Hi there community,

I have access to a couple of STM32F446RE Nucleo boards and wanted to get 
started with Nuttx. I was able to build the nucleo-f446re:nsh example code but 
I had a great deal of trouble running it because I was not able to gain access 
to the nsh shell. 

I say was, because I eventually did gain access. It turns out that I have two 
different kinds of nucleo boards but only one variant works. The main boards 
are all MB1136 Rev C (STM32F446RE), but the ST-Link attached to the boards is 
different. The ones that do not work say 1940 on the BACK of the ST-Link, where 
as the ones I can connect with say  IQE 1915 on the FRONT of the ST-Link. So it 
appears that the older revision of ST-Link works, where as the newer revision 
does not?

I am able to run the nsh example for now, but it would be good to know why the 
newer ST-Link doesn’t work, or even better, help to fix it. If anyone has 
suggestions please let me know.

Thanks in advance,
Russell Haley

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