AVR496 : Atmel BLDC control on ATAVRMC301 with ATtiny861 Documentation

License

Use of this program is subject to Atmel's End User License Agreement.

Please read file LICENSE.TXT for copyright notice.

Description

This application drives a BLDC motor with trapezoidal waveforms
The motor runs in the sensor mode
It runs on an ATAVRMC301 board with an ATTiny861 part
The main source files are :

main.c main loop
mc_control.c PI regulation
mc_drv.c hardware level of motor control

mc_interface.c interface routines to motor control

ushell_task.c command interpreter from an ascii chain
ascii.c ascii to binary conversion

All parameters are given for the motor included in the kit with no load.
They must be ajusted according to the application (motor, load ...)
The ramp-up sequence must be adjusted to the motor and load

Main Peripheral Use

Timer 0 is used for speed measurement and main tick generation
Timer 1 is used to generate PWM
ADC is used for current and potentiometer measurement

User Manual

At power on, the motor starts running
The reference speed is ajusted with the potentiometer connected to the ATTiny861 Isrc Input
One can control the motor through Uart Interface :

List of Material

ATAVRMC301 (ATTiny861 clock is 16MHz from PLL)
ATAVRMC300 (Power Board)

Hardware Configuration

Set the ATAVRMC300 jumpers as described in the AVR194 App Note
Set the ATAVRMC301 jumpers as described in the AVR194 App Note