Search found 3469 matches

by exxos
Sun Jan 14, 2018 12:53 pm
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 46
Views: 2731

Re: no-software internal RTC

It's slightly annoying that I did have a picture of a battery back up mod for the ST keyboard, but I don't seem to be able to find it right now :( Peters site has the diagram of it. I have seen it done on keyboards I have had in the past, but mostly was just leaked batteries so got binned. I think ...
by exxos
Sun Jan 14, 2018 11:28 am
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 46
Views: 2731

Re: no-software internal RTC

Does the rp5c15 itself support dates over 2000 ? The datasheet doesn't seem to say. Of course like you say, software is patched as work-around for this. In my future projects I plan to use same RTC kit as I produce for Falcon RTC replacement. Of course need some basic software to use it on ST.. Falc...
by exxos
Sun Jan 14, 2018 12:47 am
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 46
Views: 2731

Re: no-software internal RTC

Sounds like a great idea. Would assume all the info would be in the data sheet for the keyboard ic ?
by exxos
Sat Jan 13, 2018 10:43 pm
Forum: RTC (Real time clock)
Topic: ST RTC EXTERNAL BETA - WIP
Replies: 8
Views: 1049

Re: ST RTC EXTERNAL BETA - WIP

That's why I was thinking rather about a pass-through device connected between keyboard and motherboard, that would set the RTC in the keyboard from the modern DS-1307 battery backed-up RTC on this device on power up, and after that be completely transparent or would intercept queries to the origin...
by exxos
Sat Jan 13, 2018 8:53 pm
Forum: HARDWARE ISSUES
Topic: Keyboard connector
Replies: 3
Views: 400

Re: Keyboard connector

Soldered in I assume ?
by exxos
Sat Jan 13, 2018 8:48 pm
Forum: RTC (Real time clock)
Topic: ST RTC EXTERNAL BETA - WIP
Replies: 8
Views: 1049

Re: ST RTC EXTERNAL BETA - WIP

Wiring to the ROM port is easy, but how are you going to get the software to run from the ROMs ? You cant just copy files to the eproms and have them work. It would take some work to adapt the software to cartridge, I can't see anyone putting the time into that when the program is small enough to ru...
by exxos
Sat Jan 13, 2018 5:31 pm
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: Let's play cartoons on STE, TT, Falcon
Replies: 14
Views: 1676

Re: Let's play cartoons on STE, TT, Falcon

:bravo: That is really cool :thumbup:
by exxos
Fri Jan 12, 2018 9:49 pm
Forum: ATARI MUSIC NETWORK
Topic: PSSED the free PSS 680 upgrade - Malcolm Ramage
Replies: 0
Views: 772

PSSED the free PSS 680 upgrade - Malcolm Ramage

yamaha-pss-680.jpg Blue Whale PSSED synth editor for the Yamaha PSS series By the beginning of 1988, Yamaha had taken the synth world by storm with the Yamaha DX7 and had launched a number of smaller synthesizers to allow those without £2000 or so to spare to join in with the Frequency Modulation r...
by exxos
Fri Jan 12, 2018 9:41 pm
Forum: ATARI MUSIC NETWORK
Topic: Yamaha PSS-680 Retro Review - Malcolm Ramage
Replies: 0
Views: 383

Yamaha PSS-680 Retro Review - Malcolm Ramage

PSS-680-1.jpg It seems such a long time ago now, but back in 1988 Yamaha and Casio ruled the U.K. home keyboard market with a series of decidedly average keyboards. Ok, there were a few exceptions to the rule, such as the Casio CZ-230S, but on the whole the sound quality was, well compared to keybo...