AN1911 Freescale Semiconductor / Motorola, AN1911 Datasheet - Page 21

• Manufacturer Part Number: AN1911
• Description: 3-Phase AC Motor Control with V/Hz Speed Open Loop Using DSP56F80X
• Manufacturer: Freescale Semiconductor / Motorola

6.2.5 PWM Fault A ISR
6.2.6 ADC Conversion Complete ISR
6.2.7 ADC High Limit ISR
6.2.8 ADC Low Limit ISR
6.2.9 Timer OC LED ISR
6.2.10 Timer OC Ramp ISR
This
DC_Bus_OverCurrent according to fault input pin level in case of over voltage or over current in
DC-Bus line.
Name of callback function in code: pwm_Fault_A_ISR(void)
This subroutine is called at PWM A (or PWM in case of DSP56F803) Fault Interrupt.
The following analog inputs are read:
Also the detection of faults caused by Over heating and Under voltage is performed in this subroutine.
Name of callback function in code: ADC_Callback_ISR
This subroutine is called at ADC conversion completion.
This subroutine turns on the resistive brake in DC Bus link when actual voltage in DC-Bus u_dc_bus is
higher than BRAKE_HIGH_LIMIT.
Name of callback function in code: ADC_High_Limit_CallBack_ISR.
This subroutine turns off the resistive brake in DC Bus link when actual voltage in DC-Bus u_dc_bus
is lower than BRAKE_LOW_LIMIT.
Name of callback function in code: ADC_Low_Limit_CallBack_ISR.
This subroutine performs the LED flashing according the state of application
Name of callback function in code: LedISR (void).
Access frequency is defined by constant TMR_1_PERIOD in definition section of program.
This subroutine performes the calculation of Speed Ramp.
Name of callback function in code: RampISR (void).
Access frequency is defined by constant TMR_2_PERIOD in definition section of program.
•
•
•
disables
DC Bus Voltage
DC Bus Current
Temperature of Power Stage Module
the
Indirect Power Factor Correction Using DSP56F80X
PWM
Freescale Semiconductor, Inc.
For More Information On This Product,
module
Go to: www.freescale.com
and
sets
DriveFaultStatus|=DC_Bus_OverVoltage
Software Design
21
or