Sinclair ZX80 / ZX81 / Z88 Forums

Hello Bean - It's been a while (Tim Gilmore). You can try to get the edge connectors at this site: https://www.sellmyretro.com/offer/details/zx81-~~-zx80--_-slot-edge-connector-2x23-pin-%28new-stock%29-3823 I had (may still but need to check tonight) a couple of them I got from PokeMon a few years b...

I have been away from this forum for such a long time now due to a lot of things going on in my life. However, let's see if I can get back into the groove. In response to my thread from before about ZXPand+ serial devices, I see that Parallax now has a UART controlled Fingerprint Scanner . I may try...

So true Siggi!

ESD is most likely the culprit.

Thanks. I'm working on another project at the moment for work but will get back to my TS1000 in a couple of weeks or so.

Tim

It seems to be good. I haven’t plugged in my ZXPand yet to be 100% sure but feel confident it will work. I just need not to plug in the wiznet ircchat board and ZXPand together. Not sure if that’s what killed the flash rom chip on ZXmore or not but just glad it’s back up again.

Tim

I finally got a chance to see what happened to my ZXmore. It was the programmed flash rom chip not the CPLD. All comes on correctly now. Thanks again Karl!

Tim

Karl, Hmm Flashrom. ok. Where is that at? I sent you a paypal for euros as described in my PM so whatever I can get for that to help and have spares possibly - please send me. The LED is off on Instance 0. If the ZXPand+ is plugged in (A3 not jumpered with 10K resistance A3), I get that scrambled ch...

All is good with the A3 shunt. Nothing happens now at Instance switch 0 (blank white screen). Other switched instances get the Inverse K (with/with out zxpand+) but no menus come up when double shifting. Acts like regular zx81s. I think it's best to just get some new CPLDs for ZXPand+ since I can't ...

Karl,

Please PM me to ship me (3) to be safe with spares - CPLDs modified with the latest build like you sent me before that work with the ZXPand+. For PayPal or other charging as not to waste more time.

Thank you - Tim

ZXmaster firmware is not coming on. If I switch to instances 1-7, I cant double shift for loading programs. I tried copying zxmore19.p from my zxpand+ plugged into ZXmore on switched instance 1, but I wasnt sure what to enter exactly. Nothing is working so any help would be appreciated. Thank you - ...

Im at the Vintage Computer Festival Mid West demo-ing the ZXPand+ and ZXmore board. All has been working all day great. I decided to see if Siggi's (Wiznet) - IRC chat board would work with my modified ZXmore for ZXPand+. Nothing happened so I unplugged all. When I bring up the ZXPand+ with instance...