AM3351: Maximum GPIO toggling frequency

Keirs

Expert 2605 points

Part Number: AM3351

Hello.

I have two questions.

How much is the maximum GPIO toggling frequency in AM3351 ?

I want to toggle GPIO using AM3351 at 5MHz or Higher.

Is it possible?

I confirmed Datasheet, but it does not found.

Regards,

uchida-k

over 8 years ago

0 Biser Gatchev-XID over 8 years ago

TI__Guru**** 393215 points

Hi,

This has been discussed multiple times on this forum. See:

e2e.ti.com/.../252598
e2e.ti.com/.../387099
e2e.ti.com/.../202814

Hint: You can search for similar topics by typing keywords in the search window on top of the forum page.

0 Keirs over 8 years ago in reply to Biser Gatchev-XID

Expert 2605 points

Hi Biser,

Thank you for your reply.
I think there is no direct answer to my question on these postings.
I am using AM3351 at 300MHz.

Could you tell me max GPIO toggling frequency in AM3351?
Can AM3351 toggle GPIO at 5MHz or higher?

Regards,

uchida-k

0 Biser Gatchev-XID over 8 years ago in reply to Keirs

TI__Guru**** 393215 points

Even 5MHz will be hard to reach, and then if you are only doing that.

0 Biser Gatchev-XID over 8 years ago in reply to Biser Gatchev-XID

TI__Guru**** 393215 points

If you use the PRU you can get much higher, close to 100MHz.

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AM3351: Maximum GPIO toggling frequency