Re: [Openocd-development] STM32 "reset halt" appears broken

[Magnus L. <lu...@ml...>]

Øyvind Harboe wrote:
>> resetting first
>> the jtag, and this rsets my target also, and then a little later
>> resetting the Cortex core giving two rests in quick succeion. It works
>> but I dont like it. For my old LM2S811 reset does not work well, but I
>> have not had time to really dig in to this, just noticed the dual rsets
>> and used the onboard reset button, works great all the time :) .
>>     
>
> Perhaps the target script or cortex should override the default
> ocd_process_reset script.... i.e. by default resetting the entire
> chain was considered a clever idea, but for cortex, it might not
> be such a great thing...
>
>   
I dont think it is a Cortex issue, but as I understand it every reset 
does the following

first calls  jtag_reset_init,
generating  a sequence of trst/srst on the jtag interface
and then revalidating the scanchain, a VERY good idea.

But then the target reset code is called,  sending the same, almost, 
sequence of trst/srst
and not revalidating the scanchain.

Am I missing something ?

Regards,
Magnus