On Feb 3, 2014, at 12:14 AM, Jason Manley wrote:

> If you've updated from SKA-SA, you'll need to delete any existing X-engines 
> in your design and drag a new block in from the library and set your 
> parameters again.

This kind of deleting and re-drawing is why the "update_casper_blocks" function 
was created.  To update all the CASPER blocks in the current block diagram, run 
this command at the matlab command prompt:

update_casper_blocks(bdroot)

If you want to update just a single CASPER block, you can select that block and 
run this command at the matlab prompt:

update_casper_block(gcb)

Note that the first command is plural (ends with 's') and the second command is 
singular (does not end with 's').  The "bdroot" and "gcb" arguments are 
actually simulink commands that return the root of the current block diagram 
(bdroot == block diagram root) and the current block (gcb == get current 
block), respectively.

These auto-update commands generally work, but I have seen some strange cases 
where they fail.  Sometimes this is due to incompatible defaults for new 
parameters of the new blocks, but other times it is due to unexpected simulink 
behavior that I don't understand.  In any case, it's worth a try as the first 
pass.

One thing to be aware of is that sometimes (though rarely) a block's default 
latency might have changed so one needs to be sure to re-test their designs 
after updating.  This is true regardless of whether one updates the blocks 
manually or with one of the above functions.

Hope this helps,
Dave


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