TC NPWM MODE (ATSAME51G19A)

Log in or register to post comments
Go To Last Post
3 posts / 0 new
Author
Message
Mr.Chen
Mr.Chen's picture
Level: New Member
Joined: Thu. Apr 7, 2022
Posts: 4 View posts
#1
Posted by Mr.Chen: Sat. May 14, 2022 - 06:33 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0


MCU : ATSAME51G49A

 

 

I want to output waveform with adjustable duty cycle using PA05 port

 

 

Below is my configuration

 

 

TC_GCLK is 120M

TC0 is configured as 32-bit, NPWM mode

But with the above configuration, PA05 has no output waveform.

 

 

If I use MPWM mode, by changing CC0 and CC1, the waveform can be output correctly, and it can also meet my requirements.
I'm just trying to figure out, why can't NPWM mode output a waveform?

 

 

 

 

 

 

 

 

 

 

 

This topic has a solution.

Tags:

Atmel SMART ARM-based MCUs and MPUs, Atmel Cortex-M MCUs, solved
Last Edited: Sat. May 14, 2022 - 09:42 AM
Top
Lajon
Lajon's picture
Level: Raving Lunatic
Joined: Fri. Mar 12, 2004
Posts: 2932 View posts
Location: Linköping, Sweden
This reply has been marked as the solution. 
Posted by Lajon: Sat. May 14, 2022 - 07:57 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

It will have a very long period, look at the table under "48.7.1.9 Waveform Generation Control" to get where the TOP value (which controls the period) comes from in the different modes.

/Lars

Top
Mr.Chen
Mr.Chen's picture
Level: New Member
Joined: Thu. Apr 7, 2022
Posts: 4 View posts
Posted by Mr.Chen: Sat. May 14, 2022 - 09:42 AM (Reply to #2)
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

thanks, i see

Top