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 14-23. EPWMx Initialization for Figure 14-27
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_UPDOWN
PHSEN TB_DISABLE Phase loading disabled
PRDLD TB_SHADOW
SYNCOSEL TB_SYNC_DISABLE
HSPCLKDIV TB_DIV1 TBCLK = SYSCLK
CLKDIV TB_DIV1
CMPA CMPA 250 (FAh) Compare A = 250 TBCLK counts
CMPB CMPB 450 (1C2h) Compare B = 450 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 CAU AQ_SET
CBD AQ_CLEAR
AQCTLB ZRO AQ_CLEAR
PRD AQ_SET
Table 14-24. EPWMx Run Time Changes for Figure 14-27
Register Bit Value Comments
CMPA CMPA EdgePosA Adjust duty for output EPWM1A
CMPB CMPB EdgePosB