Hi experts,
When HRPWM is enable, CMPAHR has a range (1-255) like below in TRM
(https://dev.ti.com/tirex/explore/node?node=AM0GA77BJ5qUFa.JunSyDg__gYkahfz__LATEST)
For example, PWM period(N PWM clock cycle)
ePWM clock 200MHz(=5nsec), in up and down count mode.
Carrier frequency 100kHz, ->10usec -> PRD=(10000/2)/5=1000
TBPRDHR=0
If duty = 50%, what count values should we set on CMPA and CMPAHR ?
(In this question, I ignore dead band time because I would like to focus on this topic)
Although if "CMPAHR = 0" can work correctly, we will do so and CMPA=500.
In my opinion, there are two options.
a) CMPA=499, CMPAHR=255
b) CMPA=500, CMPAHR=1
Could you please let us know how we should set values on CMPAHR to control duty more exactly ?
Best regards,
Hidehiko
