Atmel MC320 Manuel utilisateur

AVR471: MC320 Getting Started Guide

Kit Content

• 1 ATAVRMC300 Power stage board

• 1 ATAVRMC310 device board for ATmega32M1 AVR® microcontroller

• 1 Brushless DC motor

• 1 Mini-B to A USB cable

• 1 AVR DVD software and technical library

• 1 Dear customer letter

1 Overview

The MC320 kit is a complete hardware system which demonstrates motor control

using ATmega32M1 and features CAN and LIN connectivity.

The MC300 is a general-purpose power stage board able to drive brushless DC,

brushed DC and stepper motors. The board is designed to be a flexible platform for

developing motor control applications.

The MC310 is the device board for ATmega32M1 AVR® microcontroller. It connects

to the MC300.

The ATmega32M1 is the first AVR microcontroller of a new family dedicated to

advanced motor-control applications.

The MC320 board can be used to start development of applications which need to

drive motors in sensor or sensorless mode with accurate control of speed and

torque.

8-bit

Microcontrollers

Application Note

Rev. 8181A-AVR-11/08

2 AVR471 8181A-AVR-11/08

2 Connecting the boards

The two boards must be connected as shown in Figure 2-1.

Figure 2-1. Power up the kit

3 Connecting the BLDC motor

The motor must be connected as shown in the Figure 3-1.

Figure 3-1. Connecting the BLDC motor

AVR471

8181A-AVR-11/08

Table 3-1. Signals

J7 signals Motor wires

U Thick yellow

V Thick red

W Thick black

X Not connected

Vn Not connected

H1 Thin blue

H2 Thin green

H3 Thin white

VHa Thin red

GND Thin black

4 Powering the kit

The kit must be powered using J3 connector as shown Figure 3-1:

Figure 4-1. Powering the kit

Table 4-1. Signals

J3 signals Power wires

Vin Thick red (power)

GND Not Connected

GNDm Thick black (Ground)

Vm Thick red (power)

4 AVR471 8181A-AVR-11/08

Take care to connect Vin (Board supply) to Vm (Motor supply) together.

When powering using J5 jack connector, take care of the polarity as shown on the

silk-screen.

Electrical characteristics:

•Vin: 10 – 20VDC coming from the Power board

•Immin = 2A

5 Default jumpers configuration

The following jumpers must be configured as below:

•J5, J6, J8, J9 : 2-3 jumper closed

•J21, J23, J25 : 1-2 jumper closed (Vn motor filtered)

•J22, J24, J26 : 1-2 jumper closed (Hall sensors 1, 2, 3)

•J12, J13 : 7-8 jumper closed (RxUSB, TxUSB selected)

•J7 : open (RxCAN)

•J15 : open (CAN Res)

•J28 : 1-2 jumper closed (Vcc-UVcc)

6 Default demo

The MC320 kit is delivered already programmed with a sensor motor control demo.

The potentiometer is used to control the motor speed.

Using the USB cable included in the kit with the Atmel Motor Control Center PC

software, the user can drive the motor from the PC interface.

Note:

After connecting the USB cable between a PC & the MC320 kit, a new device

detection wizard will appear, point the wizard to the .inf file at90usbxxx_cdc.inf

available on the MC320 kit Atmel web page. Check that your device is enumerated as

a COM port (see picture below).Then you can use the USB interface of MC320 kit as

a Virtual COM Port.

AVR471

8181A-AVR-11/08

Figure 4-1. Device manager

Atmel Control Center is available for free on Atmel Web site:

http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4170

6 AVR471 8181A-AVR-11/08

Figure 4-2. Device manager

If the COM port number is not listed in the communication drop down menu, type it

explicitly in the window.

More detailed information can be found on MC300 & MC310 user’s guides:

AVR430: MC300 User’s guide

AVR470: MC310 User’s guide

8181A-AVR-11/08

Disclaimer

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Web Site

www.atmel.com

Technical Support

[email protected]

Sales Contact

www.atmel.com/contacts

Literature Request

www.atmel.com/literature

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ATAVRMC320

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