[Milkymist-devel] NOR Flash torture testing - background and results so far

[Uwe Bonnes]

>>>>> "Werner" == Werner Almesberger <werner at almesberger.net> writes:

    Werner> Summary: automated testing produced results consistent with the
    Werner> work-arounds for NOR corruption indeed working a expected, but
    Werner> do not yet provide a conclusive confirmation. Further testing to
    Werner> focus on validating improved rc4 circuit.


    Werner> Background:

    Werner> During the last weeks, I've been torture-testing the M1's
    Werner> NOR. The background is that M1 (at least rc2 and rc3)
    Werner> occasionally suffers a corruption of NOR content, which prevents
    Werner> it from booting. The corruption can be removed by re-flashing
    Werner> the affected partition(s).
...

In the schematic (page 7 of rc3_schematic.pdf), I don't see a pull-up on
the JS28F256 CE0 pin and neither on we_n. Shoudn't these pullup help too?

Bye
-- 
Uwe Bonnes                bon at elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
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