Zpráva 214. - 23.6.2020 10:39

Update: I was able to track down part of the issue. Reflashed divIDE with ESXDOS 0.8.8 and it worked straight away. Detects and accesses any of my drives, NMI button works flawlessly. Everything loads, everything works, why did I even need the FATWare? But, the mapping problem bothers me still. So ROM mapping and IDE is fine, but there's definitely something wrong with the ALLRAM mapping. My memory is KM82256LP-8, 80 ns - this same speed grade I have in my Harlequin. Would be grateful for any further ideas!

Zpráva 213. - 23.6.2020 00:29

More to come. Reflashed the FATWare firmware with the 128en. The flashing went fine, but at the end was no display message, the computer just hung. After reset, the new firmware comes in (no logo), still finds the drive, but after pressing a key now behaves strange. But the most interesting happens, when I issue an OUT 227,66(with E open) - the computer hangs, not even responding to reset, displaying always the same vertical stripes: 1 pixel wide blue, 6 pixel black, again 1 pixel blue, then 8 pixels black - and this pattern repeats. Also this happens sometimes with a random power on - doesn't respond to reset, just power cycle.

Zpráva 212. - 22.6.2020 21:44

Hi, I have an issue similar to davesade. Bought a PCB, a set of GALs and the EPROM from here, made it DIY. The CF card or IDE HDD are detected fine, then pressing a key brings us to SOS. Then, after pressing the NMI - the FATWare filebrowser appears for a moment, disappears and the init sequence repeats - divIDE detects the drive and asks for a keypress. Running on a Harlequin 128 rev.D, which is picky to CPU - so I have tried several manufacturers, as well as played around with the +5V voltage - it works the best with a CMOS 20MHz Z80, and the /M1 signal is absolutely OK - it's clean and equals to the CPU one, so it's definitely not the CPU. Any ideas? Thanks!

Zpráva 211. - 07.6.2020 20:10

Noby: Diky, tak budu sledovat shop až se znovu objeví. Díky

Zpráva 210. - 07.6.2020 13:22

Michal: Bude, momentálně se čeká na sběrnicové konektory, takže nemělo cenu je znovu přidávat, když to není komplet.

Zpráva 209. - 05.6.2020 11:49

Zdravím, bude ještě k dispozici stavebnice(klidně i jen samotná deska) nebo hotový modul pro externí ROM?

Zpráva 208. - 04.3.2020 12:19

radek: Podle všeho jen TRD, viz.: http://esxdos.org/

Zpráva 207. - 27.2.2020 17:31

dobry den umime timto HW otevrit i *.scl ?
dekuji za odpoved Bohac Radek

Zpráva 206. - 28.1.2020 08:25

davesade: pokud je nalezeno 1 volume, tak CF je v pořádku. Zkusil bych vyměnit Z80 CPU.

Zpráva 205. - 27.1.2020 23:18

noby: zkusil jsem vicero CF karet (po te, co jsem procetl diskuzi nize), ale chovani je vzdy stejne. Gumak ma akorat novou membranu na klavesnici, ale jinak je puvodni a nemodifikovany. O signalu M1 nic netusim tedy, zkusim to nejak vykoumat.