[Milkymist-devel] NOR Flash torture testing - background and results so far
bon at elektron.ikp.physik.tu-darmstadt.de
Wed Oct 5 01:38:15 PDT 2011
>>>>> "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> 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?
Uwe Bonnes bon at elektron.ikp.physik.tu-darmstadt.de
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
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