there is a subtle bug in the BoostC compiler.

If you can post your program and the compiler output showing an error that would be good, but I think this is something we can't do much about if it is a BoostC issue. It may be related to the post below.
http://www.matrixmultimedia.com/mmforum ... 46&t=11402

Cheers,

Jonny

[saschech@gmx.de]

Hi Jonny

programm_01[120] give warning compile ok.

programm_01[140] give the same warning with compile error.

Hope you can help

Regards Wolfgang

[saschech@gmx.de]

Hello Benj

""but I think this is something we can't do much about if it is a BoostC issue. It may be related to the post below""

To day I test with boost-c IDE and found in the help file:

Arrays
Arrays can have any number of dimensions. The only constraint is that an array
must fit into a single RAM bank.

Think so it is not a issue..........

Regards Wolfgang

[JonnyW]

Hi. Yes - trying to allocate 140 16-bit elements gives a 280 byte array, which is not possible on 8-bit PICs.

This does not look like a bug, it is a limitation of the HW.

Cheers,

Jonny