E6248 Atmel, E6248 Datasheet - Page 14

• Manufacturer Part Number: E6248
• Description: BOARD EVAL QT60248-AS QMATRIX
• Manufacturer: Atmel
• Series: Quantum, QMatrix™r

Specifications of E6248

• Sensor Type: Touch, Capacitive
• Sensing Range: 16 / 24 Buttons/Keys
• Interface: SPI Serial
• Voltage - Supply: 3 V ~ 5 V
• Embedded: No
• Utilized Ic / Part: QT60168, QT60248
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Sensitivity: -
• Other names: 427-1087

14
Board Will
Not
Communicate
with PC
Noisy or
Erratic Signal
Bad SPI or USB Connections
Bad or Conflicting Virtual Comm Port on PC
Incorrect Settings on Option Switch
Noisy Power Supply - try a different USB port or PC
Cables or Board too Close to Strong Noise Source (such as a power line or
QMatrix™ Board is not Mechanically Stable
Strong RFI from a Transmitter or Adjacent Digital Product
TROUBLESHOOTER
switching noise source)
Check/replace cables, LEDs should display on connection
Make sure the board is getting power
See the Software Installation section - reinstall driver software, or,
Set OPT1 to the ‘On’ position
Increase the distance from E6248 to the noise source
Place a grounded metal shield between the noise source and the
Prevent board from moving around
Remove the noise source or shield against it
change the USB-Serial com port number in Device Manager if there
is a conflict
QMatrix™ board