Denial

CBM engineer Paul Lassa has the C65 Demo Disk. So, there is software.

yeah we have all seen this and had or 3 minutes of "fun" with it. now what? /o\

Line 1 has a small bug

grmplfpfl sorry :=)

looks like you have a fairly recent firmware there, it should work fine with your cards and vic20. no reason not to update it however

powercycle= turn it off and on again :) actually what really matters is that you run this program right after the device was reset (some SD2IEC have a reset button too, so pressing that would do the trick as well). when it gets the power from the vic20, just turning on the vic20 and then entering/ru...

also, before you update, powercycle the device, then type/run this small program:

0 open 15,8,15
1 input a,b$,c,d
2 print a,b$,c,d
3 close 15

(powercycling is important, else you will only see 0, ok, 0, 0)

then it will tell you the current firmware version

SD cards problems are usually "all or nothing"... ie a card that initialises correctly will also work for read/write. however, different cards draw different amount of power - it *may* be a power issue. another problem with some SD2IEC that are being sold are missing ground connections at ...

that would be surprising if the size of the sd card mattered

just guessing... did you set up the memory correctly for those programs, ie +8k when loading a program that needs it, and unexpanded for programs that run on unexpanded?

i'd just use a simple copy program written in BASIC - the 1541 demo disk for example should have one that works on vic20 too

every system starts with no software

actually pretty much every vendor does whatever he can to make sure that is NOT the case when a new system launches (even commodore did)

dont forget "no software"

U64 has little to do with "c65" though

there is no evidence for either, neither that it "works" nor that it does not. it'd also be hard to produce such evidence :) (anecdotes do not help) however, its undeniable fact that a circuit like this is relatively slow, and would expose the output to high(er) voltage much longer than de...

But is there any product you recommend we use that is new? not a specific product. i am using a C128 PSU myself, which is quite a bit better than the C64 powerbricks. should that ever fail, i'd probably just build a replacement myself :) a good DIY variant for ppl without any electronics knowledge ...

US Army trained and was dealing with electronics before most of us were born.

that doesnt make this circuit any better really no doubt he has published some good stuff - but there is no doubt some of the things he made are a bit questionable either.

ah modern circuit should have a crowbar circuit to prevent overvoltage on failure... even THAT can not be fast enough in some situations, but a relay certainly isnt. a relay based circuit can only ever protect against overvoltage which raises relatively slow while the PSU is being used - however the...

conio is optimized portable console output, so it doesnt understand any of the petscii control codes... if you want that, use stdio functions, putchar() would be the function that can do it. that said, its probably a better idea to write to the respective VIC registers directly (someone else can pro...