How to connect JTAG pins in final PCB design?

are the JTAG input pins, [TDI, TMS, TCK] pull up resistors necessary for normal operation [not debugging] ?

designing a small board and removal of a few resistors would help layout and routing [using a ADuC7061...]

i would add the pull up resistors on to the JTAG cable.or separate board used when debugging.

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  • hello Mike

    thanks

    but 13K not 10K? - see R14 in Eval-ADuC7061MK.pdf

    for an ADuC7061... chip

    how should the unused pins be terminated?

    especially VREF+ and VREF-

    and other input pins

    also what is the limit of rewrites to flash

    i would like to keep a running timer and record total time running in flash

    updating it every 1 minutes or so, does not have to be too accurate

    can you clear up info regarding timers

    especially

    timer0 - reloads value from T0LD when overflow occurs

    timer1 and 2 - reloads from T1LD/T2LD when overflow occurs or T1CLRI/T2CLRI is written to

    timer 3 not sure when T3LD is loaded

    regards

    enzo

Reply
  • hello Mike

    thanks

    but 13K not 10K? - see R14 in Eval-ADuC7061MK.pdf

    for an ADuC7061... chip

    how should the unused pins be terminated?

    especially VREF+ and VREF-

    and other input pins

    also what is the limit of rewrites to flash

    i would like to keep a running timer and record total time running in flash

    updating it every 1 minutes or so, does not have to be too accurate

    can you clear up info regarding timers

    especially

    timer0 - reloads value from T0LD when overflow occurs

    timer1 and 2 - reloads from T1LD/T2LD when overflow occurs or T1CLRI/T2CLRI is written to

    timer 3 not sure when T3LD is loaded

    regards

    enzo

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