tdididit Posted December 13, 2015 Share Posted December 13, 2015 (edited) I am working now with SDcard interface. Not much code left to do but I have some questions to ProSystem users - Did short filenames 8+3 will be enough to make device usable? - Did 1638,4 bytes per second is fast enough ? 16kB game image load in 10sec. Thanks in advance for answers here is video from Centipede image upload test https://www.facebook.com/sebastian.kotek/videos/10208456794283096/?pnref=story Edited December 13, 2015 by tdididit 1 Quote Link to comment Share on other sites More sharing options...
gambler172 Posted December 13, 2015 Share Posted December 13, 2015 Hi looks good.If you plan to sell this,count me in for one greetings Walter Quote Link to comment Share on other sites More sharing options...
Lynxpro Posted December 13, 2015 Share Posted December 13, 2015 Is this an SD device for some other platform modded to work on the 7800? I'm not finding jack on it via Google. Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 14, 2015 Author Share Posted December 14, 2015 Hi looks good.If you plan to sell this,count me in for one greetings Walter Hi, I will, but first I need to test it. I think next week first beta firmware will be ready. Thanks for good word Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 14, 2015 Author Share Posted December 14, 2015 Is this an SD device for some other platform modded to work on the 7800? I'm not finding jack on it via Google. Interface should work on any platform with DB9 joystick port. It works in pair with my moded RAMONA DEVCART. Here are early 3D visualizations of Arduino Shield and RAMONA CART Present prototypes looks bit different (shield got DS1307 RTC on board for an example ) Quote Link to comment Share on other sites More sharing options...
Hyperboy Posted December 14, 2015 Share Posted December 14, 2015 Count me in for one of these if/when it becomes available. Nice work! Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 14, 2015 Author Share Posted December 14, 2015 (edited) Count me in for one of these if/when it becomes available. Nice work! As I wrote before, firmware should be ready next week. Cart BIOS is almost done Interface will be availiable as a Arduino shield and device with microcontroller. Here are pictures of working prototypes Edited December 14, 2015 by tdididit 2 Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 17, 2015 Author Share Posted December 17, 2015 (edited) Small UPDATE I have modified memory manager part of cartridge. It use Atari SuperGame Hostspot: bit 7 - BIOS Eneble bit 6 - reserved for extension boards (dualPokey, dualSid, VIA2SD) bit 5-3 - RAM_LO bank ($4000-$7FFF) bit 2-0 - RAM_HI bank ($8000-$BFFF) Highest RAM_LO bank mapped in handler region ($1000-$17FF as RAM / $3000-$3FFF as ROM) ( Note: I am not calling it HSC region because I want to use it to load and store for an example tiny DOS, memory monitor or disassembler ) after upload 4kB HSC ROM game detect it and saving scores Highest RAM_HI bank mapped at $C000-$FFFF as ROM Memory with CR2032 battery backup BIOS contain: JOY2SD image loader, handler loader, memory monitor, RTC settings, self test I loaded with success 7816, 7832, 7848, 78SG, 78S9 images I am still fighting with my beloved Tower Toppler what is 78S4 and not start properly :/ Edited December 17, 2015 by tdididit 2 Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 17, 2015 Author Share Posted December 17, 2015 (edited) JOY2SD Arduino Shield is ready and ordered too I have got two weeks to write tiny DOS to show how SD disk and keyboard working together Edited December 17, 2015 by tdididit 1 Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 18, 2015 Author Share Posted December 18, 2015 (edited) On my github You can find some tools I wrote and using it in this project here is memory monitor --> https://github.com/tdididit/a78-tinymon should work on NTSC machines too. Edited December 18, 2015 by tdididit 1 Quote Link to comment Share on other sites More sharing options...
gambler172 Posted December 18, 2015 Share Posted December 18, 2015 JOY2SD Arduino Shield is ready and ordered too I have got two weeks to write tiny DOS to show how SD disk and keyboard working together Where can i order this???? greetings Walter Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 18, 2015 Author Share Posted December 18, 2015 (edited) PM me I sended order to PCB factory. If you like one set I can ask about one more boards set Edited December 18, 2015 by tdididit Quote Link to comment Share on other sites More sharing options...
Hyperboy Posted December 18, 2015 Share Posted December 18, 2015 Is this available for order now? Quote Link to comment Share on other sites More sharing options...
gambler172 Posted December 18, 2015 Share Posted December 18, 2015 PM me I sended order to PCB factory. If you like one set I can ask about one more boards set Yes please....one for megreetings Walter Quote Link to comment Share on other sites More sharing options...
Jinks Posted December 19, 2015 Share Posted December 19, 2015 Will be interesting to see it in action so I can understand what it is and what it can do! 1 Quote Link to comment Share on other sites More sharing options...
Machine Posted December 19, 2015 Share Posted December 19, 2015 Will be interesting to see it in action so I can understand what it is and what it can do! Me too! Can anyone clarify for "a slow learner" what this does? It looks like a SD cart, if so...me want!!!! Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted December 19, 2015 Share Posted December 19, 2015 Watch, a bunch of people will buy this over my devkit. Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 20, 2015 Author Share Posted December 20, 2015 Me too! Can anyone clarify for "a slow learner" what this does? It looks like a SD cart, if so...me want!!!! It is SDcard drive & PS2/USB keyboard interface plugged to second JOY port. Second part of set is moddified devcart, I am sure that there will be possibility to use it with CPUWIZ devkit, if he put communication routines into his devkit cart ROM You will be able to upload A78 images to play games but it is not all In new applications you will be able to load&save files, create directories or remove no needed files from card. I always preffered to draw fonts, draw pictures, compose music on real hardware With 101-keys keyboard it will become real Created files and directories will get actual timestamps thanks to DS1307 Real Time Clock included on drive board In applications you will be able to use RTC time too. Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 20, 2015 Author Share Posted December 20, 2015 Watch, a bunch of people will buy this over my devkit. Maybe, but it is all your fault I started this project when I lost hope to buy your kit. I realy want to finish my port of Robbo and few other 7800 games I started 1 Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 20, 2015 Author Share Posted December 20, 2015 PS2/USB keyboard works with ProSystem now https://www.facebook.com/sebastian.kotek/videos/10208502954157064/?pnref=story Quote Link to comment Share on other sites More sharing options...
Jinks Posted December 21, 2015 Share Posted December 21, 2015 Watch, a bunch of people will buy this over my devkit. I was just wondering how it works etc. I can't program crap so no need for it. Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted December 21, 2015 Share Posted December 21, 2015 Maybe, but it is all your fault I started this project when I lost hope to buy your kit. I realy want to finish my port of Robbo and few other 7800 games I started LOL, I still have an unsold POKEY devkit sitting around, are you sure you asked me for one? Either way, cool project. Quote Link to comment Share on other sites More sharing options...
SIO2 Posted December 21, 2015 Share Posted December 21, 2015 (edited) Cool project indeed.If I recall correctly, RAMONA was a portable version of DevOS. DevOS allows programs to be uploaded from an old PC parallel port to a RAM cart through the 7800 second player joystick port. Rather than replacing the 7800 bios on the 7800 motherboard as done for a DevOS mod, RAMONA placed the communication program on the cartridge alowing it to work on unmodified 7800s. Using SD to upload instead of PC is very cool. Still trying to figure out what use a keyboard would be unless you sell me one with a printer interface. Then I will write you a nice thank you note. Edited December 21, 2015 by SIO2 Quote Link to comment Share on other sites More sharing options...
tdididit Posted December 21, 2015 Author Share Posted December 21, 2015 (edited) If I recall correctly, RAMONA was a portable version of DevOS. DevOS allows programs to be uploaded from an old PC parallel port to a RAM cart through the 7800 second player joystick port. Rather than replacing the 7800 bios on the 7800 motherboard as done for a DevOS mod, RAMONA placed the communication program on the cartridge alowing it to work on unmodified 7800s. Using SD to upload instead of PC is very cool. Still trying to figure out what use a keyboard would be unless you sell me one with a printer interface. Then I will write you a nice thank you note. You are right. RAMcart ROM contain communication program and file picker. PS2 keyboard is a addon feature, you can still use joystick in menu if you like to upload and play games only There is no LPT connection, only Arduino with shield (everybody got one dusty Arduino in drawer). This Arduino replacing old PC and its hard drive Thing what makes it different is that JOY2SD acting more like disk drive (you can load, save and remove files, read, create and remove directories on card). Atari is sending commands to JOY2SD device, not only waits what "old PC" will want to do, like it was with LPT cable Only common between LPT and JOY2SD is that both using 3 bit frame communication method. Edited December 21, 2015 by tdididit Quote Link to comment Share on other sites More sharing options...
SIO2 Posted December 21, 2015 Share Posted December 21, 2015 Thing what makes it different is that JOY2SD acting more like disk drive (you can load, save and remove files, read, create and remove directories on card). That is exciting. Quote Link to comment Share on other sites More sharing options...
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