Hallo Michał, > Bad news: ..... I have read it and my first impression is that you do something wrong. To make sur I have to read it again. The protocol of detecting the present of any drive is simple: make ATN (L) and NDAC and NRFD should become (L) as well. If they don't, no IEEE device is present. If a device is present, send device number. All devices not having this number, will release NDAC and NRFD. So if both NRFD and NDAC become (H), the wanted device is not present. Only after the device has shown its present, you start with TALK, LISTEN or what ever. IMHO the whole operation takes less then 100 cycles. -- Kind regards / Met vriendelijke groet, Ruud Baltissen www.Baltissen.org Message was sent through the cbm-hackers mailing listReceived on 2014-11-08 10:00:03
Archive generated by hypermail 2.2.0.