Vddout of ATSAM4SD8BA....

Discussion around product based on ARM Cortex M4 core.

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phanids
Posts: 5
Joined: Tue May 18, 2010 4:26 pm

Vddout of ATSAM4SD8BA....

Mon Aug 25, 2014 11:19 am

Recently I have received ATSAM4SD8BA chips (64 Pin - LQFP). As a first power on checking, I just connected VDDIN and VDDIO to 3.3V and Gnd. When I measured VDDOUT - I see ~2.4V. Is there any other connection - I Need to rig-up to check the correct voltage at VDDOUT? (tried connecting the 12MHz crystal) but still the VDDout shows 2.4V.

Any comments/ suggestions?

With best regards,
P.
phanids
Posts: 5
Joined: Tue May 18, 2010 4:26 pm

Re: Vddout of ATSAM4SD8BA....

Mon Sep 15, 2014 5:12 pm

:D Seems I missed connecting the required capacitors to VDDOUT. This with proper checking all the pins and their voltage levels - solved and now I get proper 1.2V. :D

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