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Forum: ARM programming with GCC/GNU tools H-JTAG Error: Can't halt target


H-JTAG Error: Can't halt target
von Amit C. (amit_c)

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Hi All,

Recently I build a wiggler clone with reference attached 
schematic(jtagwigglersch.jpg).

I using my own lpc2148 development kit, I tried to debug my board with 
H-JTAG.

It is really surprising for me that I'm able to detect the device(please 
see Connection.jpg) but while debugging the code I using the check 
option in H-Flasher to verify the connection. It is giving me error: 
Cant halt target and make it enter debug.

If anybody have faced this kind of problem share the solution for this.



Thanks,
Amit C

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Re: H-JTAG Error: Can't halt target
von mthomas (Guest)

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IRC the TRST-line is needed too for this controller - (S)RST might not 
be enough.

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Re: H-JTAG Error: Can't halt target
von Amit C. (amit_c)

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Thank you Martin,

I Connected a nTRST signal and its working perfectly.

Thanks,
Amit C

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Re: H-JTAG Error: Can't halt target
von amir (Guest)

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Hi amit c
i had that problem like you.could you share new programer's schematic?
tnx

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Re: H-JTAG Error: Can't halt target
von Amit C (Guest)

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Hello,

I don't have tool to draw a schematic, but I'll explain the changes.

1. Connect the 6th no pin of parallel port to 9 no pin of 74xx244.
2. Connect 11 no pin of 74xx244 to the 3rd no pin of jtag header.
3. And 18 no pin of 74xx244 to ground.

Thanks
Amit

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Re: H-JTAG Error: Can't halt target
von Deniz (Guest)

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How can i solve this problem i have

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Re: H-JTAG Error: Can't halt target
von s .vrao (Guest)

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hi frinds
i have a problem with above circuit when i am using this circuit for 
lpc1768 the h-jtag server was not connecting.it was showing the massage 
unable to load h-jtag lpt driver. only usb modem is supported.please 
help me ....

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Re: H-JTAG Error: Can't halt target
von Amit C. (amit_c)

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Hello s .vrao,

Hope you have selected lpt port for programming in settings.
Please confirm if not.

Thanks
Amit C

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Re: H-JTAG Error: Can't halt target
von Redus (Guest)

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Not 18 ... but 19

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Re: H-JTAG Error: Can't halt target
von Redus (Guest)

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Redus wrote:
> but

Not 18 but 19

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