Lime2 power-up issue

Started by RobLewis, January 20, 2021, 03:40:31 pm

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RobLewis

Hello

I have problem at power-up, every second start of board is failed.
The PSU 5VDC 1A work normally, I tested with two other PSU as well.
Also I try several different version of OS, but have same result.
How I can detect this problem?

Kind regards,

LubOlimex

What does the fail exactly look like? Any log of regular start up and failed start up to compare?

How long do you keep the power disconnected before re-applying it? If you remove the power supply and re-apply it very fast (for example 1 second after removing it) this might be a problem. Some capacitors are still charged.

If you wish to avoid such power down - power up problems my advice is to have always Li-Po battery connected. This fixes most similar issues.
Technical support and documentation manager at Olimex