UM0324 datasheet(76/105 Pages) STMICROELECTRONICS

76 / 105 page

Library functions

UM0324

76/105

4.7

Tachogenerator feedback processing: 75x_tacho.c module

4.7.1

List of available functions and interrupt service routines

The following is a list of available functions as listed in the 75x_ encoder .h header file:

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TAC_TachoTimerInit on page 76

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TAC_InitTachoMeasure on page 77

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TAC_GetRotorFreqInHz on page 77

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TAC_GetRotorFreq on page 78

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GetLastTachoPeriod on page 78

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GetAvrgTachoPeriod on page 78

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TAC_IsTimedOut on page 79

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TAC_ClrTimeOut on page 79

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TAC_GetCaptCounter on page 79

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TAC_ClrCaptCounter on page 80

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TAC_StartTachoFiltering on page 80

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TAC_ValidSpeedInfo on page 80

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TIMx_IC12_IRQHandler on page 81

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TIMx_UP_IRQHandler on page 81

TAC_TachoTimerInit

Synopsis

void TAC_TachoTimerInit(void)

Description

The purpose of this function is to initialize the timer that will perform the

tacho signal period measurement (the timer can be chosen in the

75x_tacho_prm.h file). The peripheral clock and the capture interrupt

are enabled, and the timer is initialized in “clear on capture” mode.

Functions called

MRCC_PeripheralClockConfig

EIC_IRQInit

TIM_DeInit, TIM_StructInit, TIM_Init, TIM_ClearFlag, TIM_ITConfig,

TIM_ResetCounter, Tim_Cmd

Note

The timer starts counting at the end of the routine.

UM0324 Datasheet(PDF) 76 Page - STMicroelectronics

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