Re: [OpenOCD-user] Error: JTAG scan chain interrogation failed: all zeroes

[Andreas F. <and...@gm...>]

On Fri, Jun 28, 2019 at 7:16 AM ravi kiran <rav...@gm...> wrote:

> No, it doesn't.
> Actually it is telling that interface is required to debug
> --terminal log after executing ->openocd -f
> board/atmel_saml21_xplained_pro.cfg
>
> root@yash01-desktop:/home/yash01/Videos/code/tcl# openocd -f
> board/atmel_saml21_xplained_pro.cfg
> Open On-Chip Debugger 0.10.0+dev-00735-g56568b7-dirty (2019-06-10-18:27)
> Licensed under GNU GPL v2
> For bug reports, read
> http://openocd.org/doc/doxygen/bugs.html
> Error: The specified debug interface was not found (cmsis-dap)
>
>
Ok, that because you have built OpenOCD without support for cmsis-dap
interfaces. Probably because you didn't have the necessary libraries when
you built it. If you want to go that route, install libhidapi-dev using you
package manager, re-run configure with the --enable-cmsis-dap flag and
rebuild.

/Andreas