xTAG-3 TCK clock frequency

Technical questions regarding the xTIMEcomposer, xSOFTip Explorer and Programming with XMOS.
CousinItt
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Joined: Wed May 31, 2017 6:55 pm

xTAG-3 TCK clock frequency

Postby CousinItt » Thu Jan 11, 2018 4:33 pm

Hi All,

in xTIMEcomposer, the RunConfigurations dialogue allows us to slow down the JTAG TCK frequency for xrun as follows:

Image

On re-entry to the RunConfigurations dialogue the xTAG initiates some JTAG activity using the default maximum clock speed - I assume it's scanning for attached devices. Shouldn't this also have a speed limit? I would have thought that if you have a system that can't keep up with the default TCK frequency, then that's going to be the case for all JTAG traffic.

I'm using xTIMEcomposer 14.3.2 Community edition and Windows 7 64-bit.

Thanks.

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