Re: [Flashforth-devel] UNO lockup

[Ed <dx...@gm...>]

Yes - the fuse value should be 0xFC – not 0xFD as I used for my tests.

I tried the new fuse value on FF dated 2021-11-28 but still getting flash corruption on the two boards with the SMD 328 / CH340 chips.

While I’d like to believe those boards are faulty in some way, they seem to work fine when using FF dated 2021-03-29 or earlier.


From: Mikael Nordman
Sent: Thursday, 24 March 2022 06:20
To: fla...@li...
Subject: Re: [Flashforth-devel] UNO lockup

I did some tests on my Arduino UNO board.
If the brown out reset is disabled and I quickly do power on/off,  a lot of random flash and eeprom  errors occur.
With the brown out reset enabled (any voltage), there are no errors.
So it seems definitely recommended to have the brown detection enabled
Probably the 4.5 V value should be the safest value. Extended fuse = 0xFC on the Atmega 328.
BR Mikael