Am Fr 6. Juni 2008 schrieb Werner Almesberger: > - how long does one have to hold AUX when bringing up u-boot from NOR ? > > Again, I have no direct measurement. The same approximation would > yield about 75ms. > > The general rule is to hold AUX until the boot menu appears, which > is guaranteed to be well after we've left that critical phase.
Strange enough, for NOR I have to *release* AUX eventually, or bootmenu never will come up. This is 'U-Boot 1.3.2-rc2-dirty-moko12 (Mar 5 2008 - 13:43:55)' 'Boot menu (NOR)' If I released power-button before release of AUX, it simply fades away to off, on release of *AUX*. So correct sequence for me is 'press AUX, press power, wait 1 sec, release AUX, wait for menu, release power' /j
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