Precisely Timed reboot from AM335x based Custom Board

Sreerag Gopinath

I am trying to bring up a custom board designed based on the BeagleBoneBlack.

The board uses the same core components as the BBB including the PMIC, the exact same parts for the CPU and the DDR.

I am able to get the Beaglebone uboot bootloader up. But the Board keeps rebooting in precise intervals. The board reboots exactly in 200 seconds after powerup and reboots every 100 seconds thereafter.

We have disabled the WDT and we are sure that it is not the root cause for the reboot.

Any comments about this behavior?

over 10 years ago

0 Biser Gatchev-XID over 10 years ago

TI__Guru**** 393215 points

Hi Sreerag,

Is this behavior seen only on a single board or you have tried more than one board and they all do the same thing?

0 Sreerag Gopinath over 10 years ago in reply to Biser Gatchev-XID

Prodigy 70 points

Hi Biser,

Thank You for your reply. We found out the reason, There was a Hardware WDT in the board about which the Hardware Designer did not mentioned us.

Thank you

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Precisely Timed reboot from AM335x based Custom Board