AVR-Chat

On 28/11/2010 22:30, Jim Wagner wrote:

> A question -
>
> Are the various ARM implementations consistent? That is, not only the
> core PC/ALU/memory but how ports and control registers are accessed?
> Are the internal peripherals consistent? That is, do we have the same
> registers with the same bit names in the same bit positions?

The same ARM core will be identical for different licensees, but each 
manufacturer implements their own peripherals.

>
> Is code written for one suplpier's ARM portable to other supplier's
> chips? Does it have to be recompiled to shift to another chip (with
> "same" features).

The peripheral stuff will have to be rewritten.

Leon
-- 
Leon Heller
G1HSM