Re: [PIC] Learning C

On Tue, November 19, 2024 1:02 pm, Isaac Marino Bavaresco wrote:

>
> I'm not sure if in this aspect the PIC24Hs are the same as the dsPICs,
> but the dsPICs have stack overflow checking implemented in hardware
> (there is a stack limit register).
>
> If I remember it correctly, dsPICs and PIC24Hs are one of the rare
> architectures that the stack grows upwards (towards larger addresses).
>

I may have not remembered which projects I did that on. It may have been
the PIC32 instead of the PIC24H (which is a project I started 15 years ago
and am still maintaining). If the PIC24H stack grows up, then it was
probably the PIC32 I did this with. As I recall, the heap grows up, and
the stack grows down. I just wanted to avoid a collison.


> If you take the address of a variable, that will force the compiler to
> allocate it in memory.
>

Good point!

Harold
https://w6iwi.org


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