Configuring am437x to 1GHz

Hi Umair,

AM437x GP EVM Rev. 1.2A is a pre-production build with limited quantities delivered. I have one of these and I think it has a 800MHz device on it (no "100" suffix).

Umair, the PMIC definitely needs to be configured for a higher voltage as higher MPU frequencies require higher voltages on the VDD_MPU rail.  See Section 5.4 of the AM437x datasheet.

With that said, your device may be limited in its maximum supported frequency as Biser has pointed out.

Regards,

James

This is creating a bit of confusion in my mind. Can you please said something with surety about the maximum supported frequency? This will make my problem very easy.

Thanks for your cooperation.

Umair Khan.

I consulted that manual but as in the manual:

DEVICE SPEED RANGE
80 = 800-MHz Cortex-A9

There was no 80 postfix. Thats why I was a bit confused.

Thanks. You solved my problem.

One more explanation:

once it goes to full production, then we will have AM4376BZDN80 = 800MHz and AM4376BZDN100 = 1GHz. (as well as AM4377/8/9). My post above was related to iniitial samples only....