AN1931D Freescale Semiconductor / Motorola, AN1931D Datasheet - Page 32

• Manufacturer Part Number: AN1931D
• Description: 3-Phase PM Synchronous Motor Vector Control
• Manufacturer: Freescale Semiconductor / Motorola

Software Design
32
The Switch process is split into Switch Filter Processing, called from Quadrature Timer D0 Interrupt
(see
manual switch control, and Switch Get State PC master software (in PC master application operating
mode).
Figure
6-3); and Switch Get State, called from Application Control processing, which handles
Figure 6-1. Software Flow Chart - General Overview I
Brake Control - Processing:
if u_dc_bus_filt > U_DCB_ON_BRAKE_SYSU
if u_dc_bus_filt < U_DCB_OFF_BRAKE_SYSU
{Brake On}
{Brake Off}
Fault Control - Background:
if faultCtrlStatus - AnalogFaultEnbl
if Position sensing,Overvoltage,
Overcurrent faults
Application Control - Processing:
according to appOpMode:
according to appState:
Freescale Semiconductor, Inc.
3-Phase PM Synchronous Motor Vector Control
{check Undervoltage, Overheating
{set
{control/check switch
{trigger
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faults}
trigger beginning of Fault State}
set omega_required_mech}
set PMSM Control Run/Stop
set Fault Control status
set Brake Control Run/Stop
set LED Indication}
appFaultStatus
appState
DSP Initialization
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Reset
Run/Stop/Init/
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