Lpc2000

I'm trying to get a Wiggler working on my prototype, without any success.
8-(

The connections I'm using are basically the same as on the Atmel EB01/EB40
board, except that I haven't bothered with the 10 pF capacitors.

I've got DBGSEL tied high, and TDI (pin 2), TMS (pin 48), TCK (pin 1) and
NRST (pin 6) pulled up with 10K resistors. TDO goes to pin 3. I've had to
use rather long leads (about 3") from the JTAG header to the LPC2104, but
they are roughly the same length.

The Macraigor software can't find anything. The Wiggler works OK with the
Atmel EB01.

Has anyone got any suggestions?

Leon
--
Leon Heller, G1HSM
Email: aqzf13@...
http://www.geocities.com/leon_heller

Maybe the JTAG interface on the chip is disabled?


--- In lpc2100@yahoogroups.com, "Leon Heller" <leon_heller@h...> wrote:
> I'm trying to get a Wiggler working on my prototype, without any
success.
> 8-(
> 
> The connections I'm using are basically the same as on the Atmel
EB01/EB40
> board, except that I haven't bothered with the 10 pF capacitors.
> 
> I've got DBGSEL tied high, and TDI (pin 2), TMS (pin 48), TCK (pin
1) and
> NRST (pin 6) pulled up with 10K resistors. TDO goes to pin 3. I've
had to
> use rather long leads (about 3") from the JTAG header to the
LPC2104, but
> they are roughly the same length.
> 
> The Macraigor software can't find anything. The Wiggler works OK
with the

> Atmel EB01.
> 
> Has anyone got any suggestions?
> 
> Leon
> --
> Leon Heller, G1HSM
> Email: aqzf13@d...
> http://www.geocities.com/leon_heller

Try tu pull up the RTCK aswell. This thing does have two sets of JTAG
pins. IF RTCK and DBGSEL are both high during reset then the pins
0.17-0.21 will be used (figure 42 on users manual).

--- In lpc2100@yahoogroups.com, "peetervois" <peetervois@y...> wrote:

> Maybe the JTAG interface on the chip is disabled?
> 
> 
> --- In lpc2100@yahoogroups.com, "Leon Heller" <leon_heller@h...> wrote:
> > I'm trying to get a Wiggler working on my prototype, without any
> success.
> > 8-(
> > 
> > The connections I'm using are basically the same as on the Atmel
> EB01/EB40
> > board, except that I haven't bothered with the 10 pF capacitors.
> > 
> > I've got DBGSEL tied high, and TDI (pin 2), TMS (pin 48), TCK (pin
> 1) and
> > NRST (pin 6) pulled up with 10K resistors. TDO goes to pin 3. I've
> had to
> > use rather long leads (about 3") from the JTAG header to the
> LPC2104, but
> > they are roughly the same length.
> > 
> > The Macraigor software can't find anything. The Wiggler works OK
> with the
> > Atmel EB01.
> > 
> > Has anyone got any suggestions?
> > 
> > Leon
> > --
> > Leon Heller, G1HSM
> > Email: aqzf13@d...
> > http://www.geocities.com/leon_heller

--- In lpc2100@yahoogroups.com, "peetervois" <peetervois@y...> wrote:
> Try tu pull up the RTCK aswell. This thing does have two sets of JTAG
> pins. IF RTCK and DBGSEL are both high during reset then the pins
> 0.17-0.21 will be used (figure 42 on users manual).

RTCK has an internal pullup, so it should be OK.

Leon

Make sure your JTAG connector (assuming the standard 20-pin 
connector) has the following signals:

1)3.3V
2)3.3V
3)TRST
4,6,8,10,12,14,16,18, and 20)GND
5)TDI
7)TMS
9)TCK
11)RTCK
13)TDO
15)RST
17)Pull low via 10K resistor
19)N/C

Richard





--- In lpc2100@yahoogroups.com, "leon_heller" <leon_heller@h...> 
wrote:
> --- In lpc2100@yahoogroups.com, "peetervois" <peetervois@y...> 
wrote:
> > Try tu pull up the RTCK aswell. This thing does have two sets of 
JTAG

> > pins. IF RTCK and DBGSEL are both high during reset then the pins
> > 0.17-0.21 will be used (figure 42 on users manual).
> 
> RTCK has an internal pullup, so it should be OK.
> 
> Leon

At 05:55 PM 11/26/03 +0000, you wrote:
>Make sure your JTAG connector (assuming the standard 20-pin
>connector) has the following signals:
>
>1)3.3V
>2)3.3V
>3)TRST
>4,6,8,10,12,14,16,18, and 20)GND
>5)TDI
>7)TMS
>9)TCK
>11)RTCK
>13)TDO
>15)RST
>17)Pull low via 10K resistor
>19)N/C
>
>Richard

Hmmm, I've got pins 15, 17, and 19 as N/C (As does Nohau on their 
evaluation board).  All the interface specs I saw indicated that should 
work.  Perhaps the Wiggler's requirements are different?  I do have an 
issue making connections consistently to either the Nohau board or my 
own.  Once they communicate everything seems fine.

Time for some testing.

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III

--- In lpc2100@yahoogroups.com, "Richard" <richas@y...> wrote:
> Make sure your JTAG connector (assuming the standard 20-pin 
> connector) has the following signals:
> 
> 1)3.3V
> 2)3.3V
> 3)TRST
> 4,6,8,10,12,14,16,18, and 20)GND
> 5)TDI
> 7)TMS
> 9)TCK
> 11)RTCK
> 13)TDO
> 15)RST
> 17)Pull low via 10K resistor
> 19)N/C
> 
> Richard


Thanks, Richard.

Connecting nTRST did the trick. I hadn't bothered with it as Atmel
didn't use it with their interface, although Macraigor includes it in
their 'Common OCD pinouts' doc. I'll put the details on my web page,
now it's working.

Leon

--- In lpc2100@yahoogroups.com, Robert Adsett <radsett@a...> wrote:
> At 05:55 PM 11/26/03 +0000, you wrote:
> >Make sure your JTAG connector (assuming the standard 20-pin
> >connector) has the following signals:
> >
> >1)3.3V
> >2)3.3V
> >3)TRST
> >4,6,8,10,12,14,16,18, and 20)GND
> >5)TDI
> >7)TMS
> >9)TCK
> >11)RTCK
> >13)TDO
> >15)RST
> >17)Pull low via 10K resistor
> >19)N/C
> >
> >Richard
> 
> Hmmm, I've got pins 15, 17, and 19 as N/C (As does Nohau on their 
> evaluation board).  All the interface specs I saw indicated that should 
> work.  Perhaps the Wiggler's requirements are different?  I do have an 
> issue making connections consistently to either the Nohau board or my 
> own.  Once they communicate everything seems fine.

I've got 17 and 19 NC, with 15 pulled up and connected to nRST.

Leon

I don't know about the Wiggler, however, we recommend that our customers
follow the guidelines as outlined below:
 
http://www.ashling.com/support/lpc2100/dsapb_lpc2100/APB156-V2U-ARMConne
ct.pdf
 


Hugh @ http://www.ashling.com/support/lpc2100/ 

-----Original Message-----
From: Robert Adsett [mailto:radsett@...] 
Sent: 26 November 2003 18:17
To: lpc2100@yahoogroups.com
Subject: Re: [lpc2100] Re: Wiggler JTAG interface


At 05:55 PM 11/26/03 +0000, you wrote:
>Make sure your JTAG connector (assuming the standard 20-pin
>connector) has the following signals:
>
>1)3.3V
>2)3.3V
>3)TRST
>4,6,8,10,12,14,16,18, and 20)GND
>5)TDI
>7)TMS
>9)TCK
>11)RTCK
>13)TDO
>15)RST
>17)Pull low via 10K resistor
>19)N/C
>
>Richard

Hmmm, I've got pins 15, 17, and 19 as N/C (As does Nohau on their 
evaluation board).  All the interface specs I saw indicated that should 
work.  Perhaps the Wiggler's requirements are different?  I do have an 
issue making connections consistently to either the Nohau board or my 
own.  Once they communicate everything seems fine.

Time for some testing.

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III



Yahoo! Groups Sponsor	

ADVERTISEMENT
 
<http://rd.yahoo.com/SIG=12c12ukvf/M=267637.4116732.5333197.1261774/D=eg
roupweb/S=1706554205:HM/EXP=1069957023/A=1853619/R=0/*http://www.netflix
.com/Default?mqso=60178356&partid=4116732> click here	
 
<http://us.adserver.yahoo.com/l?M=267637.4116732.5333197.1261774/D=egrou
pmail/S=:HM/A=1853619/rand=395132081> 	

To unsubscribe from this group, send an email to:
lpc2100-unsubscribe@yahoogroups.com



Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service
<http://docs.yahoo.com/info/terms/> .

Thanks Hugh,
      That is a helpful document.

Richard


--- In lpc2100@yahoogroups.com, "Hugh O'Keeffe" <hugh.okeeffe@a...> 
wrote:
> I don't know about the Wiggler, however, we recommend that our 
customers
> follow the guidelines as outlined below:
>  
> http://www.ashling.com/support/lpc2100/dsapb_lpc2100/APB156-V2U-
ARMConne
> ct.pdf
>  
> 
> 
> Hugh @ http://www.ashling.com/support/lpc2100/ 
> 
> -----Original Message-----
> From: Robert Adsett [mailto:radsett@a...] 
> Sent: 26 November 2003 18:17
> To: lpc2100@yahoogroups.com
> Subject: Re: [lpc2100] Re: Wiggler JTAG interface
> 
> 
> At 05:55 PM 11/26/03 +0000, you wrote:
> >Make sure your JTAG connector (assuming the standard 20-pin
> >connector) has the following signals:
> >
> >1)3.3V
> >2)3.3V
> >3)TRST
> >4,6,8,10,12,14,16,18, and 20)GND
> >5)TDI
> >7)TMS
> >9)TCK
> >11)RTCK
> >13)TDO
> >15)RST
> >17)Pull low via 10K resistor
> >19)N/C
> >
> >Richard
> 
> Hmmm, I've got pins 15, 17, and 19 as N/C (As does Nohau on their 
> evaluation board).  All the interface specs I saw indicated that 
should 
> work.  Perhaps the Wiggler's requirements are different?  I do have 
an 
> issue making connections consistently to either the Nohau board or 
my 
> own.  Once they communicate everything seems fine.
> 
> Time for some testing.
> 
> Robert
> 
> " 'Freedom' has no meaning of itself.  There are always 
restrictions,
> be they legal, genetic, or physical.  If you don't believe me, try 
to
> chew a radio signal. "
> 
>                          Kelvin Throop, III
> 
> 
> 
> Yahoo! Groups Sponsor	
> 
> ADVERTISEMENT
>  
> 
<http://rd.yahoo.com/SIG=12c12ukvf/M=267637.4116732.5333197.1261774/D=
eg
> 
roupweb/S=1706554205:HM/EXP=1069957023/A=1853619/R=0/*http://www.netfl
ix
> .com/Default?mqso=60178356&partid=4116732> click here	
>  
> <http://us.adserver.yahoo.com/l?
M=267637.4116732.5333197.1261774/D=egrou

> pmail/S=:HM/A=1853619/rand=395132081> 	
> 
> To unsubscribe from this group, send an email to:
> lpc2100-unsubscribe@yahoogroups.com
> 
> 
> 
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service
> <http://docs.yahoo.com/info/terms/> .

>From: "Hugh O'Keeffe" <hugh.okeeffe@...>
>Reply-To: lpc2100@yahoogroups.com
>To: <lpc2100@yahoogroups.com>
>Subject: RE: [lpc2100] Re: Wiggler JTAG interface
>Date: Wed, 26 Nov 2003 18:32:17 -0000
>
>I don't know about the Wiggler, however, we recommend that our customers
>follow the guidelines as outlined below:
>
>http://www.ashling.com/support/lpc2100/dsapb_lpc2100/APB156-V2U-ARMConne
>ct.pdf


My Wiggler interface conforms to that, now.

I've just tried the Rowley debugger with my hardware - it works! Good thing, 
as I've got a sizeable application I need to develop.

Leon

_________________________________________________________________
Get Hotmail on your mobile phone http://www.msn.co.uk/msnmobile

At 06:29 PM 11/26/03 +0000, you wrote:
>--- In lpc2100@yahoogroups.com, Robert Adsett <radsett@a...> wrote:
> > At 05:55 PM 11/26/03 +0000, you wrote:
> > >15)RST
> > >17)Pull low via 10K resistor
> > >19)N/C
> > >
> > >Richard
> >
> > Hmmm, I've got pins 15, 17, and 19 as N/C (As does Nohau on their
> > evaluation board).  All the interface specs I saw indicated that should
> > work.  Perhaps the Wiggler's requirements are different?  I do have an
> > issue making connections consistently to either the Nohau board or my
> > own.  Once they communicate everything seems fine.
>
>I've got 17 and 19 NC, with 15 pulled up and connected to nRST.

As it turns out it is none of those.  15,17,19 as N/C works fine (I came up 
with that after reading documentatio from ARM, Nohau and Ashling and 
attempting to resolve the apparent contradictions).  I will probably revise 
the board at some point to allow the pull-dn and connection to reset.

The real problem I was having turned out to be the parallel port.  The 
wiggler will not work with the port in ECP mode (since it literally shows 
up with no documentation that was not apparent).  I switched it to EPP and 
have had no problems since.  I can even set breakpoints now.  The last time 
I checked my parallel port mode was probably more than 5 years ago.  Since 
the problem was appear to get worse I tracked down the faq on Macraigors site.

Of course it also didn't help that I did part of my testing with the JTAG 
disabled on the board.  I KNEW I put those jumpers on for a reason ;)

Scream!

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III

--- In lpc2100@yahoogroups.com, Robert Adsett <radsett@a...> wrote:
> 


> The real problem I was having turned out to be the parallel port.  The 
> wiggler will not work with the port in ECP mode (since it literally
shows 
> up with no documentation that was not apparent).  I switched it to
EPP and 
> have had no problems since.  I can even set breakpoints now.  The
last time 
> I checked my parallel port mode was probably more than 5 years ago.
 Since 
> the problem was appear to get worse I tracked down the faq on
Macraigors site.

I actually wrote 'EPP' on my Wiggler, to remind me, after I spent a
long time getting it to work once.

Leon

At 09:04 PM 11/26/03 +0000, you wrote:
>I actually wrote 'EPP' on my Wiggler, to remind me, after I spent a
>long time getting it to work once.

Good idea.  I just followed your example.  Thanks.

Robert


" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III