Thank you all for your answers !
By the way, do you know which pin of the jtag connector is used for RTCK
?
Tom, is there something in the BDI2000 manual ?
Ed, I think it would be good to add RTCK even it is not in the original
wiggler design.
Have a nice day,
Guido
________________________________
From: lpc2000@lpc2... [mailto:lpc2000@lpc2...] On Behalf
Of Dan Beadle
Sent: Mittwoch, 18. Januar 2006 17:29
To: lpc2000@lpc2...
Subject: RE: [lpc2000] JTAG - RTCK ?
It is the Return Clock. It is used for deglitching the return signal.
Ideally, the chip under test would have zero delay getting the clock on
board. But it does have some delay. The RTCK is the image to of the
JTAG clock being used by the chip. For very fast clocking, this allows
the debugger to sync up with the chip under test.
_____
From: lpc2000@lpc2... [mailto:lpc2000@lpc2...] On Behalf
Of Leon Heller
Sent: Wednesday, January 18, 2006 3:03 AM
To: lpc2000@lpc2...
Subject: Re: [lpc2000] JTAG - RTCK ?
----- Original Message -----
From: "Soentgerath, Guido" <Guido.Soentgerath@Guid...>
To: <lpc2000@lpc2...>
Sent: Wednesday, January 18, 2006 9:05 AM
Subject: [lpc2000] JTAG - RTCK ?
> Hello all,
> can someone give me an explanation for RTCK or a hint where I can
find
> some more infos about this signal ?
> Thanks in advance!
I found a document on the ARM web site a long time ago which describes
the
JTAG interface in detail. Can't remember where, though.
Leon
_____
> .
_____
________________________________
> .
________________________________
Re: JTAG - RTCK ? / Building DIY wiggler w/74VHC14
Started by ●January 20, 2006
Reply by ●January 20, 20062006-01-20
--- In lpc2000@lpc2..., "Soentgerath, Guido"
<Guido.Soentgerath@s...> wrote:
>
> Thank you all for your answers !
>
> By the way, do you know which pin of the jtag connector is used for RTCK
> ?
The Lauterbach Trace32 uses Pin-11 of the 20 pin JTAG connector for
RTCK. They have usually been quite good at sticking with ARM's
specifications, so that is *probably* the pin specified by ARM.
Unfortunately, AN31 predates ARM's use of RTCK, so it does not mention
it at all.
-- Dave
<Guido.Soentgerath@s...> wrote:
>
> Thank you all for your answers !
>
> By the way, do you know which pin of the jtag connector is used for RTCK
> ?
The Lauterbach Trace32 uses Pin-11 of the 20 pin JTAG connector for
RTCK. They have usually been quite good at sticking with ARM's
specifications, so that is *probably* the pin specified by ARM.
Unfortunately, AN31 predates ARM's use of RTCK, so it does not mention
it at all.
-- Dave
Reply by ●January 20, 20062006-01-20
Soentgerath, Guido wrote:
>Thank you all for your answers !
>
>By the way, do you know which pin of the jtag connector is used for RTCK
>?
>Tom, is there something in the BDI2000 manual ? I don't use the RTCK signal. The manual says something about a "special
cable", they probably added one more wire to the present cable that I
have... The wire they use is some 11 or 15 strand (maybe even 19
strand) super flexible stuff.
TomW --
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
----------------
>Thank you all for your answers !
>
>By the way, do you know which pin of the jtag connector is used for RTCK
>?
>Tom, is there something in the BDI2000 manual ? I don't use the RTCK signal. The manual says something about a "special
cable", they probably added one more wire to the present cable that I
have... The wire they use is some 11 or 15 strand (maybe even 19
strand) super flexible stuff.
TomW --
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
----------------
Reply by ●January 20, 20062006-01-20
Soentgerath, Guido wrote:
>Thank you all for your answers !
>
>By the way, do you know which pin of the jtag connector is used for RTCK
>?
>Tom, is there something in the BDI2000 manual ? It is Pin 11 on the 20 pin connector, 14 pin connector doesn't show any.
Myself, I put a 10 pin header on my board and just moved the wires
around on the 14pin cable...
TomW
--
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
----------------
>Thank you all for your answers !
>
>By the way, do you know which pin of the jtag connector is used for RTCK
>?
>Tom, is there something in the BDI2000 manual ? It is Pin 11 on the 20 pin connector, 14 pin connector doesn't show any.
Myself, I put a 10 pin header on my board and just moved the wires
around on the 14pin cable...
TomW
--
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
----------------
Reply by ●January 20, 20062006-01-20
Thanks Tom, Dave,
it seems that pin 11 is the RTCK pin.
Guido ________________________________
From: lpc2000@lpc2... [mailto:lpc2000@lpc2...] On Behalf
Of Tom Walsh
Sent: Freitag, 20. Januar 2006 14:13
To: lpc2000@lpc2...
Subject: Re: [lpc2000] JTAG - RTCK ? / Building DIY wiggler w/74VHC14 Soentgerath, Guido wrote:
>Thank you all for your answers !
>
>By the way, do you know which pin of the jtag connector is used for
RTCK
>?
>Tom, is there something in the BDI2000 manual ? It is Pin 11 on the 20 pin connector, 14 pin connector doesn't show any.
Myself, I put a 10 pin header on my board and just moved the wires
around on the 14pin cable...
TomW
--
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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________________________________
it seems that pin 11 is the RTCK pin.
Guido ________________________________
From: lpc2000@lpc2... [mailto:lpc2000@lpc2...] On Behalf
Of Tom Walsh
Sent: Freitag, 20. Januar 2006 14:13
To: lpc2000@lpc2...
Subject: Re: [lpc2000] JTAG - RTCK ? / Building DIY wiggler w/74VHC14 Soentgerath, Guido wrote:
>Thank you all for your answers !
>
>By the way, do you know which pin of the jtag connector is used for
RTCK
>?
>Tom, is there something in the BDI2000 manual ? It is Pin 11 on the 20 pin connector, 14 pin connector doesn't show any.
Myself, I put a 10 pin header on my board and just moved the wires
around on the 14pin cable...
TomW
--
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
---------------- SPONSORED LINKS
Microcontrollers
<http://groups.yahoo.com/gads?t=ms&k=Microcontrollers&w1=Microcontroller
s&w2=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c=4
&s&.sig=mfaAujKZXA2Z_vxre9sGnQ> Microprocessor
<http://groups.yahoo.com/gads?t=ms&k=Microprocessor&w1=Microcontrollers&
w2=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c=4&s
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> .
________________________________
