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About Kelvintronic

  • Rank
    Space Invader
  • Birthday 09/16/1976

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  • Gender
  • Location
    New Zealand
  • Interests
    Guitar, bass, electronics, arduino, linux, atari 8-bit, MAME, gardening, woodwork, tinkering in my workshop, etc...
  • Currently Playing
    My favourate Atari 8-bit games:
    MULE, Archon, Bruce Lee, Montezuma's Revenge, International Karate, Bolderdash
  1. It looks like a mute switch because it looks like one side of the switch is connected to pin 37 of U22 (POKEY) and the other side to earth. The switch when closed would ground out the audio signal from POKEY. If that is the case it's weird that it disrupts the video signal. Are you using the composite out or the TV out for video?
  2. Well, if you had been following the entire thread you would have understood... The Doctor is correct. My ORIGINAL post refers to the Side2 and booting ATRs. The firmware updates was what I needed to enable me to load ATRs with the Side2 but I couldn't access the update disk images without the SIO2PC. If only the items had shipped with the latest firmware. LOL! Still, now I have two Ataris and I can run one with Side2 and the other with SIO2PC
  3. -The SIO2PC has a sticker on it that reads: 2019-May-27-147 -I am using Windows 10 -The driver is FTDI (On the Advanced tab of the USB device Load VCP must be checked for the port to be visible) -RespeQt is version r4 (in settings port should match COM of driver and the handshaking should be set to SOFTWARE) Hope this helps.
  4. See attached Lotharek's manual for the SIO2PC. Refer to page 10 where it says "The "Handshake method" should be set to "DSR" as shown above." SIO2PC Manual.pdf
  5. Success!! Lotharek's manual on the SIO2PC says that the handshake method should be set to DSR... well, I set it to SOFTWARE(SIO2BT) and what do you know, it worked. It makes a mockery of RTFM when the manual is wrong. So anyway, I have now been able to update the firmware of both the Side2 and the U1MB. Sure enough, I can now boot ATR images directly from the Side2. Good times Thank's for everyone's help.
  6. Thanks so much For others that posted with suggestions, thank you also, however I will spend some time enjoying the machine again before I revisit the ATR booting issue.
  7. For those who are interested, the saga continues... I've been trying to get the Atari to boot from RespeQt... I tested the sio port with a multimeter and traced each pin to their destination on the chips and all was good. I reseated the POKEY chip and PIA chips. So then I decided to risk it and bought replacement POKEY and PIA chips from Best Electronics. While I was waiting for the chips to arrive I found a 130XE for sale locally so I bought that. But I couldn't get that to boot from RespeQt either. With the 130XE I tried the Side2 and that works as with the 800XL except that if I boot SDX I get error 13 when I try to access the drives on the CF card. I installed the U1MB and that works but the workaround sugested by jazzflashcat won't work because the loader freezes when I try to mark the atr files with the space bar. The machine won't boot into SDX at all with the U1MB installed. Looks like I've bought a dud! Anyway, the replacement chips arrived yesterday and I installed them in the 800XL but the machine behaves exactly the same - I can't boot using RespeQt. I'm so done with this. Does anyone know a good repository with XEX files I can download? At least I know I can run those with the Side2.
  8. Thanks for the suggestion. I gave it a go but it didn't load. I'm pretty sure the Atari is faulty. I decided to remove the U1MB and reinstall the original chips. When I did, I noticed that someone has resoldered the serial socket. The machine probably won't even work with a 1050. I tested the booting after removing the upgrade. Still the same. I wonder if this is a common fault? I had several Atari's back in the day and I had one fail where it wouldn't boot disks. I never got to the bottom of it. Oh well, time to look for another machine on Ebay I guess.
  9. Yup the emulation is running. The icon is joined and there is blue text in the window saying 'Emulation started through standard serial port backend on 'COM3' with DSR handshaking.' But something is not right when I turn the Atari on and the screen is completely yellow. The device is doing something to the Atari to make this happen. If I boot without it plugged in the machine works normally. I wish I new someone locally with another Atari so I could test the device on their machine.
  10. Hey Guys, I got the SIO2PC adapter earlier in the week and I can't get it to work! I'm starting to think there's something wrong with the Atari I've followed Lotharek's instructions - they're pretty simple. I'm using RespeQt. I set the com port appropriately and the handshake to DSR. I decided to load a game to start with. I hold option and switch on the machine just like I did when I was a kid. But all that happens is the screen goes completely yellow. Well, so then I tried to boot into SpartaDos from the 1MB Upgrade: I set the disk to the upgrade.atr and with the Side cart removed I went into the bios and enabled SpartaDos. Then used the coldstart key to get to spartados. The light on the Sio2PC flashes a bit the SpartaDos prompt appears. I try typing DIR and the lights flash a little but the response is 138 - device does not respond. I tried to set the COM port up on the PC to match the settings but that didn't help. Either there is something wrong with the Sio2PC or the Atari. Have you guys got any advice on this one? The Atari's about to be boxed up indefinitely
  11. I am aware of this functionality. I was responding to DrVenkman and attempting to be concise. No error was reported. OK. I have four options for the OS: StockXL, StockXE, Q-Meg and High Speed. I have been using StockXL. How can I be sure which one supports PBI? I have tried them all anyway. The OS is definitely unaware of the driver when SDX is loaded via your workaround. If I load up SpartaDOS via the Side2 the card is reported present and all the atari drives are readable, but in the U1MB SDX it is not. Also, one thing to note is that SDX on the Side2 is version 4.46a and on the U1MB it is version 4.46. I appreciate your suggestions Marius. I will get a SanDisk CF card. I will check my U1MB installation. The only thing I can think I have done wrong is perhaps the four wires to the CPU are incorrectly wired? The 800XL board had socketed chips. Although it has crossed my mind that there could be something actually wrong with the Atari itself. I sure hope I don't have to pull the chip off the U1MB board and flash it separately I have purchased a SIO to USB (PC) adapter from Lotharek so I should be able to access the ATR update files with that. It's just a shame I'll have to wait three weeks for it to be delivered to little old New Zealand
  12. Thanks for your help. DrVenkman, I tried holding option but the Atari's self test activates. Specifically: I disable SpartaDOS in the U1MB and try to press L to go to the loader - it won't load. If I activate spartaDOS it does, I then try to execute an ATR (by pressing return) and hold option while doing so. I have to use this method as the PBI driver is not loaded if I enter the loader at bootup. flashjazzcat, I tried your workaround but when SpartaDOS loads after I press C from the BIOS, D1 does not respond, i.e. I get error 138 Device does not respond It seems that when SpartaDOS is loaded via the U1MB as opposed to the Side2 the drivers for the CF card reader are not loaded.
  13. Most of the games I have are atr files. I only have a few xex ones. My favourite game would have to be MULE.
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