help needed - Setup external crystal on 4200-L

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

cross mob
DaHu_285096
Level 5
Level 5
10 likes received 250 replies posted 100 replies posted

I want to use an external 24Mhz crystal for the main oscillator on 4246AZI-L423 (attached to pins P7.0 and P7.1).

What settings do I need in the clocks section to use this as master clock?

Also, I want to generate a 31.25 kHz output continuously (derived from the master clock), do I just drop down a clock component and set F = 31.25Khz and attach it to a digital output pin? (I need an accuract clock for external device)

Thanks

0 Likes
1 Solution
lock attach
Attachments are accessible only for community members.

I have changed the project configuration, I think it can meet your requirement now.

View solution in original post

3 Replies
lock attach
Attachments are accessible only for community members.
LinglingG_46
Moderator
Moderator
Moderator
500 solutions authored 1000 replies posted 10 questions asked

I create a simple project about the clock configuration.

Hope it can be helpful for you.

Thanks for the example. I note the accuracy for 31.25kHz is displaying as +/- 5%? 

I need the 31.25kHz signal around 100ppm.

I currently use a 4200 without external crystal but want to add the crystal specifically to get better accuracy on the 31.25kHz signal.

0 Likes
lock attach
Attachments are accessible only for community members.

I have changed the project configuration, I think it can meet your requirement now.