Recent content by DrGonzo

I'd picked up an old Xeltek SuperPro 280U that said it would program them. I guess technically it does but they don't seem to work. It may be because the github says to set the reset polarity high, but the software doesn't give me the option on the XC1736? 😕 Max1zzz, I'll likely take you up...

Glad to hear you got it going! Sounds like similar issue I'd had but, due in my case, to having the wrong GAL revs. 😋 I still haven't had the chance to remove the EuroDIN and/or the 030 socket to fix my clearance issues. So many projects, so little time... ~Dr. G

As I recall, the only setting I changed was turning off encryption. Otherwise left it default. ~Dr. G

So just checked mine and pins 10 and 11 show continuity on both U5 and U6. Not on the other two though interestingly enough. The other thing I notice (but not sure it would keep it from coming up) is do you have the solder blob across SJ1? It may be looking for the crystal even though you...

Couple thoughts... - it might be just the angle of the pic, but U6 looks off center on the pads. I'd go around each GAL with a meter to make sure no shorts with the next pin over. I think there is one set that is supposed to be connected to the next one, but that should be the same across all...

That might be an option. I think there are also files that control the behavior for each type of chip buried in the SP280U software, so perhaps if they're editable I can create my own custom config as a hybrid between the two. Will keep digging.

No, unfortunately not. Tried it both ways and get the same error whenever selecting XC1736D for read and blank check. With XC1736/XC1736A the option isn't there to switch it, but for D it says high is the default so perhaps the default for all of them?

So this is what I get when I select an XC1736D from the list: As you can see. It not only fails to program as it does with XC1736/XC1736A, but also won't blank check or read the chip at all. Error! across the board. I did also do a continuity check on the ZIF socket to make sure that each...

According to the data sheets, the XC1736/XC1736A want upwards to 15v while the XC1736D wants only 12v (bad if they are D I'd imagine). If memory serves, I did try selecting the XC1736D in the device list, but it not only wouldn't program, it wouldn't even read/blank check them. It also said...

Hi Forrest, I'll take a closer look when I get back in front of it in a bit here. I actually just threw one of the 8 or so chips I'd been trying to flash on the board for the picture for completeness, but I'm quite sure they've been firmly seated in the ZIF socket (or most of the others were...

So, in tandem with building a couple of Performer 68030 boards for my SEs, I also put together a couple of the Tokamac-LC boards for my LCIIs. Everything is in and together, but I'm really struggling to get the XC1736 programmed. After determining that they weren't supported by my TL866Plus, I...

Heheh, funny you mention that as I'd pulled that same screw out this weekend to see if it would make a difference in the clearance on my Performer. It still pushed down at an angle due to the height of the EuroDIN and sockets, but I think it's not gouging the CPU anymore. Some progress I guess...

Ah, that makes sense. I'll have to pop the top open on another SE and see if I might have a different chassis that's more forgiving. I do see now that your build has a much recessed CPU with being soldered in, so that makes sense as well. I will say that my EuroDIN is likely making things...

Another vote for recap of both PS and board. I've had more LCs than I can count that came right back to life and ran good as new after. The longer you wait, the less likely this will be the case. If youre not comfortable doing it and depending on where you live, I'd guess someone in your...

So to anyone wanting to build up a Performer and planning to buy the 96 pin EuroDIN connector... probably hold off. My 68030s came in unexpectedly today so I went to install the finished product in my primary SE and it DIDN'T FIT. :( The EuroDIN increases the height by only a millimeter or...