Auto-boot from disk (uIEC)
in [Commodore]
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From: christianlott1 on 6 May 2008 20:52 duh. I could also just switch in the jd or dolphindos I have from the 64hdd pwrldr rom. Forgot about that.
From: Jim Brain on 4 May 2008 23:22 Note that I thought of a possible cheaper idea to get autoboot to work: With a small decade counter, a small timer, and 10 transistors, I think you could make the 64 autoboot. Find out which row/col combinations are needed for 'LOAD"*",8' (or ,XX, where XX is the device wanted.) Then, set up the transistors on those row/col combos. Use the decade counter to drive the transistors in sequence, and use a timer to drive the decade counter. You'd probably need two timers (a 556 would do well here). One to delay the start of the sequence by holding the decade counter reset low for a certain amount of time, and another timer to send pulses to the counter. No uC needed, no ROM changes, nothing. Of course, C=Key can do this, but it's a bit pricey if all you need is a sequence of 10 static characters. Jim
From: christianlott1 on 5 May 2008 02:27 On May 4, 10:22 pm, Jim Brain <br...(a)jbrain.com> wrote: > Note that I thought of a possible cheaper idea to get autoboot to work: > I just thought of a way to make your uIEC more complex ;) Support the tape port. Haven't you heard this one before?? :) Please don't bring up C2N232. My xp computer only likes legacy 9 pin serial communication according to obtuse and extremely rare constellation configurations.
From: BruceMcF on 5 May 2008 09:28 On May 5, 2:27 am, christianlott1 <christianlo...(a)yahoo.com> wrote: > On May 4, 10:22 pm, Jim Brain <br...(a)jbrain.com> wrote: > > > Note that I thought of a possible cheaper idea to get autoboot to work: > > I just thought of a way to make your uIEC more complex ;) > > Support the tape port. > > Haven't you heard this one before?? > > :) > > Please don't bring up C2N232. My xp computer only likes legacy 9 pin > serial communication according to obtuse and extremely rare > constellation configurations. You mean, include some subset of the DC2N system? http://www.luigidifraia.com/c64/dc2n/index.html
From: Dragos on 5 May 2008 10:57
> > You mean, include some subset of the DC2N system? > > http://www.luigidifraia.com/c64/dc2n/index.html It would be nice if that device were actually available. it sounds great, I am sure the 10 people in the world that get one will be thrilled.... |