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[avr-libc-dev] Re: Iotn13.h
From: |
Theodore A. Roth |
Subject: |
[avr-libc-dev] Re: Iotn13.h |
Date: |
Fri, 21 May 2004 10:02:27 -0700 (PDT) |
Of course I forgot to attach the patch in the last message... :-(
On Thu, 20 May 2004, Bruce Graham wrote:
> Ted,
>
> Here is my suggested patch for the header iotn13.h I did not test it
> very well since I have been unable to run "avr-as" by itself
> successfully. I seem to be short the right document, which I probably
> have but can't find, or less likely don't have and can't find.
>
> Some things may be controversial:
> (1) When there is no External Memory -- should XRAMEND be 0? or should
> it be equal to RAMEND. Actually I could go either way and I can't see
> where the symbol is used -- probably in malloc.
> (2) Although PB5 is a handy shorthand, the tradition for bit names seems
> to be:
> (a) use the data sheet name if a name is given
> (b) concatenate numbers to the register name if a name is not given
> (3) I was not sure what SPEN referred to in register SPMCSR. I could
> not find it in the data sheet, nor could I find it in one or two other
> data sheets I checked. I hope it was just a mistake, but I could
> believe it came form an earlier version of the family.
---
Ted Roth
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avr-libc-iotn13-comments.diff
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