ATA6834-DK Atmel, ATA6834-DK Datasheet - Page 14

• Manufacturer Part Number: ATA6834-DK
• Description: BOARD BLDC MOTOR CTRL ATA6833/34
• Manufacturer: Atmel
• Type: MOSFET & Power Driverr

Specifications of ATA6834-DK

• Main Purpose: Power Management, Motor Control
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ATA6833 / ATA6834, ATmega32M1
• Primary Attributes: 3-Ph BLDC, IC with FET Driver, LIN Transceiver, Volt Regulator, Watchdog
• Secondary Attributes: LCD with Touch Screen on MCU Controller Board
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.1.2
8.1.3
8.1.4
14
BLDC Motor Control Kit with ATA6833/ATA6834
Touch-screen Calibration
Motor Control Demonstration
Functional Description of the Touch Buttons
Figure 8-1.
In order to improve touch recognition, a calibration routine is implemented. As long as the
touchscreen is not calibrated, the calibration routine will be executed after each start-up. The
touch-screen calibration requires a minimum of one touch event on each corner and has a
plausibility check. The calibration procedure is repeated until the plausibility check is success-
full. Default values will be used if the calibration is skipped.
Note:
Figure 8-2.
Start/Stop Motor:
Increase Rotation Speed:
Decrease Rotation Speed:
Direction:
Control Mode:
Ramp Mode:
• Motor starts and accelerates the rotation up to the target speed.
• Increases the rotation by 50 rpm (round per minutes).
• Decreases the rotation speed by 50 rpm.
• Switches between clockwise and counterclockwise direction.
• Switches between three different modes of the half-bridges control.
• Enables ramp mode. The rotation speed is automatically increased up to 7000 rpm and
Note, this button can only be used when the motor is stopped.
then decreased down to 300 rpm. This function repeats until the ramp mode is disabled.
Touch-screen calibration is done in factory and is only required if the microcontroller is repro-
grammed or the EEPROM is erased.
Start-up Sequence
Motor Control Demonstration
9143C–AUTO–03/10