Texas Instruments TMS320C6745 DSP - Application of the APWM Mode; PWM Waveform Details of APWM Mode Operation

APRD
TSCTR
FFFFFFFF
ACMP
0000000C
APWMx
(o/p pin)
On
time
Off−time
Period
1000h
500h
300h
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SPRUH91D–March 2013–Revised September 2016
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Enhanced Capture (eCAP) Module
13.3.5 Application of the APWM Mode
13.3.5.1 Simple PWM Generation (Independent Channel/s) Example
In this example, the eCAP module is configured to operate as a PWM generator. Here a very simple
single channel PWM waveform is generated from output pin APWMn. The PWM polarity is active high,
which means that the compare value (CAP2 reg is now a compare register) represents the on-time (high
level) of the period. Alternatively, if the APWMPOL bit is configured for active low, then the compare value
represents the off-time.
Figure 13-14. PWM Waveform Details of APWM Mode Operation