+arcadeshopper Posted October 27, 2015 Share Posted October 27, 2015 Is there any reason that the HDX DSR board can't just be a couple eproms? Does it use the RAM at runtime for buffers? If you want to use just a rom you would just burn one and replace the rom with it. (pin compatible?) Imho that would remove upgrading capability but add stability and require no hardware extra except to make the pins compatible with the rom. Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted October 28, 2015 Share Posted October 28, 2015 A few pins would need to change to switch to ROM. You could probably do that easiest by using a properly cross-wired pair of sockets--that way the mod would be reversible. Quote Link to comment Share on other sites More sharing options...
+jedimatt42 Posted October 28, 2015 Share Posted October 28, 2015 I had the impression the extra wires were mostly there to control write selection. So I was thinking since the board is socketed onto the card, replacing the card with an eprom might be just fine... But then I was noticing today that Fred Kaal's loader loads two different banks. I haven't looked at the schematics at all yet. But the stability seems worth it a little research. Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted October 30, 2015 Share Posted October 30, 2015 I have no issues with stability beyond making sure I change the battery Greg Quote Link to comment Share on other sites More sharing options...
Willsy Posted October 30, 2015 Share Posted October 30, 2015 I have no issues with stability beyond making sure I change the battery Greg Same here. I've never had the DSR RAM corrupt on me. Quote Link to comment Share on other sites More sharing options...
Opry99er Posted October 31, 2015 Author Share Posted October 31, 2015 Is there a way to test the HDX DSR via XB and without a serial connection? I want to know if I need to get a copy of the DSR on floppy before "go-time." Quote Link to comment Share on other sites More sharing options...
Omega-TI Posted October 31, 2015 Share Posted October 31, 2015 I want to know if I need to get a copy of the DSR on floppy before "go-time." Yep. Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted October 31, 2015 Share Posted October 31, 2015 Is there a way to test the HDX DSR via XB and without a serial connection? I want to know if I need to get a copy of the DSR on floppy before "go-time Sure just try an open/save to pio or rs232 if that works it has a dsr Greg Quote Link to comment Share on other sites More sharing options...
Opry99er Posted October 31, 2015 Author Share Posted October 31, 2015 Thanks... Will try tonight. Quote Link to comment Share on other sites More sharing options...
Opry99er Posted November 18, 2015 Author Share Posted November 18, 2015 Bought this today I have a male end on my cable from the rs232 and a male serial input on my PC. This is a straight through F-F serial cable. Hopefully I will be in business soon. 1 Quote Link to comment Share on other sites More sharing options...
Opry99er Posted November 21, 2015 Author Share Posted November 21, 2015 Cable arrived in the mail. Hoping for a short night at work so I can get home and start work. If I get it running, I will be able to transfer the Holiday demos over and run them on a real TI. Looking forward to that immensely! First order of business though, is to swap my PEB and try to eliminate some gremlins... I need reliable disk access if I am to progress with the projects I currently have on the docket. 1 Quote Link to comment Share on other sites More sharing options...
Opry99er Posted November 22, 2015 Author Share Posted November 22, 2015 Okie dokie.... Got the cable hooked up, serial port COM1 is reading properly in PC status menu. I have TI99HDX running. When I turn on my PEB and my TI, however, no activity happens in the bottom left of the HDX window. It remains "Ti99Hdx started...". So, I try to OLD HDX1.PROG from XB and the rs232 card lights up, but no activity on TI99HDX. The TI (basically) freezes. I tried WITH and WITHOUT the crossover cable and no dice either way. I have checked all my connections and no problems are immediately evident. Any thoughts? Quote Link to comment Share on other sites More sharing options...
Opry99er Posted November 22, 2015 Author Share Posted November 22, 2015 One thing I noticed when my crossover is connected... When I boot the TI, it hangs on cyan for a split second while the rs232 card lights up.... then it goes to the title screen. Still nothing is recognized in TI99HDX on the PC Quote Link to comment Share on other sites More sharing options...
Opry99er Posted November 22, 2015 Author Share Posted November 22, 2015 Swapping PEB, 32k, card slots, nothing has changed the behavior. Starting to wonder about the cables at this point. Since XB doesn't balk at "OLD HDX1.PROG" I am inclined to believe the DSR is still good..... Gotta be something simple-ish. Quote Link to comment Share on other sites More sharing options...
Fritz442 Posted November 22, 2015 Share Posted November 22, 2015 One thing I noticed when my crossover is connected... When I boot the TI, it hangs on cyan for a split second while the rs232 card lights up.... then it goes to the title screen. Still nothing is recognized in TI99HDX on the PC I also saw this hang when I was building my cables, I didn't have them quite right. Quote Link to comment Share on other sites More sharing options...
Opry99er Posted November 22, 2015 Author Share Posted November 22, 2015 Thanks for the info.... Gives me something to think about... The fellow that built the splitter and whatnot... he has built these before and uses one just like mine in his own setup. Just curious that it would be 'off'. Quote Link to comment Share on other sites More sharing options...
Fritz442 Posted November 22, 2015 Share Posted November 22, 2015 (edited) If you unplug the cable, with OLD HDX1.PROG, do you get an I/O ERROR 06? And you should get this error with the cable connected and TI99Hdx.exe not running on PC. Edited November 22, 2015 by Fritz442 Quote Link to comment Share on other sites More sharing options...
Opry99er Posted November 22, 2015 Author Share Posted November 22, 2015 No... Rs232 card lights up and it holds, waiting for input. Quote Link to comment Share on other sites More sharing options...
Fritz442 Posted November 22, 2015 Share Posted November 22, 2015 No... Rs232 card lights up and it holds, waiting for input. Humm, with mine I get that error with either. That kinda leaves out the cable. Quote Link to comment Share on other sites More sharing options...
Opry99er Posted November 22, 2015 Author Share Posted November 22, 2015 Well here is what I know. Greg Warner (the fella that built the cables) built the splitter to operate with a null modem cable... The crossover allows one to use a straight through cable. If that is the case, then something else is wrong. I could buy another cable (null modem) and try without the splittter, but I have no idea if that will do any better or worse. Something happens when I boot up the TI with the correct cable configuration prior to the title screen... The rs232 lights up and it hangs for a minute. I have no idea what that means. Quote Link to comment Share on other sites More sharing options...
Fritz442 Posted November 22, 2015 Share Posted November 22, 2015 (edited) OK I just tested both of my Hdx's, with the cable removed from the RS-232, I get the Error 06 with an OLD HDX1 command. That eliminates the cable/splitter/adapter from this test. Maybe someone else with an Hdx can confirm this. If that's correct and your not getting that error, then something else has to be wrong on the TI side. Edited November 22, 2015 by Fritz442 Quote Link to comment Share on other sites More sharing options...
Opry99er Posted November 22, 2015 Author Share Posted November 22, 2015 Interesting... Perhaps something is loose on the board or something... Quote Link to comment Share on other sites More sharing options...
Fritz442 Posted November 22, 2015 Share Posted November 22, 2015 (edited) Interesting... Perhaps something is loose on the board or something... Definitely eyeball the card, if you see nothing...try removing the battery(to clear the dsr) and reloading the DSR, maybe something got twisted... Edited November 22, 2015 by Fritz442 Quote Link to comment Share on other sites More sharing options...
Opry99er Posted November 22, 2015 Author Share Posted November 22, 2015 (edited) I do not have a physical copy of the DSR on disk. If I clear the DSR, I will not be able to reload it. Edited November 22, 2015 by Opry99er Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted November 22, 2015 Share Posted November 22, 2015 I do not have a physical copy of the DSR on disk. If I clear the DSR, I eill not be able to reload it. I'll mail you a disk.. what controller do you have? #1 thing to be sure is that your comm to the pc is correct. If your pc is not using a hardware card (usb maybe?) then 99% of the time the issue is that rs232 port. If it's a hardware rs232 port then I'd lean towards the cable being the issue. If you can get rs322/1 with a straight through cable working with the cfhdxs1 program (included on xb2.8 option U) THEN it should work on rs322/2(hdx) with the dsr too.. Greg Quote Link to comment Share on other sites More sharing options...
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