stryd_one

Right so that's CMOS levels. The PIC pins are CMOS output and TTL input levels. Quite likely, the micros in the WS are the same, or are CMOS in and out. The short version is: CMOS will drive TTL, but TTL will not drive CMOS. This means you should be able to use HC. If you have problems with signal corruption, maybe try HCT... Or, use HCT at first and then try HC when it works. The only problem you'll have is data corruption, nothing should get fried. Here have an interesting link or two http://www.allaboutcircuits.com/vol_4/chpt_3/10.html http://www.interfacebus.com/voltage_threshold.html

And the keypad on the right (unless you're a southpaw)

You forgot the 2nd enable line....of course, one could do as you said and cut the enable line to the 2nd connector and run one extra wire.

Ohhh. Upload hex files with mios studio in smart mode. syx isnt recommended any more.

Patience.....

Yep swinsid is atmel and yep that adapter is good for a jdm.

15V is heading into "too much" territory. I hope you got a hefty heatsink on the vregs! If you're a n00b, then get a C64 PSU and build the optimised circuit. Edit: What does this thread have to do with smash? Or are you just advertising for him? ;) Edit2: Cleaned up the tags a bit.

Good stuff here thanks guys! About the recording thing.... Maybe it would help if there was a small delay of incoming data before it is recorded, which would cause notes played just a fraction too early, to fall in the correct step?

http://www.eng.yale.edu/ee-labs/morse/compo/logic.html That page has some good info and a whats-compatible-with-what table which is nice. That said, I'd go for HCT because it's tolerant of various levels... What's in the WS? Here's to glacial projects - moving slowly but unstoppable and very cool. :)

TK: Perhaps it would be better, to have a tool for the PC to write to the midibox format, than to have the midibox support FAT...?

There's also an expanded pin list on the wiki... It's pretty much the same, but has some added info. http://www.midibox.org/dokuwiki/mios_pin_list If you need help adding modules, just shout out.

Cool. I'll take payment in the form of pics of your box :)

No LEDRings example sorry I stand corrected ;) How's your ASM? If it's good you might be better off modding the MB64

Are you using the latest MIOS Studio? (7_5 I think)

Cool, there are a number of posts on this forum from people using the Uno so that should be right (although one post mentioned that there is more than one type of uno) This is a bit of a strange one for sure... Hope I can help fix it!! Where was the short? Can you get me those logs man? We need those to go on...

I don't know if it's worth going to a split layout to save 10 minutes of cabling, but it's not my SEQ so I'll STFU :)

Well I guess it depends on what you want. If it's just what you said there, then I'd write from scratch.

I can't explain this or test it as I don't have a clockbox :( Anyone?

http://www.eng.yale.edu/ee-labs/morse/compo/logic.html Found. FF3 Library is awesome.

74LS* is TTL levels 74HC* is CMOS levels 74HCT* is cross-compatible with both http://www.kpsec.freeuk.com/components/ic.htm#logic There's lots of googling to be had on this subject. I found one really good page that showed which types were compatible with which (about 10 types all up).... of course I can't find it now :(

Aside from the questionable concept of spilitting the display into two rows, it should work. They use two enable lines just like a pair of 2x40's though, so all you're saving is about a foot of cable and a single IDC connector.

Welcome aboard and congratulations on your correct spelling of analogue :) I don't think this is a question that only TK could answer, or even specific to the seq. If you have a look around the forums for a while you will find lots of different examples of mounting boards, in lots of different projects.

Nah HCT is the TTL level capable version...

That's a tasteful part if I ever saw one. Thx Sub!

We were just talking about the 595's capabilities, it's irrelevant of application.