top of page
Search

Final Guide to RTC support published in Mods & Hacks

1 Mars 2020 - PDF added with schematics and full investigation of the RTC logic and also non documented chips on-board investigated and explain. Check it out 😊 Step By Step and Images from live implementation. Cred to Henrik Gilvad, Thor and Hans Otten for the original scan and schematics

33 views6 comments

Recent Posts

See All

ULA reverse engineering - ULA5RA087

ULA project is on track again, see Mods & Hacks for PDF doc, first version of reverse engineering of ULA5RA087 done! 😊 Check it out, comments or suggest please mail me !

6 Comments


Fernando
Fernando
Apr 08, 2021

I get it! The methods described in Hansotten's sviombouw.pdf file are completely different. The one for NYYRIKKI is to convert the computer to MSX2 without clock and the one for CUC is to convert it to MSX2 with clock. Some time ago I had first applied the NYYRIKKI method and then the CUC method (a lot of trouble!). Now I undo the CUC method and redo the NYYRIKKI method, and then apply your method. It works perfect and it is very simple and clear. The problem I had with the CUC method is that it drained too much power from the battery. Take this opportunity to comment on an error, in your circuit you have not connected the case of…

Like

Fernando
Fernando
Apr 05, 2021

Hello again. Did you make this mod over msx2 converting by NYYRIKKI (no clock) or CUC version?

Like

Fernando
Fernando
Sep 22, 2020

No problem. Thank you for the guide!

Like

lkpalwa
lkpalwa
Sep 22, 2020

New PDF uploaded with correct diodes 👍🏻

Like

lkpalwa
lkpalwa
Sep 22, 2020

Sorry its correct 1N4148 should it be

Like
Post: Blog2_Post
bottom of page