CAP1xxx Evaluation Board User’s Guide
2013 Microchip Technology Inc.
DS50002221A-page 43
8 Troubleshooting
8.1 GUI Controls Unresponsive After Installation
Restart the computer. In some cases, a restart is required after installation.
8.2 Restore Defaults
To restore defaults, press the F6 key on the keyboard or click the Defaults button (see
). Alternatively, unplug the USB mini connector from the CAP1xxx evaluation board,
then plug it in again.
8.3 Control Panels Freeze
If the control panels freeze for unknown reasons, communications cannot be stopped, and the program
cannot be closed, disconnect the USB cable from the CAP1xxx evaluation board, then close the
program. Reconnect the evaluation board, then restart the CAP1xxx GUI.
8.4 Values in GUI Control Panels Don’t Match Registers
It’s possible that the GUI control panels can get out of sync with the actual register values when
disconnecting and reconnecting the CAP1xxx evaluation board. If this occurs, click the Update All
Registers button (see
Section 4.5.4, "Update All Registers"
8.5 Communications Fail
If the device fails to communicate through the
I2C bus
, ensure the correct
I2C
address is displayed
on the Communications Status and Control Panel. The CAP11xx evaluation board has a 0 ohm resistor
connected between VDD and the ADDR_COM pin, and the CAP12xx devices have a static address
that can only be changed at the Microchip Test Facility. So the
I2C
address should be 28 (50)
(0101_000r/w). If an external board has been connected to the evaluation board's 8-pin
communications header, a new address may need to be selected. If communications were stopped
when the evaluation board was disconnected, click the Run button (see
