About a pullup resistance value of JTAG_RESET_B of i.MX25

[yuuki]

Dear all,

We release a product using i.MX25.
It is necessary for us to change the resistance parameter of the JTAG interface.

We pullup the RESET_B signal with 10K ohm according to the Schematic:SPF-23252.

We want to change this register value to less than 1K ohm.

Would you tell me the minimum value of this register?
(Would you tell me about the other registers value?)

May I have advice?

Best Regards,
Yuuki

[igorpadykov · Accepted solution]

Hi Yuuki

JTAG_RESET_B is connected to cpu board SPF-26325 RESET_B (pin T18) ,

this resistance can be decreased and its value is limited

by jtag debugger port capability (please check its datasheet), not by i.MX25.

Best regards

igor

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