E1106 Datasheet, PDF (12/14 Pages) ATMEL Corporation – E1106 User Manual

E1106 User Manual
5 Troubleshooting
Problem
Software will not
communicate with the
computer
Software appears locked
Noisy or erratic signal
QMagic Prox feature will
not turn off
Potential Cause and Solution
` Bad SPI or USB connection
Check that the USB cables are connected properly
Check/replace cables
Ensure that the E1106 assembly is getting power and the LED is on
` See ¹ below
` Incorrect detection threshold
Change the detection threshold to a lower setting
` Noisy power supply
Try a different USB port or computer
` Cables or E1106 assembly too close to strong noise source<sup>1</sup>
(such as a power line or switching noise source)
Increase the distance between the E1106 assembly and the noise
source
Ensure that the grounded transparent backplate is in place on the
E1106 assembly
` E1106 assembly is not mechanically stable
Prevent E1106 assembly from moving around if the backplate is not
fitted
` Strong RFI from a transmitter or adjacent digital product
Remove the noise source or shield against it
` USB cable connected via a USB hub
Connect the USB cable directly to the computer
` Once activated it can only be deactivated by resetting the chip. This has
to be done by physically unplugging the device.
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