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About E474

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  1. Hi, Have you tried commenting out all the code between saving the registers and restoring the registers - maybe just use an increment border color register to see if the DLIs are being triggered correctly?
  2. Hi, Here are pics of the case I made for my Sys-Check 2 out of an old cassette tape box. @Gunstar came up with the idea, and has done a better job, but this works for me even though it is a little rough and ready! Also, this is only good for a 600/800XL, I think you would need quite a different design for an XE.
  3. Hi, I ordered what I thought was a discovery board from AliExpress, but it turned out two of the pins that are used by the cartridge break out board were missing from the "discovery board" I got from China, so I have to sit down and hack the software to use different pins. So that project went in the 'someday/maybe' pile. After that, I found an eBay seller that was selling the correct discovery board for about £16, so I ordered that (last item in stock, now delivered), but that was when I saw the price hikes for other discovery boards. I ordered the microSD break out board from AliExpress, so I am not sure when that will arrive, but I am swamped with things to do, so am just priming the pipeline so to speak. Having been caught out by the number of pins on the discovery board versus number of lines required for a project, all I can suggest is that you check that the discovery board you are getting is actually pin compatible. Also, I got some 50 line (25 * 2) edge connectors from AliExpress for a PBI -> discovery board connector project, but have had to order more female Dupont crimp connectors as I am not a natural when it comes to crimping. Hope this helps, caveat emptor!
  4. Hi, It's based on the STM32 discovery board, or at least the original write up used that, it's a STM32F407G-DISC1, which can be had for about £16 on eBay, though a lot of sellers seem to have upped the price by quite a bit, or are selling something else for more. The original thread is here: I believe @Wrathchild is using the Allegro game development kit for coding on the STM32 https://en.m.wikipedia.org/wiki/Allegro_(software) I want to do some coding for it, but want to get the next version of ATR Maker Deluxe finished first, but real life is not giving me much free time at the moment.
  5. Hi, I was just skimming the most recent post from @mozzwald - the bit about the SIO connectors being the most difficult bit.
  6. Hi, I made a case out of an old tape cassette case, just went at it with a hacksaw and some glue. I'll post some pictures when I can, though it does not look so great, but would keep any stray drinks, etc., off the Sys-Check, which is why I made it in the first place.
  7. Hi, If you are planning on making a custom PCB, have you considered incorporating the "poor man's SIO" edge connector, which is just a matter of having the SIO edge connectors on the top and bottom of the PCB, and wedging it into the SIO pins on the 8-bit. See:
  8. Hi, It's more that I have a 5 pin DIN connector, and a SCART cable in hand, and want to assemble them. My TV has SCART, HDMI and component Audio/Video (5 leads), so I thought the simplest thing would be making a 5 pin DIN -> SCART cable. Something similar to: https://www.retrogamingcables.co.uk/atari-8-bit-composite-video-scart-cable-for-800xl-65xe-130xe-800xlf-1400xl-1450xld-1200xl There is brief discussion in: And it looks like a simple project, but I was wondering if anyone had any tips or had tried it?
  9. Hi, Has anyone had any luck making a 5 pin DIN (PAL) -> EuroSCART cable? I think it's described in the Atari FAQ, but I haven't tried making one, and I was just curious if anyone had put one together already?
  10. Hi, I like the idea of specifying the IP address (and port) for an N: device in the CIO OPEN statement, but you might want to think about having something similar to a Percom block for a network device if you are doing UDP via SIO. That way you can set/get the ip address and port, and anything else you need. Otherwise you have to put the info in each buffer/frame that gets written, and there also isn't really a place in the DCB buffer for this info.
  11. Hi, Is there a version of SpartaDos X that runs on the UnoCart?
  12. Hi, Just to clear up the wiring for the SIO connector, if you are powering an SDrive Max from USB or the Arduino power connector, should you make sure *not* to connect the SDrive Max to the SIO power line (pin 10 +5v/Power)? That is: - only connect the SIO power on pin 10, or - only use USB power or Arduino power socket power - not both at the same time I think I may have been having power level issues with the two SDrive Maxes I have built, one setup worked fine, one was white screening (on the same system), but the second Arduino had issues with the firmware flashing, so I've just managed to reset it via ICSP, and am going to have another go at building the perfboard SIO fixup circuit. Incidentally, the original perfboard prototype by @BigBen drew its power from pin 10 (judging by the photos), should you also not connect SIO pin 10 if you have this upgrade/fix? Thanks!
  13. Hi, Looks very nice, is there any way you can separate out the program and level data, so you get two 90K images (sides ?), so it can run on 810 drives as well?
  14. Hi, I just mentioned this as I watched the video (very informative), and one of the comments during the video was about using external power during a power cycle, which is when I wondered if adding a supercapacitor would be a good idea. Also, I had a quick look at the diskulator (?) sources, and saw you were using #$70 for DDEVIC, but I thought this was being avoided as it clashed with the SDrive, but I am not sure if this is the same functionality anyway? It's a pity that the SDrive code can't be unified as there is probably some functional overlap. I was also wondering how easy it would be to implement the code on a Raspberry Pi Zero (or anything else), as apart from some of the SDrive devices, most of the devices hosting ATR images also have network connectivity, so should be able to provide N: device capability? Glad to see this project making progress!
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