Hi Laurant,

> Great job.

Far from done though.  I mainly get zeroes at the moment,
because my chip continues to run.  I'm still looking for the
right incantation to make it stop.

> This is true for some specific processors. But wrong for CPLD , FPGA, 
> ...., and some ARM having methods to select Boundary Scan or internal 
> Debug via external pin setup ...

Thanks, I made a change.  Note however, the docs are as premature as
the code.

> If you want to indirect Flash a memory over JTAG Boundary Scan from a 
> FPGA, you only need TCK TMS TDI TDO  JTAG Signals:-) !

If you have a general recipe, I'm interested.  But if it differs
between FPGA types/brands I won't add it in this code.

I'm not even sure at this point if the principle I'm aiming at can
actually be made to work in general -- this is my first JTAG project.


Thanks,
 -Rick
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