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LS1012 custom board, JTAG speed too low

Question asked by Nattapong Sungcharoen on Nov 16, 2016
Latest reply on Nov 21, 2016 by Nattapong Sungcharoen

Hi 

 

I'm try to connect to our LS1012 custom board reference design from LS1012AFDM.

First , I tested Connection Diagnostics with JTAG speed 16000 by default it's not working and error at IR Scan step.

Then , I reduce JTAG clock speed to 800. At 800kHz I can pass all Connection Diagnostics step.

 

Do you have any suggestion why it worked at JTAG low speed.

 

Regards.

Nattapong

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