Async Clock Signal

キャンセル
次の結果を表示 
表示  限定  | 次の代わりに検索 
もしかして: 

Async Clock Signal

880件の閲覧回数
stevenlutz
Contributor II

I'm making an interface that requires a clock signal output that is 16x the UART baud rate (9600) which puts me at 153.6 kHz.
I was trying to generate this on the clock out pin but it doesn't seem mathematically possible. 
What other options do i have besides just hitting a gpio port?


This is on a MKE18F

0 件の賞賛
返信
3 返答(返信)

814件の閲覧回数
mjbcswitzerland
Specialist V

Hi

A Flex Timer may be possible if you have a source that it can use to derive the exact frequency.

Regards

Mark

Complete Kinetis solutions for professional needs, training and support: http://www.utasker.com/kinetis.html
Kinetis KE1xF:
- http://www.utasker.com/kinetis/FRDM-KE15Z.html
- http://www.utasker.com/kinetis/TWR-KE18F.html

uTasker: supporting >1'000 registered Kinetis users get products faster and cheaper to market

Request Free emergency remote desk-top consulting at http://www.utasker.com/services.html

Open Source version at https://github.com/uTasker/uTasker-Kinetis

0 件の賞賛
返信

814件の閲覧回数
stevenlutz
Contributor II

Is there any option that doesnt require adding an additional source?

I dont want to add any more components to the board.

I am running the external 8mhz clock but that's it. 

0 件の賞賛
返信

814件の閲覧回数
mjbcswitzerland
Specialist V

Steven

The FTM can be clocked from various sources:

pastedImage_1.png

If you can generate 9600 Baud on the LPUART (with the same clock sources) a x16 clock will also be possible with the same resolution.

Regards

Mark

0 件の賞賛
返信