Texas Instruments TMS320C6745 DSP - Epwmx Initialization for; Epwmx Run Time Changes for

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SPRUH91D–March 2013–Revised September 2016
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Enhanced High-Resolution Pulse-Width Modulator (eHRPWM)
Table 14-13. EPWMx Initialization for Figure 14-22
Register Bit Value Comments
TBPRD TBPRD 600 (258h) Period = 601 TBCLK counts
TBPHS TBPHS 0 Clear Phase Register to 0
TBCNT TBCNT 0 Clear TB counter
TBCTL CTRMODE TB_UP
PHSEN TB_DISABLE Phase loading disabled
PRDLD TB_SHADOW
SYNCOSEL TB_SYNC_DISABLE
HSPCLKDIV TB_DIV1 TBCLK = SYSCLK
CLKDIV TB_DIV1
CMPA CMPA 350 (15Eh) Compare A = 350 TBCLK counts
CMPB CMPB 200 (C8h) Compare B = 200 TBCLK counts
CMPCTL SHDWAMODE CC_SHADOW
SHDWBMODE CC_SHADOW
LOADAMODE CC_CTR_ZERO Load on CTR = 0
LOADBMODE CC_CTR_ZERO Load on CTR = 0
AQCTLA ZRO AQ_SET
CAU AQ_CLEAR
AQCTLB ZRO AQ_SET
CBU AQ_CLEAR
Table 14-14. EPWMx Run Time Changes for Figure 14-22
Register Bit Value Comments
CMPA CMPA Duty1A Adjust duty for output EPWM1A
CMPB CMPB Duty1B Adjust duty for output EPWM1B