ATA6844-DK Datasheet ATA6844-DK | P1-P3

9233D-AUTO-02/15

Kit Contents

● 1 BLDC motor application board Atmel

ATA6844-DK

● 1 Atmel controller board ATA6844-DK3 with Atmel BLDC microcontroller

ATmega32M1 and Atmel USB microcontroller ATmega32U2

● 1 brushless DC motor ref: FL42BLS01-001 (3 phases, 8 poles, 12VDC)

● “Getting Started” Application Note

Prepare Connections

Before starting, the following preparations need to be done:

1. Connect the motor application board X4 to the controller board X101.

2. Connect the motor according to Table 1 on page 2. For the given example, only

the 3-phase wire (3 thick wires on pins 1 to 3) are needed, the other wires (5 thin

wires on pins 4 to 8) do not need to be connected.

3. Check all jumpers: Set WDD (default), VMODE to 5V (default), SCREF to micro-

controller (default), set RESET (default) and UART mode to LIN.

In case of no USB connection, the jumpers at USB-UART bridge and J105 are not relevant,

the USB connector J104 is not necessary.

For USB operation, please refer to the “Atmel ATA6844-DK BLDC Motor Control Kit” Appli-

cation Note (http://www.atmel.com/Images/doc9236.pdf).

APPLICATION NOTE

Getting Started with the Atmel ATA6844-DK BLDC Motor

Control Kit

ATA6844-DK GETTING STARTED

ATA6844-DK Getting Started [APPLICATION NOTE]

9233D–AUTO–02/15

Figure 1. Atmel ATA6844-DK

Table 1. BLDC Motor Connections to Screwless Row Connector X5

Pin Number

Signal Names on PCB

Bottom Function Motor Wire Remark Direction

1 Ph_A Motor phase A Yellow Thick wire Output

2 Ph_B Motor phase B Red Thick wire Output

3 Ph_C Motor phase C Black Thick wire Output

4 5V Power 5V Red Thin wire

(1)

Output

5 HALL_A Hall A Blue Thin wire

(1)

Input

6 HALL_B Hall B Green Thin wire

(1)

Input

7 HALL_C Hall C White Thin wire

(1)

Input

8 GND Power GND Black Thin wire

(1)

Output

Note: 1. Optional, not necessary for B-EMF feedback

Motor Application Board

Controller Board

X101

BLDC Motor X5

Power Supply X1

USB connector

J104

ATA6844-DK Getting Started [APPLICATION NOTE]

9233D–AUTO–02/15

1. Operating

1.1 Software

The Atmel

ATmega32M1 is preloaded with a demo software that supports BLDC motor control with Back EMF (B-EMF)

feedback. Since the B-EMF values measured by this software depend on the motor type, the software only runs with the

motor included in the kit. To operate with other motor types than the one enclosed, the start parameters need to be

calculated by means of the evaluation software.

1.2 Startup Procedure

To start the system, provide 12V to the power supply connector X1. The motor starts 5 seconds after powering the kit. First,

the motor performs forced start-up. After a few milliseconds, the motor switches to locked loop mode. The target speed of

the loop is defined by the potentiometer speed.

2. Revision History

Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this

document.

Revision No. History

9233D-AUTO-02/15 Put document in the latest template

9233C-AUTO-06/12 Section “Prepare Connections” on page 1 updated

9233B-AUTO-08/11

ATA6844-DK1 in ATA6844-DK renamed

Figure 2-1 “Atmel ATA6844-DK” on page 2 updated

P1-P3 P4-P4

ATA6844-DK

Mfr. #:

Buy ATA6844-DK

Manufacturer:

Microchip Technology / Atmel

Description:

Power Management IC Development Tools BLDC Motor Drvr Brd

Lifecycle:

New from this manufacturer.

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ATA6844-DK