Part Number: TMS320F28377S Hello, I'm implementing 3-Phase PMSM. Everything is already nice configured except the phase shift. There is absolute zero phase shift expected. Initialy I set the same PWM 50% for all ePWMs. With TBPHS == 0 for slave ePWMs I get 20ns delay (slave goes high later as master) what is already documented in TRM. With any value, e.g. TBPHS == 2 the slave goes high 40ns later. The bigger the TBPHS for slave the bigger is the phase shift. But I have to shift the slave in opposite direction. EPwm1Regs EPWM Registers TBCTL 0x0012 Time Base Control Register [Memory Mapped] FREE_SOFT 00 Emulation Mode Bits PHSDIR 0 Phase Direction Bit CLKDIV 000 Time Base Clock Pre-scaler HSPCLKDIV 000 High Speed TBCLK Pre-scaler SWFSYNC 0 Software Force Sync Pulse SYNCOSEL 01 Sync Output Select PRDLD 0 Active Period Load PHSEN 0 Phase Load Enable CTRMODE 10 Counter Mode TBPHS 0x00000000 Time Base Phase High [Memory Mapped] TBPHS 0000000000000000 Phase Offset Register TBPHSHR 0000000000000000 Extension Register for HRPWM Phase (8-bits) TBPRD 0x0C35 Time Base Period Register [Memory Mapped] TBPRD 3125 (Decimal) Time base period register CMPA 0x00000000 Counter Compare A Register [Memory Mapped] CMPB 0x061A0000 Compare B Register [Memory Mapped] CMPB 0000011000011010 Compare B Register CMPBHR 0000000000000000 Compare B High Resolution Bits EPwm2Regs EPWM Registers TBCTL 0x0006 Time Base Control Register [Memory Mapped] FREE_SOFT 00 Emulation Mode Bits PHSDIR 0 Phase Direction Bit CLKDIV 000 Time Base Clock Pre-scaler HSPCLKDIV 000 High Speed TBCLK Pre-scaler SWFSYNC 0 Software Force Sync Pulse SYNCOSEL 00 Sync Output Select PRDLD 0 Active Period Load PHSEN 1 Phase Load Enable CTRMODE 10 Counter Mode TBPHS 0x00020000 Time Base Phase High [Memory Mapped] TBPHS 0000000000000010 Phase Offset Register TBPHSHR 0000000000000000 Extension Register for HRPWM Phase (8-bits) TBPRD 0x0C35 Time Base Period Register [Memory Mapped] TBPRD 3125 (Decimal) Time base period register CMPA 0x0C2F0000 Counter Compare A Register [Memory Mapped] CMPB 0x061A0000 Compare B Register [Memory Mapped] CMPB 1562 (Decimal) Compare B Register CMPBHR 0000000000000000 Compare B High Resolution Bits
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