Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

PSoC™ 5, 3 & 1 Forum Discussions

stfrc_907376
Level 1
Level 1

Trying to capture a precise frequency count using an accurate hardware enable signal.  But the captured count is very unstable even with very accurate and stable inputs.  Is it possible to do this?

0 Likes
2 Replies
NoriakiT_91
Employee
Employee
100 likes received 50 likes received 25 likes received

I have created a frequency counter on the PSoC 3 evaluation kit.  Please refer following github repository.

GitHub - noritan/Design275: Frequency counter revised - "CY8C3866AXI-040" on "CY8CKIT-030"

This project was developed on PSoC Creator 3.3 SP 2.3  So many components must be updated.

Following is a BLOG entry describing the project written in Japanese.  Please refer this page too.

PSoC 3 で作る周波数カウンタ:新適当マイコン電子工作研究所:So-net blog

Regards,

Noriaki

0 Likes
Ekta
Moderator
Moderator
Moderator
250 solutions authored 100 likes received 250 sign-ins

Hello Steve,

Please have a look at the following document: Frequency measurement using Counter in PSoC 3 / PSoC 5

https://www.cypress.com/file/144696/download

The above project is used for measuring frequency of square wave. When the input is of some other waveform that does not have a rising edge (for example, sine wave or ramp), you must convert the input wave to square wave before giving it to the counter. The other waveforms can be converted to square wave using a comparator.

Also if possible can you please share your project.

Best Regards

Ekta

0 Likes