Hello! email@example.com wrote: > Interesting read, Michau. I am sure not an expert on IEEE bus as > implemented on CBMs, but I always thought that IEC was a kind of serial > version of the IEEE. Meaning that the communication mechanisms and > protocols were adopted from IEEE. Things like ATN addressing and co. If > something, I would expect more problems with the IEC version due to > stripping down the number of lines and functions but what you write > seems to contradict it. I am surprised that there is no way do detect > the "device not present" condition in a similar way as on the IEC bus > for example. Interesting. How did the PETs detect the condition? The IEC protocol being slower, does not mean it's otherwise technically inferior. As the physical level, it is a totally different protocol, which uses some IEEE concepts only for convenience. The problems with device detection arise when there is no device present on the bus. I guess with the PETs they didn't think it's a big problem. Regards, Michau. Message was sent through the cbm-hackers mailing listReceived on 2014-11-09 10:00:39
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