ATA6844-DK Microchip

APPLICATION NOTE Getting Started with the Atmel ATA6844-DK BLDC Motor Control Kit ATA6844-DK GETTING STARTED 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 (Table 1. BLDC Motor Connections to Screwless Row Connector X5 Signal Names on PCB Pin Number 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 (1) 4 5V Power 5V Red Thin wire Output (1) 5 HALL A Hall A Blue Thin wire Input (1) 6 HALL B Hall B Green Thin wire Input (1) 7 HALL C Hall C White Thin wire Input (1) 8 GND Power GND Black Thin wire Output Note: 1. Optional, not necessary for B-EMF feedback Figure 1. Atmel ATA6844-DK Power Supply X1 BLDC Motor X5 Motor Application Board X4 USB connector J104 Controller Board X101 2 ATA6844-DK Getting Started APPLICATION NOTE 9233DAUTO02/15