Definitely.  It's the edges that get you, not so much how often the edges
happen.
Termination will probably help, as will a very low impedance ground
connection, but shortening that cable is the best answer.



On Thu, Jul 11, 2013 at 12:40 PM, Joerg Wunsch <[email protected]> wrote:

> coxster dillon <[email protected]> wrote:
>
> > The shell switch -B does not seem to affect JTAG clock on the Dragon.
>
> It does, but a reduced clock speed is no guarantee that *any* type of
> cable would work.  The rule of thumb is that you can usually use an
> STK500 ribbon cable successfully (which is about 15 cm) but not much
> more, not even with slower clocking.
>
> You could try a serial termination (a resistor of about 100 ohm at the
> driving end of each line) if you really can't use a shorter
> connection.
> --
> cheers, Joerg               .-.-.   --... ...--   -.. .  DL8DTL
>
> http://www.sax.de/~joerg/
> Never trust an operating system you don't have sources for. ;-)
>
> _______________________________________________
> AVR-chat mailing list
> [email protected]
> https://lists.nongnu.org/mailman/listinfo/avr-chat
>
_______________________________________________
AVR-chat mailing list
[email protected]
https://lists.nongnu.org/mailman/listinfo/avr-chat

Reply via email to