Chris Liechti wrote:
Georg Ritter wrote:

And if somebody has an idea how to prevent my (no datasheet availble for it) 32768hz crystal x1...@f149 from going down when the jtag cable is connected (yes I know capacities, but how to find out) please...


the old JTAG interfaces have a connection on Xout. it was used by the JTAG for old silicon, but you can cut that connection for all current chips.
Hi chris, I'm sorry I don't get the point totally. For a f149 I can just cut
the connection between jtag (pin6) and xout(msp pin9), it works without?

They don't say this in the appnotes, or did I miss something?

What is "old silicon" 8051 ;-)?

Thanks,

        Georg





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