On Wed, 1 Nov 2000, Adam 'WeirdArms' Wiggins wrote:

> 
>       We are having problems with our brutus similar to what you
> discribe. It sometimes doesn't reset properly and its getting worse (it
> seems to not be resetting at all properly now.

What version of Angel are you using? 1.2 seemed to work better than 1.05,
it at least doesn't break on serial downloads(hasn't yet).

I found that after power on, if the green LEDs don't blink in the correct
sequence, the board more than likely will not work even if it is reset and
released.

However on one particular board, the green LEDs would not flash in the
right sequence, but applying reset for a few seconds and pulling it out
allowed it to function. This had to be done every time the board was used
(powered on).

You might want to leave reset on before you turn the board on, then pull
it out of reset manually when the board is up.

I found that messing with S17 and S18 usually leads to "bad things" (weird
POR conditions) so I don't suggest you use them unless you need to.

I did find however after using my paper trick (basically putting a little
more pressure on the CPU) it would POR more reliably.

You might also try power cycling the power supply...

If you are to replace your StrongARM part, try getting a 190MHz version.
You can't drop it in however, a resistor will have to modified to allow it
to run at a lower voltage, but these parts seem a little more reliable.

Sorry if I'm rambling, I've met a few Brutea and they all have done weird
things.

Thanks,
Vasant.


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