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

www.ti.com Architecture
321
SPRUH91D–March 2013–Revised September 2016
Submit Documentation Feedback
Copyright © 2013–2016, Texas Instruments Incorporated
Enhanced High-Resolution Pulse-Width Modulator (eHRPWM)
Table 14-21. EPWMx Initialization for Figure 14-26
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 350 (15Eh) Compare A = 350 TBCLK counts
CMPB CMPB 400 (190h) Compare B = 400 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
CAD AQ_CLEAR
AQCTLB CBU AQ_CLEAR
CBD AQ_SET
Table 14-22. EPWMx Run Time Changes for Figure 14-26
Register Bit Value Comments
CMPA CMPA Duty1A Adjust duty for output EPWM1A
CMPB CMPB Duty1B Adjust duty for output EPWM1B