Re: [OpenOCD-devel] flyswatter2 vs artix 7

[Paul F. <fer...@gm...>]

Hi Enrico,

On Thu, Oct 26, 2017 at 06:35:31PM +0200, Enrico Weigelt, metux IT consult wrote:
> I'd like to program a new bitfile to an artix-7 (xc7a50t) via
> openocd + flyswatter2, but having trouble connecting to it:
...
> Error: JTAG scan chain interrogation failed: all ones
> Error: Check JTAG interface, timings, target power, etc.
...
> Do I need some additional configuration ?

Are you sure the connection, pinout, target power, etc etc is ok? Do
you have TRST connected, if yes, then you should tell OpenOCD you have
it (reset_config trst_only).

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