Lpc2000

Hi,

I'm trying to use the version downloaded from your site with IAR, but it's not detecting the target - it advises me to check connections and power.  This is on a system (Thinkpad R51) that refuses to work with OCD Commander at any speed, probably because it's too fast.  It works fine with Rowley.  I'm using the Olimex wiggler-clone.  Has anyone seen similar issues with H-JTAG? Does it have limitations with regard to system speed or port configuration - ECP/EPP/Bidirectional?  

Is Olimex coming out with an affordible USB JTAG anytime soon?

Thanks, Karim

-----Original Message-----
From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com]On Behalf
Of tsvetanusunov
Sent: Tuesday, January 03, 2006 8:07 AM
To: lpc2000@yahoogroups.com
Subject: [lpc2000] Re: H-JTAG update - new release from TwentyOne works
with LPC :)


Hi,

Twentyone just e-mailed me new release of H-JTAG which takes into 
account the JTAG-ENABLE signal of our Wiggler clone.
Now it works with everything like SAM7, LPCxxx, STR7xx, TMS470 and 
only refuses to work with OKI!
Accordig to the author H-JTAG is tested to work with all these cores: 
ARM7TDMI, ARM7TDMI-S, ARM710T, ARM720T, ARM740T, ARM9TDMI, ARM920T, 
ARM922T and ARM940T.

The IAR Flash loader programs in Flash with about 30% slower speed 
than J-LINK adapter we have, which is pretty much acceptable for x10 
times lower cost solution :)

I hope twentyone will upload the new fix on his web page soon, if not 
I'll ask permission to put on our ARM-JTAG web page copy of the H-
JTAG install he e-mailed me.

We are going to play more with H-JTAG later today and report if there 
are any other issues. 

Best regards
Tsvetan

--- In lpc2000@yahoogroups.com, "derbaier" <dershu@s...> wrote:
>
> --- In lpc2000@yahoogroups.com, "tsvetanusunov" <tusunov@m...> 
wrote:
> > this is very interesting what are your parallel port settings? 
> > what LPT cable length do you use?
> > anything weird around your IDE settings?
> > if it works by you there should be no any reason to refuse here :)
> > 
> > Tsvetan
> >
> 
> I can throw a little more confusion into the pot.    :-)
> 
> I followed your link and picked up the JTAG Debug Agent from there. 
It
> appears to be an older version of H-JTAG, also from twentyone or
> Tang-ZhongGen???  On my system JTAG Debug Agent also can not 
recognize
> an LPC2148 on an Olimex board, but it does reset the LPC2148 every
> time it tries to recognize it. That is more than H-JTAG was able to
> do. One big difference between the two code sets is that JTAG Debug
> Agent uses the original Dale Roberts GiveIO.sys for high speed IO on
> WinXP, while H-JTAG uses H-JTAG.sys for the same function. GiveIO
> works very well on my WinXP system, but I am not so sure about
> H-JTAG.sys since I do not have a way of independantly testing like I
> do with GiveIO.
> 
> Here are my answers to your questions.
> Q1.  What are your parallel port settings?
> A1.  EPP port at 0x378
> 
> Q2. What LPT cable length do you use?
> A2. 1 meter cable originally supplied with an EasyICE.( works 
great!)
> 
> Q3. Anything weird around your IDE settings?
>    
> A3. Does not really matter. H-JTAG displays the ID in the center of
> the H-JTAG server screen. In my case, both ARM SDT2.51 and IAR
> Embedded Workbench fail when the H-JTAG server indicates "UNKNOWN" 
in
> the center of it's screen.
> 
> -- Dave
>






 
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