Is SWD multidrop supported?

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Matt

• January 22, 2012 21:45

Hi all,

I probably haven't searched for the correct terms, I'm sure this must have been asked before, so pardon me if there is already a big thread on this. 

If I have a single circuit board with two different processors (LPC1768 and LPC1313) on it, can I (using Crossworks for Arm and the Cross Connect Lite with SWD adapater) route the same two SWD lines (SWCLK and SWDIO) to a SWD connector for the purpose of:

1) Loading code into either chip using a single SWD connector

2) Debugging either chip (not simultaenously)

It isn't clear to me from ARM's site about the CoreSight licensing and multidrop capability, not to mention if it is supported (or how it is supported) by a toolset.

Thanks,
Matt

 

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  Paul Curtis

  • January 24, 2012 11:03

  I'm not sure that we've ever seen a board with multi-drop.  And I'm pretty sure we have not written any code for it.

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