SPRACK2A September   2019  – March 2020 TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1 , TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1

 

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3.3 Control Module Changes

There are changes in the control modules between the F28004x and F28002x devices. The biggest change comes from the EPWM on the F28002x device which has a new generic and simple sync scheme that allows any EPWM/ECAP to be the master sync source for another EPWM/ECAP. Table 3 shows the module instances differences which should be considered when migrating applications between F28004x and F28002x.

Table 3. Control Module Differences

Module Category F28004x F28002x Note
SDFM Number 4 - SD1_C1..C4 -
eQEP Number 2 - EQEP1, EQEP2 2 - EQEP1, EQEP2
Registers - QEPSRCSEL Select source as either device pins or cmpss/epwmxbar
Other Support for SinCos Transducers
eCAP Number 7 - ECAP1..7 3 - ECAP1..3
Registers - ECAPSYNCINSEL Select sync source for ecap
HRCAP Number 2 - HRCAP6, HRCAP7 1 - HRCAP3
ePWM Number 8 - EPWM1..8 7 - EPWM1..7
Registers - TBCTL3.OSSFRCEN F28002x can now generate an EPWMxSYNCO with GLDCTL2[OSHTLD]
SYNCSEL EPWMSYNCINSEL EPWMxSYNCI to EPWMxSYNCO path removed from F28002x
TBCTL.SYNCOSEL EPWMSYNCOUTEN DCAEVT1 and DCBEVT1 are new sync options for F28002x
TBCTL2.SYNCOSELX
HRPWM Number 8 - HRPWM1..8 4 - HRPWM1..4
Clock Source EPWM1CLK Respective EPWM