[Efi332] Standard GNU C library for CYGWIN

[Doug Brunner]

I don't know if it'll help you or not, but I've written an ISR in 
assembly (currently untested) that uses the QSCI, and a pair of circular 
buffers to feed it--this allows the ISR to keep feeding the transmit 
queue and pulling data off the receive queue without intervention by the 
main program.

Let me know if you're interested,

--Doug Brunner

David Eicher wrote:

> Hi Kevin,
>
> Yep, I?m not aware that a library exists for SCI either. So.., it 
> looks like I?m going to build one. One thing I struggle with is, use 
> SCI or QSCI? My ultimate goal is to be using QSCI with interrupts. But 
> that might be a bit much to hope for initially. Maybe I?ll try to walk 
> before I run, and just use basic character puts and gets. Then, when 
> I?m more familiar with the process of building a library (never done 
> it), I?ll go for the more powerful approach.
>
> That is nice to know that the stdlib with GCC is so big, gotta stay 
> away from that!
>
> Thanks,
>
> Dave
>
> ------------------------------------------------------------------------
>
> *From:* efi332-bounces at diy-efi.org [mailto:efi332-bounces at diy-efi.org] 
> *On Behalf Of *Kevin Yachimec
> *Sent:* Friday, July 22, 2005 9:33 AM
> *To:* efi332 at diy-efi.org
> *Subject:* RE: [Efi332] Standard GNU C library for CYGWIN
>
> Dave,
>
> I haven't built GCC for the 555 but I have re-built GCC for the 332 
> many times and I have found that newlib is much better than stdlib 
> that comes with GCC. For example if you build the 332 source code on 
> Sourceforge with the newlib it's almost half the size of stdlib. As 
> far as printf() I have seen a number of versions for embedded work but 
> you would be required to build from source in order to use it. I don't 
> know of anything that's ready to work with SCI out of the box.
>
> Kevin
>
>     ------------------------------------------------------------------------
>
>     *From:* efi332-bounces at diy-efi.org
>     [mailto:efi332-bounces at diy-efi.org] *On Behalf Of *David Eicher
>     *Sent:* Friday, July 22, 2005 6:22 AM
>     *To:* efi332 at diy-efi.org
>     *Subject:* [Efi332] Standard GNU C library for CYGWIN
>
>         Hello list,
>
>         Has anyone built a standard C library for the GNU C running on
>         cygwin? I?m looking for the prinf( ) function (and others),
>         that have been re-directed to the SCI serial interface for
>         MPC555/565.
>
>         Thanks,
>
>         Dave
>
>
>
>------------------------------------------------------------------------
>
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