Writing to the selected address sets the output state, and reading the address reads the current values on the buttons/switches. The way the 8-bit comparator is used makes it possible for this card to use any single I/O address in the Z80 I/O address range. This is a simple I/O card that uses a 74LS273 latch to receive and store output data displayed on eight LEDs, a 74LS245 bus tranceiver to "gate" the input switches/buttons as inputs, and a 74LS688 8-bit comparator to do full address decoding of 8 bits. As expected, the card performs exactly what it was designed to do, both when connected directly to the SBC and when connected to a 5-slot Z50Bus backplane. During that time, Steve Cousins and I were talking about his boot-up status output using a standard I/O port, and that it would be nice if I would be able to provide a digital I/O card a short time after launching the kits.Īs I already had my prototype prototyping cards and a bit of time, I designed a card inspired by Spencer's RC2014 Digital I/O card, and assembled it using simple point-to-point wiring.
While working towards getting my LiNC80 SBC1 kits ready for sale, I had a little bit of waiting-time to cover. It’s time to win or lose.2May/18 0 Digital I/O card for my Z50Bus computer It’s time to see what you have left in the tank. There are no more cards to play, no more sly angles. Or, to put it in terms of the Ronde van Vlaanderen, DEFCON 2 is when you turn off the main road in Kluisbergen, start winding around on the flat, narrow path that meanders in the direction of the foot of the Oude Kwaremont. Hence the DEFCON 2: a lot of things were on the verge of going very wrong.
But Iraq also fired a large numbers of missiles at Israel, and the US convinced Israel not to retaliate, fearing that if they did, other Arab nations might join the conflict on the opposite side. Sure, mostly it was about whether Iraq could beat up on Kuwait or whether the US could then beat up on Iraq. The latter, well, if you were around then, it makes sense. Remember, until you hit “SUBMIT” on your team, you’re not in.ĭEFCON 2 is what we went to in the Cuban Missile Crisis and the early days of Operation Desert Storm in Iraq and Kuwait.
Or you already started but haven’t finished. you have a login here), then go directly to the FSA DS game page and get started. Or if you are already a member of the Cafe (i.e.
When this level is reached, it means nuclear war is almost imminent, and the entire armed forces structure is to be ready to deploy in six hours.įor all details about the FSA Directeur Sportif, read this post. the deadline for the FSA Directeur Sportif competition for 2021 approaches.
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