Lpc2000

Dominic Rath wrote:

> Hello Ake,
>
> On Wednesday 21 December 2005 10:51, Ake Hedman, eurosource wrote:
> > Hi Dominic,
> >
> > Sounds very interesting! How far have you come in this development?
> > What remains to do?  Maybe I could help on some development...
> Currently, it's mostly testing and debugging - differents hosts, 
> targets, jtag
> interfaces. Stability and correctness are most important for a 
> debugger, so
> currently I'm writing small test cases, run them in target RAM, and 
> see if
> the state captured by the debugger is correct. What I'm interested in is
> people trying the software, and reporting problems they've experienced -
> development contributions are of course welcome, too.
> What's currently missing is flash write support, but that's easy to 
> add (for
> the LPCs), and MMU/Cache support, which isn't necessary for LPCs.
>
> >
> > So any FT232x based ARM board would do for this? Is the board
> > requirements documented somewhere.
> No, FT2232C, not FT232. The FT2232C comes with a multi-protocol 
> synchronous
> serial engine that can be configured as a JTAG TAP master. The 
> DLP2232M is an
> evaluation module available from FTDI (www.ftdichip.com), it comes 
> with the
> chip, a USB connector, eeprom, crystal, i.e. all the supporting 
> circuitry.
> The FT2232C has two I/O channels which accept either 3.3V or 5V logic 
> - USB
> runs at 5V, so if you want to debug 3.3V targets you simply supply the 
> chip
> with 3.3V from a voltage regulator powered by the USB. My diploma thesis
> (available at the project site openocd.berlios.de) contains schematics 
> for a
> very simple interface. I'll upload schematics for a more advanced design
> within the next days.
>
> >
> > /Ake
>
> Kind regards,
>
> Dominic


Hi Dominic,

OK now I see. I will try this out also found your diploma thesis which 
will be good reading for Christmas.

Cheers
/Ake


-- 
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Ake Hedman (YAP - Yet Another Programmer)
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