> On Feb 4, 2021, at 1:51 PM, Josh Dersch <dersc...@gmail.com> wrote:
> [RC maintenance clock] Yeah, you'd think... but it doesn't work :).  I 
> mentioned earlier in this thread that it's stuck in single-step mode.  From 
> the schematics it looks like the crystal clock needs to be running to clock 
> some of the flip flops used in the "Source Synchronizer" to select the proper 
> clock source.  My guess is that since the clock isn't running, the flip flops 
> are left in a weird state.

Oh, interesting!  Noted for future reference.  The TIG is not exactly 
straightforward...

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