ATA6844-DK Atmel, ATA6844-DK Datasheet - Page 24

• Manufacturer Part Number: ATA6844-DK
• Description: Power Management IC Development Tools BLDC Motor Drvr Brd
• Manufacturer: Atmel
• Type: Motor / Motion Controllers & Driversr

Specifications of ATA6844-DK

• Rohs: yes
• Product: Development Kits
• Tool Is For Evaluation Of: ATA6844, ATmega32M1, ATmega32U2
• Input Voltage: 3.3 V, 5 V, 12 V
• Description/function: Atmel ATA6844-DK BLDC Motor Control Kit
• Interface Type: LIN, UART, USB
• Factory Pack Quantity: 1

9.4.5
9.4.6
24
Atmel ATA6843/ATA6844
MC_PRELOCKED3:
MC_LOCKED:
The software is implemented in C language and the source code can be compiled with the
Compilers from IAR Systems as well as from GCC for AVR.
• The MC_PRELOCKED3 mode ensures the transfer from the uncontrolled
• In this mode, the state machine waits until the next constrained commutation occurs.
• The PWM duty-cycle is automatically generated by the PI controller.
• The delay commutation times are calculated based on the AC data pipeline.
• An emergency commutation step is forced if an AC ISR is missing within a specific time
• If multiple AC ISRs are missing in succession, the state machine automatically reverts to
MC_PRELOCKED2 mode to the fully controlled MC_LOCKED mode.
Afterwards, switching into the MC_LOCKED mode is initiated.
frame.
the MC_UNLOCKED mode.
9236A–AUTO–08/11