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Enhanced Capture (eCAP) Module
Table 15-105. ECAP1 Initialization for Multichannel PWM Generation with Phase Control
Register Bit Value
CAP1 CAP1 1200
CTRPHS CTRPHS 0
ECCTL2 CAP_APWM EC_APWM_MODE
ECCTL2 APWMPOL EC_ACTV_HI
ECCTL2 SYNCI_EN EC_DISABLE
ECCTL2 SYNCO_SEL EC_CTR_PRD
ECCTL2 TSCTRSTOP EC_RUN
Table 15-106. ECAP2 Initialization for Multichannel PWM Generation with Phase Control
Register Bit Value
CAP1 CAP1 1200
CTRPHS CTRPHS 800
ECCTL2 CAP_APWM EC_APWM_MODE
ECCTL2 APWMPOL EC_ACTV_HI
ECCTL2 SYNCI_EN EC_ENABLE
ECCTL2 SYNCO_SEL EC_SYNCI
ECCTL2 TSCTRSTOP EC_RUN
Table 15-107. ECAP3 Initialization for Multichannel PWM Generation with Phase Control
Register Bit Value
CAP1 CAP1 1200
CTRPHS CTRPHS 400
ECCTL2 CAP_APWM EC_APWM_MODE
ECCTL2 APWMPOL EC_ACTV_HI
ECCTL2 SYNCI_EN EC_ENABLE
ECCTL2 SYNCO_SEL EC_SYNCO_DIS
ECCTL2 TSCTRSTOP EC_RUN
Example 15-15. Code Snippet for Multichannel PWM Generation with Phase Control
// Code snippet for APWM mode Example 3
// Run Time (Note: Example execution of one run-time instant)
//============================================================
// All phases are set to the same duty cycle
ECAP1Regs.CAP2 = 700; // Set Duty cycle i.e. compare value = 700
ECAP2Regs.CAP2 = 700; // Set Duty cycle i.e. compare value = 700
ECAP3Regs.CAP2 = 700; // Set Duty cycle i.e. compare value = 700
1633
SPRUH73H–October 2011–Revised April 2013 Pulse-Width Modulation Subsystem (PWMSS)
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