IMX8M JTAG Circuit

[leandroschmitz]

Hello, 

I having problems to debug M4 software on IMX8M, I follow the guide on Using JLink Debugger for M4 software on IMX8M but J-LINK Server Can't find any processor on JTAG.

I think witch the problem may be in my JTAG circuit, mainly the o use of a pull-down on JTAG_TCK.

Can you help me reviewing my JTAG circuit.

Thanks 

Regards 

[pantarun_92]

JTAG_TCK has internal 27K Pull up, why is a10K pull down required?

[igorpadykov]

Hi Leandro

i.MX8M EVK uses the same connection so seems there is no problem using it.

Schematics
Design Files for the i.MX 8M Evaluation Kit (EVK)(REV 0)

i.MX 8M Evaluation Kit | NXP 

Best regards
igor
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[sinanakman]

Hi Leandro

How is you JTAG_MOD connected ? Is it properly pulled down ?

Regards

Sinan Akman