Reply by derbaier October 21, 20062006-10-21
--- In l..., Kai Gossner wrote:

>
> I think he was talking about the new "ARM-USB-OCD" and not about the
> simple parallel port Wiggler clone from Olimex.
>

Oops, I forgot that there are now two different ones from Olimex.

-- Dave

An Engineer's Guide to the LPC2100 Series

Reply by Kai Gossner October 21, 20062006-10-21
> > Hear hear. If the Olimex JTAG could work with uVision it would be
> > perfect.
> Actually, the Olimex JTAG seems to work very well with uVision3 when
> H-JTAG is used as the RDI agent between them. I've only tried it a few
> times since I prefer a different toolset, but it worked well on the
> tiimes that I tried it.

I think he was talking about the new "ARM-USB-OCD" and not about the
simple parallel port Wiggler clone from Olimex.
Reply by derbaier October 21, 20062006-10-21
--- In l..., "ghazanhaider" wrote:
>
> --- In l..., "Eric Engler" wrote:
> >
> > Have you considered interfacing your JTAG device to uVision?
> >
> > Eric
> > Hear hear. If the Olimex JTAG could work with uVision it would be
> perfect.

Actually, the Olimex JTAG seems to work very well with uVision3 when
H-JTAG is used as the RDI agent between them. I've only tried it a few
times since I prefer a different toolset, but it worked well on the
tiimes that I tried it.

-- Dave
Reply by slawcus October 21, 20062006-10-21
--- In l..., "Eric Engler" wrote:
>
> --- In l..., "tsvetanusunov" wrote:
>
> > Keil didn't do any protection of their JTAG hardware and actually
> > there are many plans how to make U-Link on the internet...
>
> I understand what you're saying and I know your JTAG device is not a
> clone of anyone else's.
>

How do you know that? Isn't wiggler clone (from where is original
design)? What about AVR USB JTAG? I think that even design of
ARM-USB-OCD is from somewhere else (upgraded of course, but so what).
Reply by ghazanhaider October 21, 20062006-10-21
--- In l..., "Eric Engler" wrote:
>
> Have you considered interfacing your JTAG device to uVision?
>
> Eric
>

Hear hear. If the Olimex JTAG could work with uVision it would be
perfect. I will almost be enough reason to purchase uVision. I havent
seriously tried IAR but uVision seemed sufficient for my purposes
except for the expensive and slow jtag. n-link might change that.

I'd rather buy Olimex than n-link, even at $19 more.
Reply by Eric Engler October 20, 20062006-10-20
--- In l..., "tsvetanusunov" wrote:

> Keil didn't do any protection of their JTAG hardware and actually
> there are many plans how to make U-Link on the internet...

I understand what you're saying and I know your JTAG device is not a
clone of anyone else's.

I saw on Keil's site that they have an app note that tells how you can
interface any JTAG hardware to their uVision IDE. Also, Luminary has
done this with their integrated USB JTAG device on their dev boards.

Have you considered interfacing your JTAG device to uVision?

Eric
Reply by ghazanhaider October 20, 20062006-10-20
I dont know how legal is it to buy and use n-link in a production
environment given that it impersonates another hardware, after all
most Wigglers are clones of the original. I wish uvision allowed the
use of a wiggler or the Olimex USB JTAG.

I'd happily pay for U-link or j-link if it worked as reliably as the
hardware it debugs with no misfires and disconnections at all.

--- In l..., "tsvetanusunov" wrote:
> > Is the N-Link JTAG rock solid reliable?
>
> N-Link is nothing but pirated version of U-Link produced in Thailand,
> these guys are quite active on eBay so I wonder how ARM/Keil didn't
> noticed them yet ;)
>
> Keil didn't do any protection of their JTAG hardware and actually
> there are many plans how to make U-Link on the internet, it's
> basically Cypress chip with external EEPROM where the USB ID for U-
> Link is stored, all code is loaded in the Cypress chip RAM during the
> USB enumeration by the DLL so as far you put the USB ID for U-Link in
> the EEPROM you can make your own U-Link.
>
> For the last few months I got at least 3 proposals from China to
> start selling "their" Keil U-link compatible JTAGs but said no thanks!
>
> Best regards
> Tsvetan
> ---
> PCB prototypes for $26 at http://run.to/pcb
> (http://www.olimex.com/pcb)
> Development boards for ARM, AVR, PIC, MAXQ2000 and MSP430
> (http://www.olimex.com/dev)
>
Reply by somboon sopee October 20, 20062006-10-20
Now, N-link supports LPC2364, LPC2366, LPC2368, LPC2378 :)

On 10/20/06, Sam Laur wrote:
>
> ghazanhaider wrote:
> > I've never used a USB based JTAG so I assumed after paying $300 you'd
> > get something that works. I have a wiggler and its a real pain. Reads
> > the registers fine the first time, and crashes the second time around.
> > I've never been able to write to the flash. OpenOCD has its quirks and
> > the warnings I get from it while using the wiggler just gives me a bad
> > feeling.
>
> Strange, I'm using both a home-made and an Olimex-made wiggler with
> Rowley CrossStudio and it works really well, both debug and flashing
> on the LPC2000 varieties I've tested it on. Rowley also have their own
> USB JTAG (CrossLink) that's a bit faster. I only have experience
> through the LPC2138 EVB that has it integrated, so I've debugged
> the larger programs elsewhere, with the wigglers.
>
> But I still miss the one-wire BDM of the Freescale HCS12 I used
> before...
>
> Sam

--
N-Link ARM JTAG & ARM7 Boards
--------------
http://www.micro4you.com
http://stores.ebay.com/Micro4you-Store
Reply by Sam Laur October 20, 20062006-10-20
ghazanhaider wrote:
> I've never used a USB based JTAG so I assumed after paying $300 you'd
> get something that works. I have a wiggler and its a real pain. Reads
> the registers fine the first time, and crashes the second time around.
> I've never been able to write to the flash. OpenOCD has its quirks and
> the warnings I get from it while using the wiggler just gives me a bad
> feeling.

Strange, I'm using both a home-made and an Olimex-made wiggler with
Rowley CrossStudio and it works really well, both debug and flashing
on the LPC2000 varieties I've tested it on. Rowley also have their own
USB JTAG (CrossLink) that's a bit faster. I only have experience
through the LPC2138 EVB that has it integrated, so I've debugged
the larger programs elsewhere, with the wigglers.

But I still miss the one-wire BDM of the Freescale HCS12 I used
before...

Sam
Reply by tsvetanusunov October 20, 20062006-10-20
> Is the N-Link JTAG rock solid reliable?

N-Link is nothing but pirated version of U-Link produced in Thailand,
these guys are quite active on eBay so I wonder how ARM/Keil didn't
noticed them yet ;)

Keil didn't do any protection of their JTAG hardware and actually
there are many plans how to make U-Link on the internet, it's
basically Cypress chip with external EEPROM where the USB ID for U-
Link is stored, all code is loaded in the Cypress chip RAM during the
USB enumeration by the DLL so as far you put the USB ID for U-Link in
the EEPROM you can make your own U-Link.

For the last few months I got at least 3 proposals from China to
start selling "their" Keil U-link compatible JTAGs but said no thanks!

Best regards
Tsvetan
---
PCB prototypes for $26 at http://run.to/pcb
(http://www.olimex.com/pcb)
Development boards for ARM, AVR, PIC, MAXQ2000 and MSP430
(http://www.olimex.com/dev)