Up-Count, Pulse Placement Asymmetric Waveform With Independent Modulation On Epwmxa - Texas Instruments AM1808 Technical Reference Manual

www.ti.com
Table 16-17 and Table 16-18
Figure 16-24. Use the code in
Figure 16-24. Up-Count, Pulse Placement Asymmetric Waveform With Independent Modulation on
TBCNT
TBPRD
(value)
EPWMxA
Z
T
EPWMxB
(1) PWM frequency = 1/( (TBPRD + 1 ) × T
(2) Pulse can be placed anywhere within the PWM cycle (0000h - TBPRD)
(3) High time duty proportional to (CMPB - CMPA)
(4) EPWMxB can be used to generate a 50% duty square wave with frequency = 1/2 × ((TBPRD + 1) × TBCLK)
SPRUH82C – April 2013 – Revised September 2016
Submit Documentation Feedback
contains initialization and runtime register configurations for the waveforms
Example 16-1 to define the headers.
EPWMxA
CA CB
)
TBCLK
Enhanced High-Resolution Pulse-Width Modulator (eHRPWM)
Copyright © 2013–2016, Texas Instruments Incorporated
CA
Z
T
Architecture
CB
Z
T
495