Time Interval In STM32

T

titanif

New Member
I want to set the Timer/Counter of STM32 as such that it(timer) should START by the external trigger on one GPIO pin and should STOP by another GPIO pin of the STM32. After stop I want to have the value of counter OR the time elapsed from START pulse to STOP pulse. Basically I have two pulse signal and I want to measure the delay between them using only STM32.
Any help would be appreciated.
 
Sort by date Sort by votes
I'm not familiar with that specific device family, however it appears to have an "Input capture" facility.

You can leave the associated timer free-running at a suitable frequency, then configure two input capture units to the two input pins & the appropriate high or low going edges.

Wait until the second it triggered & subtract the value from the first capture reg, from the second one, to get the interval in timer units.

More info:

 
Upvote 0 Downvote
These materials may be useful to you.

trigger timer with external pulse...

Posted on September 22, 2017 at 23:14 hi i need start timer with external pulse at falling edge at one pin and i need stop timer with external pulse at falling edge at one pin can convert two 16 bit timer to one 32 bit timer ? on stm32f103c8t6 my timer clock is 72Mhz what can i do ...
community.st.com
 
Upvote 0 Downvote
You must log in or register to reply here.

Similar threads

S
  • Question
Where we can find counter Period (AutoReload Register) in stm32?
Replies
0
Views
1K
Saeedk9574
S
L
  • Question
DS3231 (Real time clock) datasheets
Replies
2
Views
2K
Nigel Goodwin
K
  • Question
Help with STM32G0
Replies
2
Views
948
rjenkinsgb
B
  • Question
Temperature controlled fan using PIC16F877a (in assembly language)
Replies
6
Views
1K
Dan Soze
D
K
  • Question
Role of OSI Model in IoT Projects
Replies
6
Views
3K
rjenkinsgb
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…