> Is there a good way of getting the 6821 to a known default state on > powerup? If it's anything like the 6526 the PIA will be set to all > inputs and I guess you could just use a couple of pulldown resistors > to get them all to zero. Why pulling them to (L)? Why not keeping them (H)? For pulling them (L) you'll need a 3K3 per input. And these cause stress the moment you you that pin as output. Better pull them (H), using a 100K will do. No stress at all when pulling (L). Groetjes, Ruud http://home.hccnet.nl/g.baltissen/index.htm - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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