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Chapter 1 Device Overview MC9S12ZVM-Family
MC9S12ZVM Family Reference Manual Rev. 1.3
68
Freescale Semiconductor
3. Check functionality of the external system
4. Initializes control loop operation, however with PMF and GDU outputs still in safe state
5. Read the ADC values to check the system
6. Start driving energy into the system
based on the measurements from the previous step, the PWM duty cycle values are calculated
7. PMF and GDU outputs are enabled (actively driven)
The device does not support putting the FETs in an active driving state during STOP as the GDU charge
pump clock is not running. This means the device cannot be put in stop mode if the FETS need to be in an
active driving state to protect the system from external energy supply (e.g. externally driven motor-
generator).
NOTE
It is imperative, that whatever the modules perform on entering/exiting Stop
mode, the pre-set complementary mode of operation and dead time insertion
must be guaranteed all the times.
1.13.3.11 Application Signal Visibility
In typical motor control applications, TIM OC0 is used internally to indicate commutation events. To
switch off OC0 visibility at port pin PT0:
•
Disable output compare signal on pin PT0 in TIM: OCPD[OCPD0]=0b1.
1.13.3.12 Debug Signal Visibility
Depending on required visibility of internal signals on port pins enable the following registers:
•
Set [PWMPRR]=0b1 in PIM if monitoring of internal PWM waveforms is needed. PWM5-3 are
driven out on pins PT[2:0] and PWM2-0 on pins PP[2:0].
•
Enable output compare channel OC0 to output commutation event on pin PT0 in TIM:
OCPD[OCPD0]=0b0.
•
Set PTUDEBUG[PTUREPE]=0b1 in PTU to output the reload event.
•
Set PTUDEBUG[PTUTxPE]=0b1 with x=0,1 in PTU to output the trigger events.
1.13.4
BDCM Complementary Mode Operation
This section describes BDCM control using center aligned complementary mode with deadtime insertion.
The DC Brushed motor power stage topology is a classical full bridge as shown in
. The DC
Brushed motor is driven by the DC voltage source. A rotational field is created by means of commutator
and brushes on the motor. These drives are still very popular because sophisticated calculations and
algorithms such as commutation, waveform generation, or space vector modulation are not required.
Содержание MC9S12ZVM series
Страница 116: ...Chapter 2 Port Integration Module S12ZVMPIMV1 MC9S12ZVM Family Reference Manual Rev 1 3 116 Freescale Semiconductor ...
Страница 242: ...Chapter 7 ECC Generation Module SRAM_ECCV1 MC9S12ZVM Family Reference Manual Rev 1 3 242 Freescale Semiconductor ...
Страница 384: ...Chapter 10 Supply Voltage Sensor BATSV3 MC9S12ZVM Family Reference Manual Rev 1 3 384 Freescale Semiconductor ...
Страница 484: ...Chapter 13 Programmable Trigger Unit PTUV2 MC9S12ZVM Family Reference Manual Rev 1 3 484 Freescale Semiconductor ...
Страница 662: ...Chapter 17 Gate Drive Unit GDUV4 MC9S12ZVM Family Reference Manual Rev 1 3 662 Freescale Semiconductor ...
Страница 684: ...Chapter 18 LIN Physical Layer S12LINPHYV2 MC9S12ZVM Family Reference Manual Rev 1 3 684 Freescale Semiconductor ...
Страница 740: ...Chapter 19 128 KB Flash Module S12ZFTMRZ128K512V2 MC9S12ZVM Family Reference Manual Rev 1 3 740 Freescale Semiconductor ...
Страница 756: ...Appendix A MCU Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 756 Freescale Semiconductor ...
Страница 772: ...Appendix D LINPHY Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 772 Freescale Semiconductor ...
Страница 776: ...Appendix E GDU Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 776 Freescale Semiconductor ...
Страница 788: ...Appendix I MSCAN Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 788 Freescale Semiconductor ...
Страница 790: ...Appendix J Package Information MC9S12ZVM Family Reference Manual Rev 1 3 790 Freescale Semiconductor ...