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UM0324 Datasheet(PDF) 6 Page - STMicroelectronics

Part # UM0324
Description  This user manual describes
PDF  105 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0324 Datasheet(HTML) 6 Page - STMicroelectronics

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Contents
UM0324
6/105
4.7.2
Integration tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
4.7.3
Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
4.7.4
Converting Hertz into pseudo frequency . . . . . . . . . . . . . . . . . . . . . . . . 83
4.8
Flux, torque and speed regulators: MC_PID_regulators module . . . . 83
4.8.1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
4.8.2
List of available functions and interrupt service routines . . . . . . . . . . . . 83
PID_Init . . . . . . . . . . . . . . . . . . . . . . . . . 83
PID_Flux_Regulator . . . . . . . . . . . . . . . . . . . . 84
PID_Torque_Regulator . . . . . . . . . . . . . . . . . . . 84
PID_Speed_Regulator
. . . . . . . . . . . . . . . . . . . 85
PID_Reset_Integral_terms . . . . . . . . . . . . . . . . . 85
PID_Speed_Coefficients_update
. . . . . . . . . . . . . . 85
PID_Integral_Speed_update
. . . . . . . . . . . . . . . . 85
4.8.3
PID regulator theoretical background . . . . . . . . . . . . . . . . . . . . . . . . . . 86
4.8.4
Regulator sampling time setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
4.8.5
Adjusting speed regulation loop Ki, Kp and Kd vs motor frequency . . . 87
Disabling the linear curve computation routine, 75x_it.c module. . . . . . . . . . .88
4.9
Main interrupt service routines: 75x_it module . . . . . . . . . . . . . . . . . . 89
4.9.1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
4.9.2
List of non-empty interrupt service routines . . . . . . . . . . . . . . . . . . . . . . 89
PWM_EM_IRQHandler
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
ADC_IRQHandler
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
4.10
General purpose time base: 75x_TBtimer module . . . . . . . . . . . . . . . . 90
4.10.1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
4.10.2
List of available functions and interrupt service routines . . . . . . . . . . . . 90
TB_StartUpInit . . . . . . . . . . . . . . . . . . . . . . 91
TB_Timebase_Timer_Init
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
TB_Wait
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
TB_Set_Delay_500us
, TB_Set_DisplayDelay_500us,
TB_Set_StartUp_Timeout
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
TB_StartUp_Timeout_IsElapsed
, TB_Delay_IsElapsed,
TB_DisplayDelay_IsElapsed
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
TB_IRQHandler
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
4.11
Application layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
5
MISRA compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5.1
Analysis method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5.2
Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5.2.1
MISRA compliance for AC IM library files . . . . . . . . . . . . . . . . . . . . . . . 94



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