GNDDETECT

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GNDDETECT

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ramgopaldivakar
Contributor I

Hi!

Do I tie the GNDDETECT pin as ground or pull it up in my board with LS1021? CWH-CTP-CTX10-YE with CWH-CTP-BASE-HE base is the COP codewarrior tap we are going to be using.

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ufedor
NXP Employee
NXP Employee

The GND_DETECT is a signal for on-board logic indicating whether the TAP JTAG cable is connected or not.

When the TAP is connected the GND_DETECT is pulled to ground otherwise (as on the TWR-LS1021A) it is pulled to OVDD.