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Discussion Groups
Discussion Groups | Freescale DSPs | JTAG "Cannot connect to Board"
Technical discussions about Freescale (Motorola) DSPs (including the DSP56000, DSP56300, DSP56600, 56800 DSPs).
JTAG "Cannot connect to Board" - yurubutugralb - Jun 30 16:12:00 2005
Hello all,
Using CodeWarrior™ Development Studio for Motorola DSP56800
version 5.1
targeting the DSP56F805 chip and using Macraigor Wiggler for JTAG.
I can download to the EVM but not to my project board.
Something changed because I used to be able to do both.
Please point me to what levels, waveforms to look for in
troubleshooting.
Thanks in advance!
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Re: JTAG "Cannot connect to Board" - Charlie W - Jul 2 12:01:00 2005
Did you try to disable the EVM on board JTAG converter
and use on board JTAG header and Wiggler to download
code to EVM? If it works, it means Wiggler is
functional. We have seen such similar problem. What we
did is to add termination or booster on transmission
line. You can try to either use longer parallel cable
(connect two cables together) or short parallel cable.
By the way, check your /reset and /TRST whether they
correctly connected to Wiggler.
Charlie W
--- yurubutugralb <jim.marvel@jim....> wrote:
> Hello all,
> Using CodeWarrior™ Development Studio for Motorola
> DSP56800
> version 5.1
> targeting the DSP56F805 chip and using Macraigor
> Wiggler for JTAG.
>
> I can download to the EVM but not to my project
> board.
> Something changed because I used to be able to do
> both.
>
> Please point me to what levels, waveforms to look
> for in
> troubleshooting.
>
> Thanks in advance!
__________________________________
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and use on board JTAG header and Wiggler to download
code to EVM? If it works, it means Wiggler is
functional. We have seen such similar problem. What we
did is to add termination or booster on transmission
line. You can try to either use longer parallel cable
(connect two cables together) or short parallel cable.
By the way, check your /reset and /TRST whether they
correctly connected to Wiggler.
Charlie W
--- yurubutugralb <jim.marvel@jim....> wrote:
> Hello all,
> Using CodeWarrior™ Development Studio for Motorola
> DSP56800
> version 5.1
> targeting the DSP56F805 chip and using Macraigor
> Wiggler for JTAG.
>
> I can download to the EVM but not to my project
> board.
> Something changed because I used to be able to do
> both.
>
> Please point me to what levels, waveforms to look
> for in
> troubleshooting.
>
> Thanks in advance!
__________________________________
Yahoo! Mail
Stay connected, organized, and protected. Take the tour:
http://tour.mail.yahoo.com/mailtour.html
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Re: JTAG "Cannot connect to Board" - RameshBabu Kaluva - Jul 4 3:16:00 2005
check for VCC, GND and any flaky contacts on JTAG header of your project board & its
internal connectivity . Problem looks more towards your project board.
Charlie W <charliewtx@char...> wrote:
Did you try to disable the EVM on board JTAG converter
and use on board JTAG header and Wiggler to download
code to EVM? If it works, it means Wiggler is
functional. We have seen such similar problem. What we
did is to add termination or booster on transmission
line. You can try to either use longer parallel cable
(connect two cables together) or short parallel cable.
By the way, check your /reset and /TRST whether they
correctly connected to Wiggler.
Charlie W
--- yurubutugralb <jim.marvel@jim....> wrote:
> Hello all,
> Using CodeWarrior™ Development Studio for Motorola
> DSP56800
> version 5.1
> targeting the DSP56F805 chip and using Macraigor
> Wiggler for JTAG.
>
> I can download to the EVM but not to my project
> board.
> Something changed because I used to be able to do
> both.
>
> Please point me to what levels, waveforms to look
> for in
> troubleshooting.
>
> Thanks in advance!
__________________________________
Yahoo! Mail
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http://tour.mail.yahoo.com/mailtour.html NEW! You can now post a message or access and search the archives of this group on DSPRelated.com:
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Charlie W <charliewtx@char...> wrote:
Did you try to disable the EVM on board JTAG converter
and use on board JTAG header and Wiggler to download
code to EVM? If it works, it means Wiggler is
functional. We have seen such similar problem. What we
did is to add termination or booster on transmission
line. You can try to either use longer parallel cable
(connect two cables together) or short parallel cable.
By the way, check your /reset and /TRST whether they
correctly connected to Wiggler.
Charlie W
--- yurubutugralb <jim.marvel@jim....> wrote:
> Hello all,
> Using CodeWarrior™ Development Studio for Motorola
> DSP56800
> version 5.1
> targeting the DSP56F805 chip and using Macraigor
> Wiggler for JTAG.
>
> I can download to the EVM but not to my project
> board.
> Something changed because I used to be able to do
> both.
>
> Please point me to what levels, waveforms to look
> for in
> troubleshooting.
>
> Thanks in advance!
__________________________________
Yahoo! Mail
Stay connected, organized, and protected. Take the tour:
http://tour.mail.yahoo.com/mailtour.html NEW! You can now post a message or access and search the archives of this group on DSPRelated.com:
http://www.dsprelated.com/groups/motoroladsp/1.php
_____________________________________
/groups/motoroladsp/1.php
To Post: Send an email to motoroladsp@moto...
Other DSP Related Groups: http://www.dsprelated.com/groups.php
(You need to be a member of motoroladsp -- send a blank email to motoroladsp-subscribe@yahoogroups.com )