osiweb.org

Hi Dave,

the new message board works fine for me, but I cannot access the main site under http://osiweb.org, I'm only getting a HTTP error 500 message.

Stephan

Hi,

I'm getting only HTTP error 500 messages when I try to access http://osiweb.org. Is this a known issue?

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Stephan

The device operating the DD line must be open collector or open drain. The DD, when used with the 32K RAM board is pulled high by a resistor on the 600 board so you cannot use a device with an active pull-up. So if I want to drive the 5V DD line with a Raspberry Pi 3.3V GPIO output, I would have to...

I have a working 32K RAM expansion board, and now I'm looking into attaching a further peripheral to the expansion socket on top of the memory expansion board. My question is, how must the DD line be implemented so it doesn't interfere with the DD signal of the memory expansion board? From the threa...

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