Quote:
Originally Posted by SiriusHardware
You might want to avoid shorting any two pins together, accidentally or otherwise.
High or mostly high on pins 4 and 6 are to be expected, pin 34 (r/w) I would expect to see some activity on, but mostly high. The voltage measurement of 3.6V there suggests that it is active, but spending more time high than low. However your scope trace seems to show it completely inactive.
Any activity on higher up address lines A3-A7? (12,13,14,15,16?).
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No - no frequency reading on any of those pins.
They each read between 3.75 and 3.8V
Colin.